Subject: PRF192- PFC
Workshop 05
Nguyen Anh Duy – SE160252
Exercise 1:
#include<stdio.h>
#include<stdlib.h>
#include<math.h>
int main()
{ int total, count , x , y ;
printf(" Dice Thrower\n ");
printf("============\n ");
do
{ printf("Total sought : "); scanf("%d",& total);
} while ( total < 2 || total > 12);
count = 0;
do
x = (rand() % 6) + 1;
y = (rand() % 6) + 1;
count ++;
printf("Result of throw %d: %d + %d\n",count , x , y);
} while (x+y != total);
if ( x+y == total){
printf ("You got your total in %d throws!",count);
}
return 0;
Exercise 2:
#include<stdio.h>
#include<stdlib.h>
#include<math.h>
int main()
{ int total, count , x , y ;
printf(" Ball Lottery \n ");
printf("============\n ");
do
{ printf("Total sought : "); scanf("%d",&total);
} while ( total < 2 || total > 20);
count = -1;
do
{ count += 2;
x = (rand() % 10) + 1;
y = (rand() % 10) + 1;
printf("Result of picks %d and %d: %d + %d\n",count, count + 1 , x , y);
} while (x+y != total);
if ( x+y == total){
printf ("You got your total in %d picks!",count+1);
return 0;
E400xercise 3:
#include<stdio.h>
#include<stdlib.h>
#include<math.h>
int main()
{ int total, count , x , y ;
printf(" Ball Lottery \n ");
printf("============\n ");#
do
{ printf("Total sought : ");
scanf("%d",&total);
} while ( total < 2 || total > 20);
count = -1;
do
{ count += 2;
x = (rand() % 10) + 1;
y = (rand() % 10) + 1;
printf("Result of picks %d and %d: %d +
%d\n",count, count + 1 , x , y);
} while (x+y != total);
if ( x+y == total){
printf ("You got your total in %d
picks!",count+1);
}
return 0;
}#include<stdio.h>
#include<stdlib.h>
int choice()
{ int choice ;
printf("\n1- Processing date data");
printf("\n2- Character data");
printf("\n3- Quit");
printf("\nChoose: ");
scanf("%d%*c",&choice);
return choice;
int validDate (int d, int m, int y){
int maxd=31;
if(d <1 || d>31 || m<1 || m >12) return 0 ;
if( m ==4 || m == 6 || m ==9 || m == 11) maxd = 30;
else if(m==2) {
if ( y%400==0 || y%4==0 && y%100!=0 ) maxd=29;
else maxd=28;
return d<=maxd;
}
void function1()
{ int d , m , y;
printf("Enter the day: " ); scanf("%d", &d);
printf("Enter the month:"); scanf("%d", &m);
printf("Enter the year: "); scanf("%d", &y);
if (validDate(d, m, y)==1) {
printf ("The date of %d/%d/%d is a valid date!\n", d, m ,y);
}else
printf("The date of %d/%d/%d is not a valid date!\n", d, m ,y);
void printAscii(char c1 , char c2)
{ char c;
if (c1 > c2)
{ c=c1 ; c1=c2 ;c2=c ;
for ( c=c1 ; c<= c2; c++)
printf("%c: %3d, %3Xh\n",c,c,c);
void function2()
{ char c1,c2;
printf(" Enter 2 characters contiguously: ");
scanf("%c%c",&c1, &c2);
printAscii(c1,c2);
}+
int main()
{ int userChoice;
do
{ userChoice = choice();
switch(userChoice)
{ case 1: function1(); break;
case 2: function2(); break;
default: printf("Bye!\n");
while(userChoice > 0 && userChoice < 3);
fflush(stdin);
getchar();
return 0;
Exercise 4:
#include<stdio.h>
#include<stdlib.h>
#include<math.h>
int choice()
{ int choice ;
printf("\n1- Quadratic equation ");
printf("\n2- Bank deposit problem");
printf("\n3- Quit");
printf("\nChoose: ");
scanf("%d%*c",&choice);
return choice;
void function1()
{ double number, squareRoot;
printf("Enter a number: ");
scanf("%lf", &number);
squareRoot = sqrt(number);
printf("Square root of %.0lf = %.0lf", number, squareRoot);
void function2()
{ double x , r ,P;
int y;
printf("Enter your deposit[a positive number]: ");scanf("%lf",&x);
printf("\nEnter the yearly rate[0.0-1.0]: "); scanf("%lf",&r);
printf("\nHow many years you want to deposit[year>0]:"); scanf("%d",&y);
P = x * pow((1+r),y);
printf("\nAmount at the %d year is %.0lf ",y,P);
int main()
{ int userChoice;
do
{ userChoice = choice();
switch(userChoice)
{ case 1: function1(); break;
case 2: function2(); break;
default: printf("Bye!\n");
while(userChoice > 0 && userChoice < 3);
fflush(stdin);
getchar();
return 0;
