Question

I made this C program to count change and make a slip saying the exact dollar and change amount given. every time I run the program it says the change given is 477256577 and i'm not sure what I have done wrong?

#include<stdio.h>
int main(void)
{
char first, last;
int pennies;
int nickels;
int dimes;
int quarters;
int loonies;
int change;
int t_dollars;
int t_cents;
printf("Type in your 2 initials and press return> ");
scanf("%c%c",&first,&last);
printf("%c%c please enter in your coin information.\n",first,last);
printf("Number of pennies>");
scanf("%d",&pennies);
printf("Number of nickels>");
scanf("%d",&dimes);
printf("Number of dimes>");
scanf("%d",&nickels);
printf("Number of quarters>");
scanf("%d",&quarters);
printf("Number of loonies>");
scanf("%d",&loonies);
t_cents=(1*pennies)+(5*nickels)+(10*dimes)+(25*quarters)+(100*loonies);
t_dollars=t_cents/100;
change=t_cents%100;
printf("Dollars:%d\nChange:%d"),t_dollars,change;
return (0);
}

Answer 1

The problem is with scanf and %c I changed it to a character array so that we can scan two initials easily and the code works.

#include<stdio.h>
int main()
{
char arr[2];
int pennies;
int nickels;
int dimes;
int quarters;
int loonies;
int change;
int t_dollars;
int t_cents;
printf("Type in your 2 initials and press return> ");
scanf("%s",arr);
printf("%s please enter in your coin information.\n",arr);
printf("Number of pennies>");
scanf("%d",&pennies);
printf("Number of nickels>");
scanf("%d",&dimes);
printf("Number of dimes>");
scanf("%d",&nickels);
printf("Number of quarters>");
scanf("%d",&quarters);
printf("Number of loonies>");
scanf("%d",&loonies);
t_cents=(1*pennies)+(5*nickels)+(10*dimes)+(25*quarters)+(100*loonies);
t_dollars=t_cents/100;
change=t_cents%100;
printf("Dollars:%d\nChange:%d",t_dollars,change);
return (0);
}