A

Practical based

On

Programming in C Language (107)

Submitted in partial fulfillment of requirement of

Bachelor of Computer Application

BCA Ist
FROM

Pt. Ravishankar Shukla University, Raipur (C.G.)

Session 2022-2023

Guided By: Submitted By:

Mr. Nishid Parmar Janak Sahu
(Head of department)
Dept. of Computer Science

Submitted
To
Vivekanand Mahavidyalaya, KK Road Raipur
S.NO PROGRAMS PAGE NO. SIGNATURE
1. Write a Program to add two numbers. 1

2. Write a Program to perform arithmetic 2

operation in C language.
3. Write a Program to calculate simple interest. 3
4. Write a program to convert celcius to Fahrenheit. 4
5. Write a program to convert Fahrenheit to celcius. 5
6. Write a program to add first and last digit of Four-digit 6
number.
7. Write a program to calculate average rainfall during the year 7
2022.
8. Write a program to swap the value of two variables. 8
9. write a program to calculate percentage 0f students of 5 9
subjects.
10. Write a program to calculate area of circle. 10
11. Write a program to calculate area of triangle. 11
12. Write a program to calculate area of rectangle. 12
13. Write a program to calculate area of square. 13
14. write a program to calculate maximum number of two 14
numbers.
15. write a program to check whether the entered year is leap 15
year or not.
16. write a program to check whether the entered number is even 16
or odd.
17. write a program to check whether the entered number is even 17
or not.
18. Write a program to calculate maximum numbers of three 18
numbers.
19. Write a program using switch case to print color. 19
20. Write a program to print grade of students according to their 20
marks.
21. Write a program using switch case to print week days 21-22
according to numbers.
22. Write a program to check whether an entered character is a 23-24
vowel or consonant.
23. Write a program using switch case to perform arithmetic 25-26
operation according to user choice.
24. Write a program to print the series of natural number from 1 27
to 10 using loop.
25. Write a program to print the series of following series (2, 1, 4 28
,3,6 ,5 ,8 ,7, . . . ).
26. Write a program to print the series of following series 29
(1,4,9,16,25, . . .100).
27. Write a program to print 1 to 10 using while loop. 30
28. Write a program to print even number between 2 to 20. 31
29. Write a program to print 1 to 10 in reverse order. 32
30. Write a program to print odd number between 1 to 19. 33
31. Write a program to print a table of any number user. 34
32. Write a program to check Armstrong number. 35
33. Write a program to print sum of first 10 natural number. 36
34. Write a program to print numbers from 1 to 10. 37
35. Write a program to check prime number. 38
36. Write a program to print series 0,1,1,2,3,5,8…. 39
37. Write a program to print power square. 40
38. Write a program to print all the combination of the number 41
1,2,3.
39. Write a program to print the (*) patern in increasing order. 42
40. Write a program to print the (*) patern in decreasing order. 43
41. Write a program to print the number patern in 44
increasing order.
42. Write a program to print the number patern in 45
decreasing order.
43. Write a program to print break function. 46
44. Write a program to print continue function. 47
45. Write a program to print factorial function. 48
46. Write a program to create a function of addition of 2 numbers 49
with return value. (call by value).
47. Write a program to create a function of addition of 2 numbers 50
without return value. (Call by value).
48. Write a program to calculate simple interest using function 51
with return value. (Call by value).
49. Write a program to calculate simple interest using function 52
without return value. (Call by value).
50. Write a program to calculate factorial number using function 53
with return value. (call by value).
51. Write a program to calculate factorial number using function 54
without return value. (Call by value).
52. Write a program to swapping using functions. 55
53. Write a program to print power square using pow () function. 56
54. Write a program to calculate power using function with return 57
value. (Call by value).
55. Write a program to calculate power using function without 58
return value. (Call by value).
56. Write a program to create a function of addition of 2 numbers 59
with return value. (Call by address).
57. Write a program to create a function of addition of 2 numbers 60
without return value. (Call by address).
58. Write a program to calculate simple interest using function 61
with return value. (Call by address).
59. Write a program to calculate simple interest using function 62
without return value. (Call by address).
60. Write a program to calculate factorial using function with 63
return value. (Call by address).
61. Write a program to calculate factorial using function without 64
return value. (Call by address).
62. Write a program to calculate power using function with return 65
value. (Call by address).
63. Write a program to calculate power using function without 66
return value. (Call by address).
64. Write a program to calculate factorial using recursion. 67
65. Write a program to take 5 values in an array and print those 68
five values.
66. Write a program to take 10 values in an array and print values. 69
67. Write a program to take 10 elements in an array and search 70
the given number present in an array or not.
68. Write a program to find maximum number in an array of 10 71
elements.
69. Write a program to find minimum number in an array of 10 72
elements.
70. Write a program to take 5 elements in an array and sort then 73
in descending order.
71. Write a program to take 5 elements in an array and sort then 74
in ascending order.
72. Write a program to multiplication of two matrix. 75-76
73. Write a program to addition of two matrix. 77-78
74. Write a program to subtraction of two matrix. 79-80
75. Write a program to take 9 elements in a 2-dimensional array 81
of matrix 3*3.
76. Write a program to take one string and print that string. 82
77. Write a program to check whether a string is 83
palindrome or not.
78. Write a program to concatenate two strings. 84
79. Write a program to copy one string into another string. 85
80. Write a program to perform pointer arithmetic. 86
81. Write a program to create structure that take roll no. and 87
name of student. (Structure).
82. Write a program to create structure that take roll no. and 88
name of student. (Union).
83. Write a program to demonstrate pointer in array. 89
84. Write a program to copy the content of one file into another. 90
85. Write a program to append a content of one file into another 91
file.
BCA I

PROGRAM -1
Write a Program to add two numbers.
Program:-
#include<stdio.h>
#include<conio.h>
void main ( )
{
int a, b, c ;
printf (“Enter value of a and b”);
scanf (“%d%d”, &a , &b);
c=a+b;
printf (“addition of a + b = %d” , c );
getch ( );
}
OUTPUT:-

Janak Sahu Page |1

BCA I

PROGRAM- 2
Write a Program to perform arithmetic operation in C
language.

