我想把输入的n个地毯信息先写到一个文件里，再读出最后要找的x,y,然后根据xy去找哪个地毯最终盖住了这块区域

#include<iostream>
#include<fstream>
using namespace std;
int main()
{
    int n;
    cin >> n;
    int a, b, c, d;
    ofstream outfile("temp.txt", ios::out);
    for (int i = 0;i < n;i++)
    {
        cin >> a >> b >> c >> d;
        outfile << a << " " << b << " " << c << " " << d << endl;
    }
    int x, y;
    cin >> x >> y;
    outfile.close();
    ifstream infile("temp.txt", ios::in);
    int overlap = -1;
    for (int i = 1;i <= n;i++)
    {
        infile >> a >> b >> c >> d;
        if (x >= a && y >= b && x < a + c && y < b + d) overlap = i;
    }
    infile.close();
    cout << overlap << endl;


    return 0;
}

然后喜提9个WA（哭 求助！真的没懂TAT