AC代码： #include<cstdio> (5862)#include<vector> using namespace std; int main() { int n, p, b, res = 0; vector<int> sum(1, 0); scanf("%d %d", &n, &b); for (int i = 0; i < n; i++) { scanf("%d", &p); sum.push_back(p + sum.back()); } for (int i = 0; i <= n; i++) for (int j = i + 1; j <= n; j++) if ((sum[j] - sum[i]) / (j - i) >= b) res++; printf("%d", res); return 0; }