Program:-
#include<stdio.h>
#include<conio.h>
void main ( )
{
int a, b, c, d, e, f ;
printf (“enter value of a and b”);
scanf (“ %d%d” , &a , &b);
c=a+b;
d=a–b;
e=a*b;
f=a/b;
printf (“ \n Addition of a + b =%d” , c);
printf (“ \n Subtraction of a – b =%d” , d);
printf (“ \n Multiplication of a * b =%d” , e);
printf (“ \n Division of a / b =%d” , f );
getch ( );
}
OUTPUT:-

Janak Sahu Page |2

BCA I

PROGRAM -3
Write a Program to calculate simple interest.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int p , r , t, si ;
printf (“enter value of p, r, t”);
scanf (“%d , %d , %d” , &p , &r , &t);
si = (p * r * t) / 100 ;
printf (“simple interest = %d” , si);
getch ( );
}
OUTPUT:-

Janak Sahu Page |3

BCA I

PROGRAM-4
Write a program to convert celcius to Fahrenheit.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int c , f ;
clrscr ( ) ;
printf (“Enter value of c”);
scanf (“%d” , &c);
f = (c*9/5) + 32 ;
printf (“f = %d” , f );
getch ( );
}

OUTPUT:-

Janak Sahu Page |4

BCA I

PROGRAM -5
Write a program to convert Fahrenheit to celcius.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
float f , c ;
printf (“enter value of f ”);
scanf (“%f ” , &f );
c = 5/9 * (f- 32) ;
printf (“c = %f ” , c);
getch ( );
}

OUTPUT:-

Janak Sahu Page |5

BCA I

PROGRAM -6
Write a program to add first and last digit of
Four digit number.
Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int n , a , b ;
printf (“enter four digits\n”);
scanf (“%d” , &n);
a = n / 1000 ;
b = n % 10 ;
printf (“%d” , a + b);
getch ( );
}

OUTPUT:-

Janak Sahu Page |6

BCA I

PROGRAM -7
Write a program to calculate average rainfall during the
year 2020.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int Jan, feb, mar, April, may, Jun, jul, Aug, sep, oct , nov, dec ;
float Average ;
printf (“Enter value of jan , feb , mar , apr , may , jun , jul , aug , sep , oct , nov ,
dec”);
scanf (“%d %d %d %d %d %d %d %d %d %d %d %d” , &jan , &feb , &mar ,
&apr , &may , &jun , &jul , &aug , &sep , &oct , &nov , &dec);
Average =( jan+feb+mar+apr+may+jun+jul+aug+sep+oct+nov+dec ) / 12 ;
printf = (“Average = %f ” , Average);
getch ( );
}

OUTPUT:-

Janak Sahu Page |7

BCA I

PROGRAM -8
Write a program to swap the value of two variables.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int a , b , c ;
printf (“Enter value of a and b”);
scanf (“%d , %d” , &a , &b);
c=a;
a=b;
b=c;
printf (“%d , %d” , a , b);
getch ( );
}

OUTPUT:-

Janak Sahu Page |8

BCA I

PROGRAM -9
Write a program to calculate percentage 0f students of 5
subjects.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int a , b , c , d , e , percentage ;
printf (“Enter the value of a , b , c , d , e”);
scanf (“%d%d%d%d%d , &a , &b , &c , &d , &e”);
percentage = ( a + b + c + d + e ) * 100 / 500;
printf (“percentage of students =%d” , percentage);
getch ( );
}

OUTPUT:-

Janak Sahu Page |9

BCA I

PROGRAM -10
Write a program to calculate area of circle.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int radius , area ;
printf (“enter radius of circle \n”);
scanf (“%d” , &radius);
Area = 3.14 * radius * radius ;
printf (“Area of circle = %d \n ” , Area);
getch ( );
}

OUTPUT:-

Janak Sahu P a g e | 10
BCA I

PROGRAM -11
Write a program to calculate area of triangle.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
float base , height , area ;
printf (“enter base in centimeter :”);
scanf (“%f ” , &base);
printf (“enter height in centimeter :”);
scanf(“%f ” , &height);
Area = ( base * height )/2;
printf (“area of triangle=%f ” , area );
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 11
BCA I

PROGRAM -12
Write a program to calculate area of rectangle.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
float length , breadth , area ;
printf (“enter length in centimeter”);
scanf (“%f ” , &length);
printf (“enter breadth in centimeter”);
scanf (“%f ” , &breadth);
Area = length * breadth;
printf (“Area of reactangle = %f ” , area);
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 12
BCA I

PROGRAM -13
Write a program to calculate area of square.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
float length , area ;
printf (“enter length in centimeter”);
scanf (“%f ” , &length);
Area = length * length ;
printf (“Area of square = %f ” , area );
getch ( );
}

OUTPUT:-

Janak Sahu P a g e | 13
BCA I

PROGRAM -14
Write a program to calculate maximum number of two
numbers.

Program:
#include <stdio.h>
#include <conio.h>
void main ( )
{
int a , b ;
printf (“Enter two numbers”);
scanf (“%d , %d” , &a , &b);
if (a>b)
{
printf (“a is maximum”);
}
else
{
printf (“b is maximum”);
}
getch( );
}
OUTPUT:

Janak Sahu P a g e | 14
BCA I

PROGRAM -15
Write a program to check whether the entered year is leap
year or not.

