C语言报错，无法发现错误

Question

问题遇到的现象和发生背景

if语句报错

用代码块功能插入代码，请勿粘贴截图

#include <iostream>
using namespace std;
int main()
{
    int year = 0;
    cin >> year;
    if (year % 4 != 0)
        cout << "N";
    else
    {
        if (year % 100 != 0)

        {
            cout << "Y";
        }
        else
        {
            if (year % 400 == 0);
            {
                cout << "Y";
            }
            else
            {
                cout << "N";
            }
        }
    }
    return 0;

}

运行结果及报错内容

Answer 1