Submission #657381

#	Time	Username	Problem	Language	Result	Execution time	Memory
657381		bicsi	Kitchen (BOI19_kitchen)	C++14	100 / 100	44 ms	724 KiB

kitchen

#include <bits/stdc++.h>

using namespace std;

int main() {
  int n, m, k; cin >> n >> m >> k;

  int g = 0;
  for (int i = 0; i < n; ++i) {
    int ai; cin >> ai; 
    if (ai < k) {
      cout << "Impossible\n";
      return 0;
    }
    g += ai;
  }

  vector<int> dp(100000, -1e9);
  dp[0] = 0;
  int mx = 0;
  for (int i = 0; i < m; ++i) {
    int bi; cin >> bi;
    int val = min(bi, n);
    for (int j = mx; j >= 0; --j) 
      if (dp[j] >= 0)
        dp[j + bi] = max(dp[j + bi], dp[j] + val);
    mx += bi;
  }
  
  for (int i = g; i <= mx; ++i)
    if (dp[i] >= n * k) {
      cout << i - g << endl;
      return 0;
    }
  cout << "Impossible\n";

  return 0;
}

• Subtask 1: 9 / 9
• Subtask 2: 22 / 22
• Subtask 3: 20 / 20
• Subtask 4: 21 / 21
• Subtask 5: 28 / 28