Program:
#include <stdio.h>
#include <conio.h>
void main ( )
{
int year ;
printf (“Enter a leap year to check if it is a leap year\n”);
scanf (“%d” , &year);
if (year % 400==0)
printf (“%d is a leap year.\n” , year);
else if (year % 100==0)
printf (“%d is not a leap year.\n” , year);
else if (year % 4==0)
printf (“%d is a leap year.\n” , year);
else
printf (“%d is not a leap year.\n” , year);
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 15
BCA I

PROGRAM -16
Write a program to check whether the entered number is
even or odd.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int n ;
printf (“Enter any number”);
scanf (“%d” , &n);
if (n % 2= = 0)
{
printf (“ It is an even number\n”);
}
else
{
printf (“ It is an odd number \n”);
}
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 16
BCA I

PROGRAM -17
Write a program to check whether the entered number is
even or not.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int n ;
printf (“Enter any number”);
scanf (“%d” , &n);
if (n % 2= = 0)
{
printf (“ It is an even number\n”);
}
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 17
BCA I

PROGRAM -18
Write a program to calculate maximum numbers of three
numbers.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int a , b , c ;
printf (“Enter three numbers”);
scanf (“%d , %d , %d” , &a , &b , &c);
if (a>b)
{
if (a>c)
{
printf (“a is maximum”);
}
else
printf (“c is maximum”);
}
else
{
If (b>c)
printf (“b is maximum”);
else
printf (“c is maximum”);
}
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 18
BCA I

PROGRAM -19
Write a program using switch case to print color.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int n ;
printf (Enter value of n”);
scanf (“%d” , &n);
switch (n)
{
case 1 :
printf (“BLUE”);
break ;
case 2 :
printf (“BLACK”);
break ;
case 3 :
printf (“CYAN”);
break ;
case 4 :
printf (“RED”);
break ;
case 5 :
printf (“MAGENTA”);
break ;
default :
printf (“invalid”);
break ;
}
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 19
BCA I

PROGRAM -20
Write a program to print grade of students according to
their marks.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int percentage ;
printf (“enter percentage”);
scanf (“%d” , &per);
if (per>80)
printf (“grade A”);
else if (( per >=60) && (per<=79))
printf (“grade B”);
else if ((per>=50) && (per<=59))
printf (“grade C”);
else if ((per >=40) && (per<=49))
printf (“grade D”);
else if (per<=40)
printf (“fail”);
getch ();
}
OUTPUT:-

Janak Sahu P a g e | 20
BCA I

PROGRAM -21
Write a program using switch case to print week days
according to numbers.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int n ;
printf (“enter value of n”);
scanf (“%d” , &n);
switch (n)
{
case 1 :
printf (“monday”);
break ;
case 2 :
printf (“tuesday”);
break ;
case 3 :
printf (“wednesday”);
break ;
case 4 :
printf (“thursday”);
break ;
case 5 :
printf (“friday”);
break ;
case 6 :
printf (“saturday”);
break ;
case 7 :
printf (“sunday”);
break ;
default :
printf (“invalid”);
break ;
}
getch ( );
}

Janak Sahu P a g e | 21
BCA I

OUTPUT:-

Janak Sahu P a g e | 22
BCA I

PROGRAM -22
Write a program to check whether an entered character is
a vowel or consonant.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
char alphabet ;
printf (“Enter an alphabet character :”);
scanf (“%c” , &alphabet);
switch (alphabet)
{
Case ‘ a ’ :
printf (“vowel”);
break;
Case ‘ e ’ :
printf (“vowel”);
break;
Case ‘ i ’ :
printf (“vowel”);
break;
Case ‘ o ’ :
printf (“vowel”);
break;
Case ‘ u ’ :
printf (“vowel”);
break;
Case ‘ A ’ :
printf (“vowel”);
break;
Case ‘ E ’ :
printf (“vowel”);
break;
Case ‘ I ’ :
printf (“vowel”);
break;
Case ‘ O ’ :
printf (“vowel”);
break;
Case ‘ U ’ :
printf (“vowel”);
break;
default :
printf (“consonant”);
}
getch ( );
}

Janak Sahu P a g e | 23
BCA I

OUTPUT:-

Janak Sahu P a g e | 24
BCA I

PROGRAM -23
Write a program using switch case to perform arithmetic
operation according to user choice.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int a , b , ch , Addition , Subtraction , Multiplication , Division ;
printf (“enter value of a and b”);
scanf (“%d , %d , &a , &b”);
printf (“ \n1 Addition \n 2 Subtraction \n 3Multiplication
\n 4 Division ”);
printf (“\n enter your choice”);
scanf (“%d” , &ch);
switch (ch)
{
case 1 :
Addition = (a + b);
printf (“%d” , Addition);
break ;
case 2 :
Subtraction = (a - b);
printf (“%d”, Subtraction);
break ;
case 3 :
Multiplication = (a / b);
printf (“%d” , Multiplication);
break ;
case 4 :
Division = (a * b);
printf (“%d” , Division);
break ;
default :
printf (“invalid”);
break ;
}
getch ( );
}

Janak Sahu P a g e | 25
BCA I

OUTPUT:-

Janak Sahu P a g e | 26
BCA I

PROGRAM -24
Write a program to print the series of natural number
from 1 to 10 using loop.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int i ;
printf (“print natural numbers from 1 to 10 \n”);
for (i = 1 ; i < = 10 ; i++)
{
printf (“%d \n” , i);
}
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 27
BCA I

PROGRAM -25
Write a program to print the series of following series.
(2 , 1 , 4 , 3 , 6 , 5 , 8 , 7 , . . . )
Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int n , b ;
printf (“print the series\n”);
for (n = 2 ; n < = 20 ; n = n + 2 )
{
b=n–1;
printf (“\n%d\n%d” , n , b);
}
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 28
BCA I

PROGRAM -26
Write a program to print the series of following series.
(1 , 4 , 9 , 16 , 25 , . . . 100)
Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int I ;
printf (“print the series\n”);
for (I = 1 ; I < = 10 ; I + +)
{
printf (“%d\n” , i*i);
}
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 29
BCA I

PROGRAM -27
Write a program to print 1 to 10 using while loop.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int i ;
printf (“print numbers from 1 to 10\n”);
i=1;
while (i<=10)
{
printf (“\n%d”,i);
i++ ;
}
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 30
BCA I

PROGRAM -28
Write a program to print even number between 2 to 20.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int i ;
printf (“Print even numbers between 2 to 20\n”);
printf (“Even numbers :\n”);
for (i = 2 ; i < = 20 ; i = i + 2 )
{
printf (“%d \n” , i );
}
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 31
BCA I

