本地崩溃了，但是却能AC，为什么

#include<iostream>
#include<string.h>
#include<cmath>
#include<stdio.h>
#include<algorithm>
//#include<windows.h>
using namespace  std;
//int n,i,u[100010][100010];
int main(){
	long long int n,i,a[100010],b[100010],g[100010],k[100010];
	cin>>n;
	for(i=1;i<=n;i++){
//		int a,b,j,k,g;
		cin>>a[i]>>b[i]>>g[i]>>k[i];
	}
	int x,y,sum=0;
	cin>>x>>y;
	for(i=1;i<=n;i++){
		if(x<=a[i]+g[i]&&x>=a[i]&&y<=b[i]+k[i]&&y>=b[i]){
			sum=i;
		}
	}
	if(!sum)
	cout<<"-1";
	else
	cout<<sum;
//	system("pause");
//	cout<<u[x][y];
return 0;
}