第 18 題 - 解答

#include <stdio.h>

int main()

{

    int now_h, now_m, end_h, end_m, hour, minute;

    printf("目前時間：");

    scanf("%d:%d",&now_h,&now_m);

    printf("結束時間：");

    scanf("%d:%d",&end_h,&end_m);

    hour = end_h - now_h;

    minute = end_m - now_m;

    if(minute < 0){

	     minute = minute + 60;

	     hour = hour - 1;

    }

    if(hour < 0) hour = hour + 24;

    printf("剩下");

    if(hour != 0){

         printf("%d小時",hour);

         if(minute != 0)

             printf("%d分鐘",minute);

    }      

    else   

         printf("%d分鐘",minute);

    return 0;

}

#include <stdio.h>

int main()

{

    int now_h, now_m, end_h, end_m, hour, minute;

    scanf("%d:%d",&now_h,&now_m);

    scanf("%d:%d",&end_h,&end_m);

    hour = end_h - now_h;

    minute = end_m - now_m;

    if(minute < 0){

	     minute = minute + 60;

	     hour = hour - 1;

    }

    if(hour < 0) hour = hour + 24;

    if(hour != 0){

         printf("%d ",hour);

         if(minute != 0)

            printf("%d ",minute);

    }      

    else   

         printf("%d ",minute);

    return 0;

}