PROGRAM:-29
Write a program to print 1 to 10 in reverse order.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int i , n ;
printf (“print numbers from 1 to 10 in reverse order\n”);
i = 10 ;
do
{
printf (“%d \n”, i);
i--;
}
while (i > = 1);

getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 32
BCA I

PROGRAM -30
Write a program to print odd number between 1 to 19.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int i ;
printf (“print odd numbers between 1 to 19\n”);
printf (“odd numbers:\n”);
for (i = 1 ; i<=20 ; i = i+2)
{
printf (“%d\n” , i);
}
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 33
BCA I

PROGRAM -31
Write a program to print a table of any number by user.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int n , I ;
printf (“Enter a number”);
scanf(“%d” , &n);
for ( I = 1 ; I < = 10 ; I + +)
{
printf (“%d * %d = %d\n” , n , I , n * I );
}
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 34
BCA I

PROGRAM -32
Write a program to check Armstrong number.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int n , r , s = 0 , t ;
printf (“Enter any number”);
scanf (“%d” , &n);
t=n;
while (n ! = 0)
{
r = n % 10 ;
s = s + (r * r * r);
n = n / 10;
}
if (t = = s)
printf (“It is a armstrong number”);
else
printf (“ It is not a armstrong number”);
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 35
BCA I

PROGRAM -33
Write a program to print sum of first 10 natural number.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int n , i , sum = 0 ;
printf (“Enter Natural numbers from 1 to 10”);
scanf (“%d” , &n);
for (i = 1 ; i < = 10 ; i + +)
{
Sum = sum + i ;
}
printf (“sum = %d” , sum);
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 36
BCA I

PROGRAM -34
Write a program to print numbers from 1 to 10.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int i ;
printf (“print numbers from 1 to 10\n”);
i=1;
do
{
printf (“%d\n” ,i );
i++;
}
while ( i< = 10);

getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 37
BCA I

PROGRAM -35
Write a program to check prime number.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int n , i , s = 0 ;
printf (“Enter any number\n”);
scanf(“%d” , &n );
for (i = 2 ; i < n ; i + +)
{
if (n % i = = 0)
{
s=1;
}
}
if (s = = 0)
printf( “It is a prime number” );
else
printf ( “It is not a prime number” );
getch( );
}
OUTPUT:-

Janak Sahu P a g e | 38
BCA I

PROGRAM -36
Write a program to print series 0,1,1,2,3,5,8….

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int a = 0 , b = 1 , c , i , n ;
printf (“Enter number of term to print ”);
scanf (“%d” , &n);
printf(“\n%d\n%d” , a , b );
for ( i = 1; i < = n-2; i + + )
{
c=a+b;
printf (“\n%d” , c);
a=b;
b=c;
}
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 39
BCA I

PROGRAM -37
Write a program to print power square.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int a , b, i , result = 1 ;
printf (“Enter a number”);
scanf (“%d” , &a);
printf (“”Enter power number”);
scanf (“%d” , &b);
for (i = 1; i< = b; i + +)
{
Result = result * a ;
}
printf (“%d” , result );
getch( );
}
OUTPUT:-

Janak Sahu P a g e | 40
BCA I

PROGRAM -38
Write a program to print all the combination of the
number 1,2,3 .

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int i , j , k ;
for (i = 1 ; i < = 3 ; i + +)
{
for (j = 1 ; j < = 3 ; j + +)
{
for (k = 1 ; k < = 3 ; k + +)
{
printf (“%d%d%d\n” , i , j , k);
}
}
}
getch( );
}
OUTPUT:-

Janak Sahu P a g e | 41
BCA I

PROGRAM -39
Write a program to print the ( * ) pattern in increasing
order.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int i , j ;
printf (“Print a pattern in star series”);
for (i = 1 ; i < = 5 ; i + +)
{
for (j = 1 ; j < = i ; j + +)
{
printf ( “ * ”);
}
printf (“\n”);
}
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 42
BCA I

PROGRAM -40
Write a program to print the ( * ) pattern in decreasing
order.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int i , j ;
printf (“Print a pattern in star series”);
for (i = 1 ; i < = 5 ; i + +)
{
for (j = i ; j < = 5 ; j + +)
{
printf ( “ * ”);
}
printf (“\n”);
}
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 43
BCA I

PROGRAM -41
Write a program to print the number pattern in
increasing order.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int i , j ;
printf (“Print a pattern in number series”);
for (i = 1 ; i < = 5 ; i + +)
{
for (j = 1 ; j < = i ; j + +)
{
printf (“ %d ” , j );
}
printf (“\n”);
}
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 44
BCA I

PROGRAM -42
Write a program to print the number pattern in
decreasing order.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int i , j ;
printf (“Print a pattern in number series”);
for (i = 1 ; i < = 5 ; i + +)
{
for (j = i ; j < = 5 ; j + +)
{
printf (“ %d ” , j );
}
printf (“\n”);
}
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 45
BCA I

PROGRAM -43
Write a program to print break function.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
// break function
int i = 1;
clrscr ( );
while ( i < = 10)
{
printf (“%d\n” , i);
if ( i = = 5)
{
break ;
}
// printf (“%d\n” , i);
i++;
}
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 46
BCA I

PROGRAM -44
Write a program to print continue function.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
// continue function
int i ;
clrscr ( );
for ( i = 1 ; i < = 10 ; i + + )
{
if ( i = = 5)
{
continue ;
}
printf (“%d\n” , i);
}
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 47
BCA I

PROGRAM -45
Write a program to print factorial function.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int n , i , f = 1 ;
clrscr ( );
printf (“Enter factorial value”);
scanf (“%d” , &n);
for (i = 1 ; i < = n ; i + +)
{
f=f*i;
}
printf (“%d” , f );

getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 48
BCA I

PROGRAM -46
Write a program to create a function of addition of 2
numbers with return value.(call by value).

Program:-
#include <stdio.h>
#include <conio.h>
int add ( int , int ) ;
void main ( )
{
int a , b , c ;
printf (“Enter value of a and b”);
scanf (“%d%d” , &a , &b);
c = add ( a , b );
printf (“%d” , c);
getch ( );
}
int add ( int x , int y )
{
int z ;
z=x+y;
return (z);
}
OUTPUT:-

Janak Sahu P a g e | 49
BCA I

PROGRAM -47
Write a program to create a function of addition of 2
numbers without return value.(call by value).

