题解

#include<bits/stdc++.h>
using namespace std;
int p[105];
int main(){
	int n,sum = 0,ans = 0;
	double c;
	cin >> n;
	for(int i = 1;i <= n;i++)
		cin >> p[i];
	for(int i = 1;i <= n;i++){
		sum = p[i];
		for(int j = i + 1;j <= n;j++){
			sum += p[j];
			c = 1.0 * sum / (j - i + 1);
			for(int k = i;k <= j;k++){
				if(p[k] == c){
					ans++;
					break;
				}
			}
		}
	}
	cout << ans + n;
	return 0;
}