C++问题求帮写！！

Question

问题遇到的现象和发生背景

用代码块功能插入代码，请勿粘贴截图

Answer 1

c++编译环境vs2017

#include<iostream>
using namespace std;
int panduan(int month, int year) {
    if (month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12)
        return 31;
    else if (month == 4 || month == 6 || month == 9 || month == 11)
        return 30;
    else if (month == 2) {
        if (year % 400 == 0 || (year % 4 == 0 && year % 100 != 0))
            return 29;
        else
            return 28;
    }
}
int main() {
    int count[7] = { 0 };
    int n, i, j, day, d = 0, k;
    cin >> n;
    for (i = 1900; i <= 1900 + n - 1; i++) {
        for (j = 1; j <= 12; j++) {
            day = panduan(j, i);//循环1-7，d对应星期几
            for (k = 1; k <= day; k++) {
                d = d + 1;
                if (d == 8)
                    d = 1;
                if (k == 13)
                    count[d - 1]++;//13号时d是星期几 计数
            }
        }
    }
    cout << "" << count[0];
    cout << " " << count[1];
    cout << " " << count[2];
    cout << " " << count[3];
    cout << " " << count[4];
    cout << " " << count[5];
    cout << " " << count[6];
    return 0;
}