十分求调

#include<bits/stdc++.h>
using namespace std;
const int N = 114;
int n, a[N], cnt;
signed main(){
	cin >> n;
	for(int i = 1; i <= n; i++) cin >> a[i];
	sort(a + 1, a + 1 + n);
	for(int k = 1; k <= n; k++){
		for(int i = 1; i <= k; i++){
			for(int j = i; j <= k; j++){
				if(i != j && a[i] + a[j] == a[k]){goto l; cnt++;}
			}
		}
		l:;
	}
	cout << cnt;
	return 0;
}