题解 | 小乐乐定闹钟

#include <iostream>
using namespace std;

int main() {
    int hour, min, n;
    scanf("%d:%d %d", &hour, &min, &n);
    min = n % 60 + min;
    if (min >= 60) {
        hour = n / 60 + hour + 1;
        min -= 60;
    } else {
        hour = n / 60 + hour;

    }
    if (hour >= 24) {
        hour %= 24;
    }
    printf("%02d:%02d", hour, min);
}
// 64 位输出请用 printf("%lld")