oj.uz

Submission #631008

# Submission time Handle Problem Language Result Execution time Memory
631008 2022-08-17T13:13:58 Z ZsofiaKeresztely Kpart (eJOI21_kpart) C++14
30 / 100
 2000 ms 660 KB 
#include <bits/stdc++.h>
using namespace std;

int main(){
  int t, n, sum, op;
  cin >> t;
  vector<int> a;
  vector<int> lasti;
  vector<bool> k;
  while (t--){
    cin >> n;
    a.resize(n);
    lasti.assign(50001, -1);
    k.assign(n+1, true);
    k[0] = false;
    for (int i=0; i<n; i++){
      cin >> a[i];
      for (int j=50000; j>=0; j--){
        if (lasti[j] != -1 && j + a[i] <= 50000){
          lasti[j + a[i]] = max(lasti[j + a[i]], lasti[j]);
        }
      }
      if (a[i] <= 50000){
        lasti[a[i]] = i;
      }
      sum = 0;
      for (int j=i; j>=0; j--){
        sum += a[j];
        if (sum % 2 || lasti[sum / 2] < j){
          k[i - j + 1] = false;
        }
      }
    }
    op = 0;
    for (int x : k){
      if (x){
        op++;
      }
    }
    cout << op << " ";
    for (int i=1; i<n+1; i++){
      if (k[i]){
        cout << i << " ";
      }
    }
    cout << "\n";
  }
  return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 468 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 56 ms 468 KB Output is correct
2 Correct 137 ms 512 KB Output is correct

Subtask #3
0 / 70.0

# Verdict Execution time Memory Grader output
1 Correct 306 ms 512 KB Output is correct
2 Correct 712 ms 512 KB Output is correct
3 Correct 808 ms 524 KB Output is correct
4 Correct 1233 ms 660 KB Output is correct
5 Execution timed out 2059 ms 556 KB Time limit exceeded
6 Halted 0 ms 0 KB -