oj.uz

Submission #757798

# Submission time Handle Problem Language Result Execution time Memory
757798 2023-06-13T18:35:15 Z taher Kitchen (BOI19_kitchen) C++17
72 / 100
 1000 ms 11260 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC target("avx,avx2,fma")
 
using namespace std;
 
const int N = 300 * 300 + 5;
bool visited[305][N];
int ndp[N];

const int maxN = 305;
int a[maxN], b[maxN];
 
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;
  int tot = 0;
  for (int i = 0; i < n; i++) {
    cin >> a[i];
    tot += a[i];
    if (a[i] < k) {
      found = true;
    }
  }
  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);
    }
  }
 
  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 (visited[i][sum]) {
      return ;
    }
    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 ;
    }
    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 596 KB Output is correct
4 Correct 1 ms 596 KB Output is correct
5 Correct 1 ms 596 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 1 ms 596 KB Output is correct
8 Correct 1 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 596 KB Output is correct
4 Correct 1 ms 596 KB Output is correct
5 Correct 1 ms 596 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 1 ms 596 KB Output is correct
8 Correct 1 ms 596 KB Output is correct
9 Correct 1 ms 596 KB Output is correct
10 Correct 2 ms 596 KB Output is correct
11 Correct 2 ms 596 KB Output is correct
12 Correct 26 ms 732 KB Output is correct
13 Correct 117 ms 760 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 123 ms 10088 KB Output is correct
2 Correct 57 ms 7748 KB Output is correct
3 Correct 177 ms 8840 KB Output is correct
4 Correct 113 ms 6076 KB Output is correct
5 Correct 192 ms 11260 KB Output is correct
6 Correct 56 ms 6532 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 596 KB Output is correct
2 Correct 19 ms 724 KB Output is correct
3 Correct 58 ms 724 KB Output is correct
4 Correct 90 ms 764 KB Output is correct
5 Correct 71 ms 756 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 596 KB Output is correct
4 Correct 1 ms 596 KB Output is correct
5 Correct 1 ms 596 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 1 ms 596 KB Output is correct
8 Correct 1 ms 596 KB Output is correct
9 Correct 1 ms 596 KB Output is correct
10 Correct 2 ms 596 KB Output is correct
11 Correct 2 ms 596 KB Output is correct
12 Correct 26 ms 732 KB Output is correct
13 Correct 117 ms 760 KB Output is correct
14 Correct 123 ms 10088 KB Output is correct
15 Correct 57 ms 7748 KB Output is correct
16 Correct 177 ms 8840 KB Output is correct
17 Correct 113 ms 6076 KB Output is correct
18 Correct 192 ms 11260 KB Output is correct
19 Correct 56 ms 6532 KB Output is correct
20 Correct 2 ms 596 KB Output is correct
21 Correct 19 ms 724 KB Output is correct
22 Correct 58 ms 724 KB Output is correct
23 Correct 90 ms 764 KB Output is correct
24 Correct 71 ms 756 KB Output is correct
25 Correct 11 ms 596 KB Output is correct
26 Correct 14 ms 692 KB Output is correct
27 Correct 406 ms 1132 KB Output is correct
28 Correct 811 ms 2212 KB Output is correct
29 Correct 55 ms 588 KB Output is correct
30 Execution timed out 1087 ms 4064 KB Time limit exceeded
31 Halted 0 ms 0 KB -