prac No 1: Average of three Numbers
#include <iostream>
#include<conio.h>
void main()
{
int a,b,c;
float avg;
cout<<”Enter 3 Numbers”;
cin>>a>>b>>c;
avg=(a+b+c)/3;
cout<<”\n Average=”<<avg;
getch();
}
prac NO 2:To calculate Simple Interest (SI=pnr/100)
#include <iostream>
#include<conio.h>
void main()
{
int p,n;
float r,si;
cout<<”\n Enter Principal Amount”;
cin>>p;
cout<<”\n Enter No of years”;
cin>>n;
cout<<”\n Enter Rate of Interest”;
cin>>r;
si=(p*n*r)/100;
cout<<”\n Simple Interest=”<<si;
getch();
}
Prac No 3: To Compute Area and Perimeter of Rectangle
#include <iostream>
#include<conio.h>
void main()
{
int l,b,p,a;
cout<<”\n Enter Length and Breadth”;
cin>>l>>b;
p=2*(l+b);
cout<<”\n Perimeter=”<<p;
a=l*b;
cout<<”\nArea=”<<a;
getch();
}
Prac No 4: To Find Sum of Individual digits:
#include<conio.h>
#include<iostream.h>
void main()
{
int d1,d2,d3,d4,d5,sum,number,n;
clrscr();
cin>>number;
cout<<"\n number"<<number;
n=number;
d1=n%10;
n=n/10;
d2=n%10;
n=n/10;
d3=n%10;
n=n/10;
d4=n%10;
n=n/10;
d5=n;
sum=d1+d2+d3+d4+d5;
cout<<"\n sum="<<sum;
getch();
}
prac No 5: To Convert a given Temperature in Celsius to Fahrenheit by using Formula
#include <iostream.h>
#include<conio.h>
void main() {
float fahren, celsius;
cout << "Enter the temperature in celsius\n";
cin >> celsius;
fahren =1.8 * celsius + 32;
cout << celsius <<"Centigrade is equal to " << fahren <<"Fahrenheit";
getch();
}
prac no 6:To calculate Gross Salary
#include<iostream.h>
#include<conio.h>
void main()
{
float basic,gross,da,hra;
cout<<"Enter Basic Salary of an employee:";
cin>>basic:
da=basic*0.4;
hra=basic*0.2;
gross=basic+hra+da;
cout<<"\n\t Basic Pay................"<<basic;
cout<<"\n\t Dearness Allowance......."<<da<<endl;
cout<<"\t House Rent Allowance......."<<hra<<endl;
cout<<"\t----------------"<<endl;
cout<<"\t Gross Salary.........."<<gross<<endl;
cout<<"\t----------------"<<endl;
getch();
}
Prac No 7: To Swap Two Numbers
#include<iostream.h>
#include<conio.h>
void main()
{
int a = 2, b = 3;
cout << "Before swaping a = " <<a << " , b = " << b << endl;
int temp;
temp = a;
a = b;
b = temp;
cout << "After swaping a = " << a << " , b = " << b << endl;
getch();}
prac no 8
Program to check whether an integer is positive, negative or zero
#include <iostream>
#include<conio.h>
void main()
{
int number;
cout << "Enter an integer: ";
cin >> number;
if (number > 0)
{
cout << "You entered a positive integer: " << number << endl;
}
else if (number < 0)
{
cout << "You entered a negative integer: " << number << endl;
}
else
{
cout << "You entered 0." << endl;
}
cout << "This line is always printed.";
getch();
}
prac no 9Write a C++ program to find largest among three numbers
#include<iostream.h>
#include<conio.h>
void main()
{
int a, b, c;
clrscr();
cout<<"enter 3 nos:";
cin>>a>>b>>c;
if(a>b&&a>c)
cout<<"max is :"<<a<<endl;
if (b>a&&b>c)
cout<<"max is:"<<b<<endl;
if(c>a&&c>b)
cout<<"max is :"<<c<<endl;
getch();
}
prac No:10 Calculate percentage and print result using Else---if Ladder
#include<iostream.h>
#include<conio.h>
void main()
{
clrscr();
int p,c,m,cs,rollno,total;
float per;
cout<<"\nEnter Roll No";
cin>>rollno;
cout<<"\n Enter Marks of 4 subjects";
cin>>p>>c>>m>>cs;
total=p+c+m+cs;
cout<<"\n Total="<<total;
per=total/4.0;
cout<<"\n Percentage="<<per;
if(per>=80&&per<100)
cout<<"\n Distinction";
else if(per>=60&&per<80)
cout<<"\n First class";
else if(per>=40&&per<60)
cout<<"\n Second class";
else if(per>=35&&per<40)
cout<<"\n Third class";
else
cout<<"\n Fail";
getch();
}
Prac No 11:Use of Scope Resolution Operator
#include<iostream.h>
#include <conio.h>
int m=10;
void main()
{
int m=20;
clrscr();
{
int k=m;
int m=30;
cout<<"we are in inner block\n";
cout<<"k="<<k<<"\n";
cout<<"local m="<< m<< "\n";
cout<<"global m="<<::m<<"\n";
getch();
}
}
