题解 | #日期类#

#include <cstdio>
#include <iostream>
using namespace std;


int main() {
    int m;
    int mon_day[13] = {0,31,28,31,30,31,30,31,31,30,31,30,31};
    scanf("%d",&m);
    while (m--) {
        int year,mon,day;
        scanf("%d %d %d",&year,&mon,&day);
        if (12 == mon && 31 == day) {
            ++year;
            mon = 1;
            day = 1;
        }else if (day == mon_day[mon]) {
            ++mon;
            day = 1;
        }else {
            ++day;
        }
        printf("%04d-%02d-%02d\n",year,mon,day);
    }
}