编辑代码

#include <stdio.h>
int main () {
    int hour1,minute1;
    int hour2,minute2;

    scanf("%d,%d",&hour1,&minute1);
    scanf("%d,%d",&hour2,&minute2);

    int t1=hour1*60+minute1;
    int t2=hour2*60+minute2;

    int t=t2-t1;

    printf("时间差是%d小时%d分钟",t/60,t%60);
    return 0;
}