Program:-
#include <stdio.h>
#include <conio.h>
void add ( int , int ) ;
void main ( )
{
int a , b ;
clrscr ( );
printf (“Enter value of a and b”);
scanf (“%d%d” , &a , &b);
add ( a , b );
getch ( );
}
void add ( int x , int y )
{
int z ;
z=x+y;
printf (“%d” , z);
}
OUTPUT:-

Janak Sahu P a g e | 50
BCA I

PROGRAM -48
Write a program to calculate simple interest using
function with return value. (call by value).

Program:-
#include <stdio.h>
#include <conio.h>
int si ( int , int , int ) ;
void main ( )
{
int p , r , t , u ;
printf (“Enter value of p , r , t”);
scanf (“%d%d%d” , &p , &r , &t);
u = si ( p , r , t );
printf (“%d” , u);
getch ( );
}
int si ( int x , int y , int z )
{
int v ;
v = ( x * y * z ) /100 ;
return (v);
}
OUTPUT:-

Janak Sahu P a g e | 51
BCA I

PROGRAM -49
Write a program to calculate simple interest using
function without return value. (call by value).

Program:-
#include <stdio.h>
#include <conio.h>
void si ( int , int , int ) ;
void main ( )
{
int p , r , t ;
printf (“Enter value of p , r , t”);
scanf (“%d%d%d” , &p , &r , &t);
si ( p , r , t );
getch ( );
}
void si ( int x , int y , int z )
{
int u ;
u = ( x * y * z ) /100 ;
printf (“%d” , u);
}
OUTPUT:-

Janak Sahu P a g e | 52
BCA I

PROGRAM -50
Write a program to print factorial number using function
with return value. (call by value).

Program:-
#include <stdio.h>
#include <conio.h>
int fact ( int , int ) ;
void main ( )
{
int x , y , f = 1;
clrscr ( );
printf (“Enter any factorial value \n”);
scanf (“%d” , &x);
f = fact ( x , y);
printf (“%d” , f );
getch ( );
}
int fact ( int n , int i )
{
int f = 1;
for ( i =1; i < = n; i + + )
{
f = f * i;
}
return ( f );
}
OUTPUT:-

Janak Sahu P a g e | 53
BCA I

PROGRAM -51
Write a program to print factorial number using function
without return value. (call by value).

Program:-
#include <stdio.h>
#include <conio.h>
void fact ( int , int ) ;
void main ( )
{
int n , i ;
clrscr ( );
printf (“Enter any factorial value \n”);
scanf (“%d” , &n);
fact ( n , i);
getch ( );
}
void fact ( int n , int i )
{
int f = 1;
for ( i =1; i < = n; i + + )
{
f = f * i;
}
printf (“%d” , f );
}
OUTPUT:-

Janak Sahu P a g e | 54
BCA I

PROGRAM -52
Write a program to swapping using functions.

Program:-
#include <stdio.h>
#include <conio.h>
void swap ( int , int ) ;
void main ( )
{
int a , b ;
printf (“Enter value of a and b\n”);
scanf (“%d%d” , &a , &b);
swap( a , b );
getch ( );
}
void swap ( int x , int y )
{
int z ;
z=x;
x=y;
y=z;
printf (“%d%d” , x ,y );
}
OUTPUT:-

Janak Sahu P a g e | 55
BCA I

PROGRAM -53
Write a program to print power square using pow ( )
function.

Program:-
#include <stdio.h>
#include <conio.h>
#include <math.h>
void main ( )
{
int a , b , p = 1 ;
printf (“Enter a number”);
scanf (“%d” , &a);
printf (“Enter power number”);
scanf (“%d” , &b);
p = pow (a , b);
printf (“%d” , p);
getch ( );
} OUTPUT:-

Janak Sahu P a g e | 56
BCA I

PROGRAM -54
Write a program to calculate power using function with
return value.(call by value).

Program:-
#include<stdio.h>
#include<conio.h>
int power (int , int);
void main()
{
int a , b , c ;
printf(“Enter any number”);
scanf(“%d”,&a);
printf(“Enter power”);
scanf(“%d”,&b);
c = power(a,b);
printf ( “%d” , c );
getch( );
}
int power( int x , int y)
{
int i , p =1;
for ( i=1; i < = y ; i++)
{
p = p*x;
}
return (p);
}
OUTPUT:-

Janak Sahu P a g e | 57
BCA I

PROGRAM -55
Write a program to calculate power using function
without return value. (call by value).

Program:-
#include<stdio.h>
#include<conio.h>
void power (int , int);
void main()
{
int a , b ;
printf(“Enter any number”);
scanf(“%d”,&a);
printf(“Enter power”);
scanf(“%d”,&b);
power (a,b);
getch ( );
}
void power ( int x , int y)
{
int i , p =1;
for ( i=1; i < = y ; i++)
{
p = p*x;
}
printf(“%d”,p);
}
OUTPUT:-

Janak Sahu P a g e | 58
BCA I

PROGRAM -56
Write a program to create a function of addition of 2
numbers with return value.(call by address).

Program:-
#include <stdio.h>
#include <conio.h>
int add ( int , int ) ;
void main ( )
{
int a , b , c ;
printf (“Enter value of a and b”);
scanf (“%d%d” , &a , &b);
c = add ( &a , &b );
printf (“%d” , c);
getch ( );
}
int add ( int x , int y )
{
int z ;
z=x+y;
return (z);
}
OUTPUT:-

Janak Sahu P a g e | 59
BCA I

PROGRAM -57
Write a program to create a function of addition of 2
numbers without return value.(call by address).

Program:-
#include <stdio.h>
#include <conio.h>
void add ( int , int ) ;
void main ( )
{
int a , b ;
printf (“Enter value of a and b”);
scanf (“%d%d” , &a , &b);
add ( &a , &b );
getch ( );
}
void add ( int x , int y )
{
int z ;
z=x+y;
printf (“%d” , z);
}
OUTPUT:-

Janak Sahu P a g e | 60
BCA I

PROGRAM -58
Write a program to calculate simple interest using
function with return value.(call by address).

