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OI-codes/Luogu/P1109/P1109.cpp

28 lines
511 B
C++

#include <bits/stdc++.h>
using namespace std;
int main() {
int n, a[55], l, r;
int p = 0, q = 0, sum = 0;
cin >> n;
for (int i = 0; i < n; i++) {
cin >> a[i];
sum += a[i];
}
cin >> l >> r;
for (int i = 0; i < n; i++) {
if (a[i] > r) {
p += a[i] - r;
} else if (a[i] < l) {
q += l - a[i];
}
}
if (n * r < sum) {
cout << -1 << endl;
} else {
cout << max(p, q) << endl;
}
return 0;
}