oj.uz

Submission #953801

# Submission time Handle Problem Language Result Execution time Memory
953801 2024-03-26T17:09:38 Z nguyennh Bootfall (IZhO17_bootfall) C++14
13 / 100
 1000 ms 600 KB 
#include<bits/stdc++.h>
#define el '\n'
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
using namespace std ;

const int MN = 1e5 + 5;

int n;

namespace sub_trau{
  // check whether existing a way to divide array into 2 parts with sum = x;
  void solve(){
    vector<int> a(n + 5);
    for ( int i = 1 ; i <= n ; i++ ) cin >> a[i];
    if (n & 1){
      cout << 0;
      return;
    }
    bool odd = false , even = false;
    for ( int i = 1 ; i <= n ; i++ ){
      odd |= (a[i] & 1);
      even |= (a[i] % 2 == 0);
    }
    if (odd && even){
      cout << 0;
      return;
    }
    int sum = accumulate(a.begin() + 1 , a.begin() + n + 1 , 0);
    vector<int> ans , candidates;
    bitset<MN> bit;
    for ( int i = 1 ; i <= n ; i++ ) candidates.push_back(a[i]);
    for ( int val = odd ? 1 : 2 ; val <= sum ; val += 2 ){
      int all = sum + val;
      candidates.push_back(val);
      bool check = true;
      for ( int turn = 0 ; turn < n + 1 ; turn++ ){
        int need = all - candidates[turn];
        if (need & 1){
          check = false;
          break;
        }
        deque<int> cur;
        for ( int j = 0 ; j < candidates.size() ; j++ ){
          if (j == turn) continue;
          cur.push_back(candidates[j]);
        }
        cur.push_front(-1);
        bit.reset();
        bit[0] = 1;
        for ( int i = 1 ; i <= n ; i++ ) bit |= (bit << cur[i]); 
        if (!bit[need / 2]){
          check = false;
          break;
        }
      }
      if (check) ans.push_back(val);
      candidates.pop_back();
    }
    cout << ans.size() << el;
    for ( auto x : ans ) cout << x << " ";
  }
}

int32_t main (){
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cin >> n;
  sub_trau::solve();
}

Compilation message

bootfall.cpp: In function 'void sub_trau::solve()':
bootfall.cpp:44:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |         for ( int j = 0 ; j < candidates.size() ; j++ ){
      |                           ~~^~~~~~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 4 ms 600 KB Output is correct
5 Correct 62 ms 488 KB Output is correct
6 Correct 4 ms 344 KB Output is correct
7 Correct 3 ms 348 KB Output is correct
8 Correct 74 ms 488 KB Output is correct
9 Correct 0 ms 348 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 4 ms 600 KB Output is correct
5 Correct 62 ms 488 KB Output is correct
6 Correct 4 ms 344 KB Output is correct
7 Correct 3 ms 348 KB Output is correct
8 Correct 74 ms 488 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 45 ms 348 KB Output is correct
11 Correct 224 ms 348 KB Output is correct
12 Correct 19 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 229 ms 460 KB Output is correct
15 Correct 168 ms 348 KB Output is correct
16 Correct 226 ms 464 KB Output is correct
17 Correct 58 ms 348 KB Output is correct
18 Correct 137 ms 344 KB Output is correct
19 Correct 124 ms 464 KB Output is correct
20 Correct 51 ms 344 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 4 ms 600 KB Output is correct
5 Correct 62 ms 488 KB Output is correct
6 Correct 4 ms 344 KB Output is correct
7 Correct 3 ms 348 KB Output is correct
8 Correct 74 ms 488 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 45 ms 348 KB Output is correct
11 Correct 224 ms 348 KB Output is correct
12 Correct 19 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 229 ms 460 KB Output is correct
15 Correct 168 ms 348 KB Output is correct
16 Correct 226 ms 464 KB Output is correct
17 Correct 58 ms 348 KB Output is correct
18 Correct 137 ms 344 KB Output is correct
19 Correct 124 ms 464 KB Output is correct
20 Correct 51 ms 344 KB Output is correct
21 Execution timed out 1038 ms 344 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 4 ms 600 KB Output is correct
5 Correct 62 ms 488 KB Output is correct
6 Correct 4 ms 344 KB Output is correct
7 Correct 3 ms 348 KB Output is correct
8 Correct 74 ms 488 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 45 ms 348 KB Output is correct
11 Correct 224 ms 348 KB Output is correct
12 Correct 19 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 229 ms 460 KB Output is correct
15 Correct 168 ms 348 KB Output is correct
16 Correct 226 ms 464 KB Output is correct
17 Correct 58 ms 348 KB Output is correct
18 Correct 137 ms 344 KB Output is correct
19 Correct 124 ms 464 KB Output is correct
20 Correct 51 ms 344 KB Output is correct
21 Execution timed out 1038 ms 344 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 4 ms 600 KB Output is correct
5 Correct 62 ms 488 KB Output is correct
6 Correct 4 ms 344 KB Output is correct
7 Correct 3 ms 348 KB Output is correct
8 Correct 74 ms 488 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 45 ms 348 KB Output is correct
11 Correct 224 ms 348 KB Output is correct
12 Correct 19 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 229 ms 460 KB Output is correct
15 Correct 168 ms 348 KB Output is correct
16 Correct 226 ms 464 KB Output is correct
17 Correct 58 ms 348 KB Output is correct
18 Correct 137 ms 344 KB Output is correct
19 Correct 124 ms 464 KB Output is correct
20 Correct 51 ms 344 KB Output is correct
21 Execution timed out 1038 ms 344 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 4 ms 600 KB Output is correct
5 Correct 62 ms 488 KB Output is correct
6 Correct 4 ms 344 KB Output is correct
7 Correct 3 ms 348 KB Output is correct
8 Correct 74 ms 488 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 45 ms 348 KB Output is correct
11 Correct 224 ms 348 KB Output is correct
12 Correct 19 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 229 ms 460 KB Output is correct
15 Correct 168 ms 348 KB Output is correct
16 Correct 226 ms 464 KB Output is correct
17 Correct 58 ms 348 KB Output is correct
18 Correct 137 ms 344 KB Output is correct
19 Correct 124 ms 464 KB Output is correct
20 Correct 51 ms 344 KB Output is correct
21 Execution timed out 1038 ms 344 KB Time limit exceeded
22 Halted 0 ms 0 KB -