oj.uz

Submission #757787

# Submission time Handle Problem Language Result Execution time Memory
757787 2023-06-13T18:28:19 Z taher Kitchen (BOI19_kitchen) C++17
72 / 100
 1000 ms 11256 KB 
#include <bits/stdc++.h>

using namespace std;

const int N = 300 * 300 + 5;
bool visited[305][N];

const int inf = 1000000000;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  bool found = false;
  int n, m, k;
  cin >> n >> m >> k;
  vector<int> a(n);
  int tot = 0;
  for (int i = 0; i < n; i++) {
    cin >> a[i];
    tot += a[i];
    if (a[i] < k) {
      found = true;
    }
  }
  vector<int> b(m);
  for (int i = 0; i < m; i++) {
    cin >> b[i];
  }
  int ans = inf;
  vector<int> long_ids;
  vector<int> short_ids;
  for (int i = 0; i < m; i++) {
    if (b[i] >= n) {
      long_ids.push_back(i);
    } else {
      short_ids.push_back(i);
    }
  }
  vector<int> ndp(N);
  ndp[0] = 1;
  for (int i = 0; i < (int) long_ids.size(); i++) {
    for (int it = N - 1 - b[long_ids[i]]; it >= 0; it--) {
      if (ndp[it] > 0) {
        ndp[it + b[long_ids[i]]] = max(ndp[it + b[long_ids[i]]], ndp[it] + 1);
      }
    }
  }
  for (int i = 0; i < N; i++) {
    if (ndp[i] > 0) --ndp[i];
  }
  function<void(int, int)> Rec = [&](int i, int sum) {
    if (i == (int) short_ids.size()) {
      if (sum >= max(n * k, tot)) {
        ans = min(ans, sum - tot);
        return ;
      }
      int ptr = tot - sum;
      while (ptr < N && sum + n * ndp[ptr] < n * k) ptr++;
      if (ptr < N && ndp[ptr] > 0) {
        ans = min(ans, sum + ptr - tot);
      }
      return ;
    }
    if (visited[i][sum]) {
      return ;
    }
    Rec(i + 1, sum + b[short_ids[i]]);
    Rec(i + 1, sum);
    visited[i][sum] = true;
    return ;
  };

  Rec(0, 0);
  if (ans < inf && !found) {
    cout << ans << '\n';
  } else {
    cout << "Impossible\n";
  }
  return 0;
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 596 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Correct 1 ms 580 KB Output is correct
4 Correct 1 ms 596 KB Output is correct
5 Correct 1 ms 596 KB Output is correct
6 Correct 2 ms 596 KB Output is correct
7 Correct 1 ms 596 KB Output is correct
8 Correct 2 ms 596 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 596 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Correct 1 ms 580 KB Output is correct
4 Correct 1 ms 596 KB Output is correct
5 Correct 1 ms 596 KB Output is correct
6 Correct 2 ms 596 KB Output is correct
7 Correct 1 ms 596 KB Output is correct
8 Correct 2 ms 596 KB Output is correct
9 Correct 2 ms 596 KB Output is correct
10 Correct 2 ms 584 KB Output is correct
11 Correct 3 ms 700 KB Output is correct
12 Correct 25 ms 728 KB Output is correct
13 Correct 172 ms 732 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 64 ms 10056 KB Output is correct
2 Correct 50 ms 7756 KB Output is correct
3 Correct 116 ms 8676 KB Output is correct
4 Correct 87 ms 6080 KB Output is correct
5 Correct 148 ms 11256 KB Output is correct
6 Correct 51 ms 6540 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 596 KB Output is correct
2 Correct 36 ms 856 KB Output is correct
3 Correct 86 ms 820 KB Output is correct
4 Correct 112 ms 800 KB Output is correct
5 Correct 101 ms 884 KB Output is correct

Subtask #5
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 596 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Correct 1 ms 580 KB Output is correct
4 Correct 1 ms 596 KB Output is correct
5 Correct 1 ms 596 KB Output is correct
6 Correct 2 ms 596 KB Output is correct
7 Correct 1 ms 596 KB Output is correct
8 Correct 2 ms 596 KB Output is correct
9 Correct 2 ms 596 KB Output is correct
10 Correct 2 ms 584 KB Output is correct
11 Correct 3 ms 700 KB Output is correct
12 Correct 25 ms 728 KB Output is correct
13 Correct 172 ms 732 KB Output is correct
14 Correct 64 ms 10056 KB Output is correct
15 Correct 50 ms 7756 KB Output is correct
16 Correct 116 ms 8676 KB Output is correct
17 Correct 87 ms 6080 KB Output is correct
18 Correct 148 ms 11256 KB Output is correct
19 Correct 51 ms 6540 KB Output is correct
20 Correct 6 ms 596 KB Output is correct
21 Correct 36 ms 856 KB Output is correct
22 Correct 86 ms 820 KB Output is correct
23 Correct 112 ms 800 KB Output is correct
24 Correct 101 ms 884 KB Output is correct
25 Correct 16 ms 680 KB Output is correct
26 Correct 19 ms 584 KB Output is correct
27 Correct 616 ms 1132 KB Output is correct
28 Execution timed out 1080 ms 2104 KB Time limit exceeded
29 Halted 0 ms 0 KB -