Program:-
#include <stdio.h>
#include <conio.h>
int si ( int , int , int ) ;
void main ( )
{
int p , r , t , u ;
printf (“Enter value of p , r , t”);
scanf (“%d%d%d” , &p , &r , &t);
u = si ( &p , &r , &t );
printf (“%d” , u);
getch ( );
}
int si ( int x , int y , int z )
{
int v ;
v = ( x * y * z ) /100 ;
return (v);
}
OUTPUT:-

Janak Sahu P a g e | 61
BCA I

PROGRAM -59
Write a program to calculate simple interest using
function without return value.(call by address).

Program:-
#include <stdio.h>
#include <conio.h>
void si ( int , int , int ) ;
void main ( )
{
int p , r , t ;
printf (“Enter value of p , r , t”);
scanf (“%d%d%d” , &p , &r , &t);
si ( &p , &r , &t );
getch ( );
}
void si ( int x , int y , int z )
{
int u ;
u = ( x * y * z ) /100 ;
printf (“%d” , u);
}
OUTPUT:-

Janak Sahu P a g e | 62
BCA I

PROGRAM -60
Write a program to print factorial number using function
with return value. (call by address).

Program:-
#include <stdio.h>
#include <conio.h>
int fact ( int , int ) ;
void main ( )
{
int x , y , f = 1;
clrscr ( );
printf (“Enter any factorial value \n”);
scanf (“%d” , &x);
f = fact ( &x , &y);
printf (“%d” , f );
getch ( );
}
int fact ( int n , int i )
{
int f = 1;
for ( i =1; i < = n; i + + )
{
f = f * i;
}
return ( f );
}

OUTPUT:-

Janak Sahu P a g e | 63
BCA I

PROGRAM -61
Write a program to print factorial number using function
without return value. (call by address).

Program:-
#include <stdio.h>
#include <conio.h>
void fact ( int , int ) ;
void main ( )
{
int n , i ;
clrscr ( );
printf (“Enter any factorial value \n”);
scanf (“%d” , &n);
fact ( &n , &i);
getch ( );
}
void fact ( int n , int i )
{
int f = 1;
for ( i =1; i < = n; i + + )
{
f = f * i;
}
printf (“%d” , f );
}
OUTPUT:-

Janak Sahu P a g e | 64
BCA I

PROGRAM -62
Write a program to calculate power using function with
return value.(call by address).

Program:-
#include<stdio.h>
#include<conio.h>
int power (int , int);
void main()
{
int a , b , c ;
printf(“Enter any number”);
scanf(“%d”,&a);
printf(“Enter power”);
scanf(“%d”,&b);
c = power(&a , &b);
printf ( “%d” , c );
getch( );
}
int power( int x , int y)
{
int i , p =1;
for ( i=1; i < = y ; i++)
{
p = p*x;
}
return (p);
}
OUTPUT:-

Janak Sahu P a g e | 65
BCA I

PROGRAM -63
Write a program to calculate power using function
without return value.(call by address).

Program:-
#include<stdio.h>
#include<conio.h>
void power (int , int);
void main()
{
int a , b ;
printf(“Enter any number”);
scanf(“%d”,&a);
printf(“Enter power”);
scanf(“%d”,&b);
power (&a , &b);
getch ( );
}
void power ( int x , int y)
{
int i , p =1;
for ( i=1; i < = y ; i++)
{
p = p*x;
}
printf(“%d”,p);
}
OUTPUT:-

Janak Sahu P a g e | 66
BCA I

PROGRAM -64
Write a program to calculate factorial using recursion.

Program:-
#include<stdio.h>
#include<conio.h>
int fact (int);
void main ( )
{
int x , y ;
clrscr ( );
printf ("Enter the value");
scanf (“%d” , &x);
y = fact (x);
printf (“%d” , p);
getch ( );
}
int fact (int n)
{
int f;
if (n = = 1)
return(1);
else
f = n*fact(n-1);
return ( f );
}
OUTPUT:-

Janak Sahu P a g e | 67
BCA I

PROGRAM -65
Write a program to take 5 values in an array and print
those five values.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int a [ 5 ] , j , i ;
printf (“Enter five values ”);
for (i = 1 ; i < = 5 ; i + +)
{
scanf ( “%d” , &a [ i ] );
}
for (i = 1 ; i < = 5 ; i + +)
{
printf ( “%d” , a [ i ] );
}
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 68
BCA I

PROGRAM -66
Write a program to take 10 values in an array and print
value.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int a [ 10 ] , i , s = 0 ;
printf (“Enter 10 values”);
for (i = 1 ; i < = 10 ; i + +)
{
scanf ( “%d” , &a [ i ] );
}
for (i = 1 ; i < = 10 ; i + +)
{
s = a [ i ] + s;
}
printf ( “%d” , s );
}
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 69
BCA I

PROGRAM -67
Write a program to take 10 element in an array and
search the given number present in an array or not.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int a [ 10 ] , c = 0 , i , b ;
printf (“Enter 10 values\n ”);
for (i = 0 ; i < 10 ; i + +)
{
scanf ( “%d” , &a [ i ] );
}
printf (“Enter any number\n”);
scanf (“%d” , &b);
for (i = 0 ; i < 10 ; i + +)
{
if (a [ i ]= = b)
{
c = 1;
}
}
if ( c = = 1)
printf ( “%d is available” , b);
else
printf (“%d is not available” , b);
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 70
BCA I

PROGRAM -68
Write a program to find maximum number in an array
Of 10 element.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int i , max , a [ 10 ];
printf (“Enter any ten numbers”);
scanf (“%d” , &a);
for (i = 1 ; i < 10 ; i + +)
{
scanf (“%d” , &a [ i ] );
}
max = a [ 1 ];
for (i = 1 ; i < 10 ; i + + )
{
if (max < a [ i ] )
{
max = a [ i ];
}
}
printf ( “max = %d” , max );
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 71
BCA I

