#include <bits/stdc++.h>
using namespace std;
int main() {
int n, k;
double mx = -20100414;
bool flag = false;
cin >> n;
vector <double> a(n + 4), ans(n + 4), s(n + 4), mn(n + 4, 20100414);
for (k = 1; k <= n; k++) cin >> a[k];
for (k = n; k >= 2; k--) {
mn[k] = min(mn[k + 1], a[k]);
s[k] = s[k + 1] + a[k];
if (flag == true) ans[k] = (s[k] - 1 - mn[k]) * 1.0 / (n - k);
flag = true;
}
for (k = 2; k <= n - 1; k++) if (ans[k] > mx) mx = ans[k];
for (k = 2; k <= n - 1; k++) if (ans[k] == mx) cout << k - 1 << "\n";
return 0;
}
看了讨论区大佬们的提示, 还是不知道该怎么改
