문제
풀이
#include <algorithm>
#include <iostream>
#include <queue>
using namespace std;
void solve(void) {
int n, m, k; cin >> n >> m >> k;
priority_queue<int> pq;
while (n--) {
int x; cin >> x;
pq.push(x);
}
long long ans = 0;
while (!pq.empty() && k) {
int x = pq.top(); pq.pop();
int t = max(1, min(x / m, k));
ans += min(x, t * m);
x -= min(x, t * m); k -= t;
if (x) pq.push(x);
}
cout << ans;
}
int main(void) {
ios::sync_with_stdio(false);
cin.tie(nullptr);
solve();
return 0;
}