C程序练习

1.编程从键盘任意输入两个时间（例如4时55分和1时25分），计算并输出这两个时间之间的间隔。要求不输出时间差的负号。

#include<stdio.h>
int main()
{
    int hour1,minute1,hour2,minute2,hour3,minute3,time,time1,time2;
    printf("Input time one(hour, minute):");
    scanf("%d,%d",&hour1,&minute1);
    printf("Input time two(hour, minute):");
    scanf("%d,%d",&hour2,&minute2);

    time1=hour1*60+minute1;
    time2=hour2*60+minute2;
    if(time1>time2)
        time=time1-time2;
    else
        time=time2-time1;
    hour3=time/60;
    minute3=time%60;

    printf("%d hour %d minute\n",hour3,minute3);
    return 0;
}

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