题解 | #魔导师晨拥#

数据范围很小，模拟即可。

#include <bits/stdc++.h>
using namespace std;



void solve(){
    int n, m;
    cin >> n >> m;
    vector<int> hp(n + 5);
    for (int i = 1; i <= n; i++) cin >> hp[i];
    int dmg = 2;
    int ans = 0;
    while (m--) {
        for (int i = 1; i <= n; i++) {
            hp[i] -= dmg;
            if (hp[i] == 0) dmg++;
        }
        ans += dmg;
    }
    cout << ans;
}

signed main(){
    ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
    int _T = 1;
    // cin >> _T;
    while (_T--){ 
        solve();
    }
    return 0;
}