wa了很多，求条

#include<bits/stdc++.h>
using namespace std;
vector<int> nums(1000001);//稍微开的大一点

int main() {
	int n, m;
	cin >> n >> m;
	for (int i = 1; i <= n; i++) {
		cin >> nums[i];
	}
	int maxn = INT_MIN;
	for (int i = 1; i <= m; i++) {
		int x, y;
		cin >> x >> y;
		maxn = max(max(x, y), maxn);//比较三个数的大小的方法
	}
	printf("%d\n", nums[maxn]);
	return 0;
}