View Code of Problem 56

#include<stdio.h>
#include<math.h>
int main()
{
    int h1,m1,s1,t1;
    int h2,m2,s2,t2;
    int h,m,s,t;
    scanf("%d:%02d:%02d",&h1,&m1,&s1);
    scanf("%d:%02d:%02d",&h2,&m2,&s2);
    t1=h1*3600+m1*60+s1;
    t2=h2*3600+m2*60+s2;
    t=fabs(t1-t2);
    h=t/3600;
    m=t%3600/60;
    s=t%3600%60;
    printf("%d:%02d:%02d",h,m,s);
    return 0;
}