View Code of Problem 56

# include<stdio.h>
# include<math.h>
int main(void)
{
    int h1,m1,s1,h2,m2,s2,h3,m3,s3,sum1,sum2,sum;
    scanf("%d:%d:%d",&h1,&m1,&s1);
    scanf("%d:%d:%d",&h2,&m2,&s2);
    sum1 = h1*3600+m1*60+s1;
    sum2 = h2*3600+m2*60+s2;
    sum = abs(sum1-sum2);
    h3 = sum/3600;
    m3 = sum%3600/60;
    s3 = sum%3600%60;
    printf("%d:%02d:%02d\n",h3,m3,s3);
    return 0;
}

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