PROGRAM -69
Write a program to find minimum number in an array
Of 10 element.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int i , min , a [ 10 ];
printf (“Enter any ten numbers”);
scanf (“%d” , &a);
for (i = 1 ; i < 10 ; i + +)
{
scanf (“%d” , &a [ i ] );
}
min = a [ 1 ];
for (i = 1 ; i < 10 ; i + + )
{
if (min > a [ i ] )
{
min = a [ i ];
}
}
printf ( “min = %d” , min );
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 72
BCA I

PROGRAM -70
Write a program to take 5 element in an array and sort
then in descending order.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int a [ 5 ] , i, j ,t ;
clrscr ( );
printf (“Enter five values”);
for (i = 1 ; i < = 5 ; i + +)
{
scanf (“%d” , &a [ i ] );
}
for (i = 1 ; i < = 5 ; i + +)
{
for ( j = i + 1 ; j < = 5 ; j + +)
{
if (a [ i ] < a [ j ] )
{
t = a [ i ];
a [ i ] = a [ j ];
a [ j ] = t;
}
}
}
for (i = 1 ; i < = 5 ; i + +)
{
printf (“%d\n” , a [ i ] );
}
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 73
BCA I

PROGRAM -71
Write a program to take 5 element in an array and sort
then in ascending order.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int a [ 5 ] , i, j ,t ;
clrscr ( );
printf (“Enter five values”);
for (i = 1 ; i < = 5 ; i + +)
{
scanf (“%d” , &a [ i ] );
}
for (i = 1 ; i < = 5 ; i + +)
{
for ( j = i + 1 ; j < = 5 ; j + +)
{
if (a [ i ] > a [ j ] )
{
t = a [ i ];
a [ i ] = a [ j ];
a [ j ] = t;
}
}
}
for (i = 1 ; i < = 5 ; i + +)
{
printf (“%d\n” , a [ i ] );
}
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 74
BCA I

PROGRAM -72
Write a program to multiplication of two matrix.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int a [ 3 ] [ 3 ] , b [ 3 ] [ 3 ] , c [ 3 ] [ 3 ] , i , j , k ;
clrscr ( );
printf (“Enter first matrix”);
for (i = 0 ; i < 3 ; i + +)
{
for (j = 0 ; j < 3 ; j + +)
{
scanf (“%d” , &a [ i ] [ j ] );
}
}
printf (“Enter second matrix”);
for (i = 0 ; i < 3 ; i + +)
{
for (j = 0 ; j < 3 ; j + +)
{
scanf (“%d” , &b [ i ] [ j ] );
}
}
printf (“Multiplication of matrix\n”);
for (i = 0 ; i < 3 ; i + +)
{
for (j = 0 ; j < 3 ; j + +)
{
c [ i ] [ j ] = 0;
}
}
for (i = 0 ; i < 3 ; i + +)
{
for (j = 0 ; j < 3 ; j + +)
{
for (k = 0 ; k < 3 ; k + +)

Janak Sahu P a g e | 75
BCA I

{
c [ i ] [ j ] = c [ i ] [ j ] + a [ i ] [ j ] * b [ k ] [ j ];
}
}
}
for (i = 0 ; i < 3 ; i + +)
{
for (j = 0 ; j < 3 ; j + +)
{
printf (“%d” , c [ i ] [ j ] );
}
printf (“\n”);
}
getch ( );
}

OUTPUT:-

Janak Sahu P a g e | 76
BCA I

PROGRAM -73
Write a program to addition of two matrix.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int a [ 3 ] [ 3 ] , b [ 3 ] [ 3 ] , sum [ 3 ] [ 3 ] , i , j ;
clrscr ( );
printf (“Enter 9 elements for first matrix”);
for (i = 1 ; i < = 3 ; i + +)
{
for (j = 1 ; j < = 3 ; j + +)
{
scanf (“%d” , &a [ i ] [ j ] );
}
}
printf (“Enter 9 elements for second matrix”);
for (i = 1 ; i < = 3 ; i + +)
{
for (j = 1 ; j < = 3 ; j + +)
{
scanf (“%d” , &b [ i ] [ j ] );
}
}
printf (“sum of matrix\n”);
for (i = 1 ; i < = 3 ; i + +)
{
for (j = 1 ; j < = 3 ; j + +)
{
sum [ i ] [ j ] = a [ i ] [ j ] + b [ i ] [ j ] ;
}
}
for (i = 1 ; i < = 3 ; i + +)
{
for (j = 1 ; j < = 3 ; j + +)
{
printf (“%d” , sum [ i ] [ j ] );
}
printf (“\n”);
}
getch ( );
}

Janak Sahu P a g e | 77
BCA I

OUTPUT:-

Janak Sahu P a g e | 78
BCA I

PROGRAM -74
Write a program to subtraction of two matrix.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int a [ 3 ] [ 3 ] , b [ 3 ] [ 3 ] , sub [ 3 ] [ 3 ] , i , j ;
clrscr ( );
printf (“Enter 9 elements for first matrix”);
for (i = 1 ; i < = 3 ; i + +)
{
for (j = 1 ; j < = 3 ; j + +)
{
scanf (“%d” , &a [ i ] [ j ] );
}
}
printf (“Enter 9 elements for second matrix”);
for (i = 1 ; i < = 3 ; i + +)
{
for (j = 1 ; j < = 3 ; j + +)
{
scanf (“%d” , &b [ i ] [ j ] );
}
}
printf (“subtraction of matrix\n”);
for (i = 1 ; i < = 3 ; i + +)
{
for (j = 1 ; j < = 3 ; j + +)
{
sub [ i ] [ j ] = a [ i ] [ j ] - b [ i ] [ j ] ;
}
}
for (i = 1 ; i < = 3 ; i + +)
{
for (j = 1 ; j < = 3 ; j + +)
{
printf (“%d” , sub [ i ] [ j ] );
}
printf (“\n”);
}
getch ( );
}

Janak Sahu P a g e | 79
BCA I

OUTPUT:-

Janak Sahu P a g e | 80
BCA I

PROGRAM -75
Write a program to take 9 elements in an 2 dimensional
array of matrix 3 * 3.

