View Code of Problem 56

#include <stdio.h>
#include <math.h>
int main()
{
        char s1[9],s2[9];
        gets(s1);gets(s2);
        int h1=s1[0]*10+s1[1],h2=s2[0]*10+s2[1];
        int m1=s1[3]*10+s1[4],m2=s2[3]*10+s2[4];
        int ss1=s1[6]*10+s1[7],ss2=s2[6]*10+s2[7];
        int t1=h1*3600+m1*60+ss1,t2=h2*3600+m2*60+ss2;
        int t=fabs(t2-t1);
        int h,m,s;
        h=t/3600;
        m=(t-h*3600)/60;
        s=(t-3600*h-60*m);
        printf("%d:%02d:%02d",h,m,s);
 
 
 
}