第几天 - 蓝桥云课 (lanqiao.cn)

题目描述

题目分析

简单枚举（用k来记录经过的天数）

#include<bits/stdc++.h>
using namespace std;
bool is_ren(int n)
{if(n % 400 == 0 || (n % 4 == 0 && n % 100 != 0))return true;return false;
}
int m[13] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
int main()
{int y = 2000;if(is_ren(y))m[2] = 29;int k = 0, flag = 0;for(int i = 1; i <= 5; i ++){for(int j = 1; j <= m[i]; j ++){k ++;if(i == 5 && j == 4){cout << k;flag = 1;break;}}if(flag)break;}return 0;
}