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int a [ 3 ] [ 3 ] , i , j ;
printf (“enter 9 elements”);
for ( i = 0 ; i < = 2 ; i + +)
{
for ( j = 0 ; j < = 2 ; j + +)
{
scanf (“%d” , &a [ i ] [ j ] );
}
}
for ( i = 0 ; i < = 2 ; i + +)
{
for ( j = 0 ; j < = 2 ; j + +)
{
printf (“%d” , a [ i ] [ j ] );
}
printf (“\n”);
}
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 81
BCA I

PROGRAM -76
Write a program to take one string and print that string .

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
char s1 [ 10 ];
clrscr ( );
printf (“Enter any string”);
scanf (“%s” , &s1);
printf (“%s” , s1);
getch ( );
}

OUTPUT:-

Janak Sahu P a g e | 82
BCA I

PROGRAM -77
Write a program to check whether a string is palindrome
or not .

Program:-
#include <stdio.h>
#include <conio.h>
void main ( )
{
int n , r , sum = 0 , temp ;
clrscr ( );
printf (“Enter the number”);
scanf (“%d” , &n);
temp = n ;
while (n>0)
{
r = n % 10 ;
sum = (sum * 10) + r ;
n = n / 10 ;
}
if (temp = = sum)
printf (“Pallindrome number”);
else
printf (“Not palindrome number”);
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 83
BCA I

PROGRAM -78
Write a program to concatenate two string .

Program:-
#include<stdio.h>
#include<conio.h>
void main ( )
{
char s [10] , s2 [10];
int i , l = 0;
clrscr ( );
printf (“Enter first string”);
scanf (“%s” , &s);
printf (“Enter second string”);
scanf (“%s” , &s2);
for (i = 0 ; s [ i ]!='\0' ; i++)
{
l++;
}
for (i = 0 ; s2 [ i ]!='\0' ; i++)
{
s [ l ] = s2 [ i ];
l++;
}
s [ l ] = '\0' ;
printf ("%s" , s);
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 84
BCA I

PROGRAM -79
Write a program to copy one string into another string .

Program:-
#include<stdio.h>
#include<conio.h>
void main ( )
{
char s1 [10] , s2 [10];
int i ;
clrscr ( );
printf (“Enter any string”);
scanf (“%s” , &s1);
for (i = 0 ; s1[ i ]!='\0' ; i++)
{
s2 [ i ] = s1[ i ];
}
s2 [ i ] ='\0';
printf ("%s" , s2);
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 85
BCA I

PROGRAM -80
Write a program to perform pointer arithmetic.

Program:-
#include<stdio.h>
#include<conio.h>
void main()
{
int i = 3 , *x;
float j = 1.5 , *y;
char k = 'c' , *z;
clrscr ( );
printf (“\n%d” , i);
printf (“\n%f ” , j);
printf (“\n%c” , k);
x = &i ;
y = &j ;
z = &k ;
printf (“\naddress of x = %u” , x);
printf (“\naddress of y = %u” , y);
printf (“\naddress of z = %u” , z);
x ++;
y++;
z++;
printf (“\nvalue of x = %u” , x);
printf (“\nvalue of y = %u” , y);
printf (“\nvalue of z = %u” , z);
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 86
BCA I

PROGRAM -81
Write a program to create structure that take roll no. and
name of student.(Structure).

Program:-
#include <stdio.h>
#include <conio.h>
struct student
{
char stname[20];
int stroll;
} s1;
void main()
{
printf(“Enter the student name : “);
gets(s1.stname);
printf(“Enter the roll number of student : “);
scanf(“%d”, &s1.stroll);
printf(“The name of student is %s and roll number is %d “,
s1.stname, s1.stroll);
getch();
}
OUTPUT:-

Janak Sahu P a g e | 87
BCA I

PROGRAM -82
Write a program to create structure that take roll no. and
name of student. (Union).

Program:-
#include <stdio.h>
#include <conio.h>
union student
{
char stname[20];
int stroll;
} s1;
void main()
{
printf("Enter the student name : ");
gets(s1.stname);
printf("The name of student is : %s\n", s1.stname);
printf("Enter the roll number of student : ");
scanf("%d", &s1.stroll);
printf("roll number is : %d \n", s1.stroll);
getch();
}
OUTPUT:-

Janak Sahu P a g e | 88
BCA I

PROGRAM -83
Write a program to demonstrate pointer in array.

Program:-
#include<stdio.h>
#include<conio.h>
void main( )
{
int i = 3;
int *j , **k ;
j = &i ;
k = &j ;
clrscr ( );
printf (“\naddress of i = %u” , &i);
printf (“\naddress of j = %u” , &j);
printf (“\naddress of k = %u", &k);
printf (“\nvalue of i = %d”, i);
printf (“\nvalue of j = %d” , *j);
printf (“\nvalue of k = %d” , **k);
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 89
BCA I

PROGRAM -84
Write a program copy the content of one file into another.
Program:-
#include<stdio.h>

#include<conio.h>
#include<string.h>
void main()
{
FILE *fp1 , *fp2;
char ch , fname1[20] , fname2[20];
clrscr ( );
printf (“enter source file name”);
gets (fname1);
printf (“enter new file name”);
gets (fname2);
fp1= fopen (fname1 , "r");
fp2 = fopen (fname2 , "w");
if (fp1==NULL)
{
printf (“nothing to write”);
}
do
{
ch = fgetc (fp1);
fputc (ch , fp2);
}
while(ch!=EOF);
fcloseall( );
getch ( );
}
OUTPUT:-

Janak Sahu P a g e | 90
BCA I

PROGRAM -85
Write a program to append a content of one file to another
file.
Program:-
#include<stdio.h>
#include<conio.h>
#include<string.h>
void main()
{
FILE *fp1 ,*fp2;
char ch , fname1[20] , fname2[20];
clrscr ( );
printf (“enter source file name”);
gets (fname1);
printf (“enter destinatiosn file name”);
gets (fname2);
fp1= fopen(fname1 ,"r");
fp2 = fopen(fname2 ,"a");
if (fp1==NULL)
{
printf (“nothing to write”);
}
do
{
ch= fgetc(fp1);
fputc(ch,fp2);
}
while(ch!=EOF);
fcloseall ( );
getch ( );
}
Output:-

Janak Sahu P a g e | 91