题解 | #小乐乐定闹钟#

#include <stdio.h>

int main() {
    int hour ,minute ,k;
    int hour1,minute1;
    scanf("%d:%d %d",&hour,&minute,&k);
    minute=minute+k;
        if(minute>=60)
        {
            hour1=hour+minute/60;因为hour要得到保留所以创建一个hour1
            minute=minute%60;
            hour1=hour1%24;
        }
        else
        {
            minute=minute+k;
        }
        printf("%02d:%02d",hour1,minute);
    return 0;
}