View Code of Problem 56

#include<stdio.h>
#include<math.h>
void main ()
{
    int a,b,c,a1,b1,c1,a2,b2,c2,d,q,i;

    scanf("%02d:%02d:%02d\n%02d:%02d:%02d",&a,&b,&c,&a1,&b1,&c1);
//    scanf("%02d:%02d:%02d",&a1,&b1,&c1);
    d=abs((a-a1)*3600+(b-b1)*60+c-c1);
    a2=d/3600;
    b2=(d-3600*a2)/60;
    c2=d-3600*a2-60*b2;
    printf("%d:%02d:%02d\n",a2,b2,c2);
}

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