原题链接
P5716 【深基3.例9】月份天数
ac代码
#include <iostream>
using namespace std;
int a[13] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; //打表
int main() {
int year, month;
cin >> year >> month;
if ((year % 4 == 0 && year % 100 != 0) || n % 400 == 0)
a[2] = 29;//先变
cout << a[month];//直接输出
return 0;
}