View Code of Problem 56

#include<stdio.h>
#include<math.h>
int main() {
 int a[3],b[3],h,m,s;
 int sum1,sum2,sum;
 scanf("%d:%d:%d",&a[0],&a[1],&a[2]);
 scanf("%d:%d:%d",&b[0],&b[1],&b[2]);
sum1=a[2]+a[1]*60+a[0]*3600;
sum2=b[2]+b[1]*60+b[0]*3600;
sum=fabs(sum1-sum2);
h=sum/3600;
m=(sum%3600)/60;
s=(sum%3600)%60;
printf("%d:%02d:%02d\n",h,m,s);
	return 0;
}