题解 | #小乐乐定闹钟#

知识点：运算

#include <iostream>
using namespace std;

int main() {
    int now_hour = 0;
    int now_minute = 0;
    int k = 0;
    int clock_hour = 0;
    int clock_minute = 0;
    int temp_minute = 0;

    scanf("%d:%d %d", &now_hour, &now_minute, &k);
    // printf("%d:%d %d\n",now_hour,now_minute,k);

    temp_minute = now_hour * 60 + now_minute + k;
    clock_hour = temp_minute / 60;

    if (clock_hour >= 24) {
        clock_hour %= 24;
    }

    clock_minute = temp_minute % 60;

    printf("%02d:%02d\n", clock_hour, clock_minute);

    return 0;
}