oj.uz

Submission #170426

# Submission time Handle Problem Language Result Execution time Memory
170426 2019-12-25T08:30:09 Z AlexLuchianov Detecting Molecules (IOI16_molecules) C++14
9 / 100
 2 ms 376 KB 
#include "molecules.h"
#include <algorithm>

using ll = long long;

int const nmax = 100000;

int v[1 + nmax];
int seen[1 + nmax], ind[1 + nmax];

bool compare(int x, int y){
  return v[x] < v[y];
}

std::vector<int> find_subset(int l, int u, std::vector<int> w) {
  std::vector<int> sol;
  int n = w.size();
  for(int i = 0; i < n; i++)
    v[i] = w[i];
  for(int i = 0; i < n; i++)
    ind[i] = i;
  std::sort(ind, ind + n, compare);

  ll sum1 = 0, sum2 = 0;

  for(int i = 0; i < n; i++){
    int pos1 = ind[i], pos2 = ind[n - 1 - i];

    seen[pos1] = 1;
    sum1 += w[pos1];
    sum2 += w[pos2];

    if(sum1 <= u && l <= sum2){
      int ptr = 0;
      while(sum1 < l){
        seen[ind[ptr]] = 0;
        seen[ind[n - 1 - ptr]] = 1;
        sum1 -= w[ind[ptr]];
        sum1 += w[ind[n - 1 - ptr]];
      }
      for(int i = 0; i < n; i++)
        if(seen[i] == 1)
          sol.push_back(i);
      return sol;
    }
  }
  return sol;
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB OK (n = 1, answer = NO)
2 Correct 2 ms 256 KB OK (n = 1, answer = NO)
3 Correct 2 ms 256 KB OK (n = 1, answer = YES)
4 Correct 2 ms 256 KB OK (n = 2, answer = YES)
5 Correct 2 ms 256 KB OK (n = 2, answer = YES)
6 Correct 2 ms 256 KB OK (n = 3, answer = YES)
7 Correct 2 ms 256 KB OK (n = 3, answer = YES)
8 Correct 2 ms 256 KB OK (n = 3, answer = YES)
9 Correct 2 ms 256 KB OK (n = 3, answer = YES)
10 Correct 2 ms 376 KB OK (n = 3, answer = YES)
11 Correct 2 ms 376 KB OK (n = 3, answer = YES)
12 Correct 2 ms 256 KB OK (n = 3, answer = YES)
13 Correct 2 ms 376 KB OK (n = 3, answer = NO)
14 Correct 2 ms 256 KB OK (n = 3, answer = YES)
15 Correct 2 ms 256 KB OK (n = 3, answer = YES)
16 Correct 2 ms 256 KB OK (n = 3, answer = NO)
17 Correct 2 ms 256 KB OK (n = 3, answer = NO)
18 Correct 2 ms 256 KB OK (n = 100, answer = NO)
19 Correct 2 ms 256 KB OK (n = 100, answer = YES)

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB sum of weights should be in [302..304] but it is 301
2 Halted 0 ms 0 KB -

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB OK (n = 1, answer = NO)
2 Correct 2 ms 256 KB OK (n = 1, answer = NO)
3 Correct 2 ms 256 KB OK (n = 1, answer = YES)
4 Correct 2 ms 256 KB OK (n = 2, answer = YES)
5 Correct 2 ms 256 KB OK (n = 2, answer = YES)
6 Correct 2 ms 256 KB OK (n = 3, answer = YES)
7 Correct 2 ms 256 KB OK (n = 3, answer = YES)
8 Correct 2 ms 256 KB OK (n = 3, answer = YES)
9 Correct 2 ms 256 KB OK (n = 3, answer = YES)
10 Correct 2 ms 376 KB OK (n = 3, answer = YES)
11 Correct 2 ms 376 KB OK (n = 3, answer = YES)
12 Correct 2 ms 256 KB OK (n = 3, answer = YES)
13 Correct 2 ms 376 KB OK (n = 3, answer = NO)
14 Correct 2 ms 256 KB OK (n = 3, answer = YES)
15 Correct 2 ms 256 KB OK (n = 3, answer = YES)
16 Correct 2 ms 256 KB OK (n = 3, answer = NO)
17 Correct 2 ms 256 KB OK (n = 3, answer = NO)
18 Correct 2 ms 256 KB OK (n = 100, answer = NO)
19 Correct 2 ms 256 KB OK (n = 100, answer = YES)
20 Incorrect 2 ms 376 KB sum of weights should be in [302..304] but it is 301
21 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB OK (n = 1, answer = NO)
2 Correct 2 ms 256 KB OK (n = 1, answer = NO)
3 Correct 2 ms 256 KB OK (n = 1, answer = YES)
4 Correct 2 ms 256 KB OK (n = 2, answer = YES)
5 Correct 2 ms 256 KB OK (n = 2, answer = YES)
6 Correct 2 ms 256 KB OK (n = 3, answer = YES)
7 Correct 2 ms 256 KB OK (n = 3, answer = YES)
8 Correct 2 ms 256 KB OK (n = 3, answer = YES)
9 Correct 2 ms 256 KB OK (n = 3, answer = YES)
10 Correct 2 ms 376 KB OK (n = 3, answer = YES)
11 Correct 2 ms 376 KB OK (n = 3, answer = YES)
12 Correct 2 ms 256 KB OK (n = 3, answer = YES)
13 Correct 2 ms 376 KB OK (n = 3, answer = NO)
14 Correct 2 ms 256 KB OK (n = 3, answer = YES)
15 Correct 2 ms 256 KB OK (n = 3, answer = YES)
16 Correct 2 ms 256 KB OK (n = 3, answer = NO)
17 Correct 2 ms 256 KB OK (n = 3, answer = NO)
18 Correct 2 ms 256 KB OK (n = 100, answer = NO)
19 Correct 2 ms 256 KB OK (n = 100, answer = YES)
20 Incorrect 2 ms 376 KB sum of weights should be in [302..304] but it is 301
21 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB OK (n = 1, answer = NO)
2 Correct 2 ms 256 KB OK (n = 1, answer = NO)
3 Correct 2 ms 256 KB OK (n = 1, answer = YES)
4 Correct 2 ms 256 KB OK (n = 2, answer = YES)
5 Correct 2 ms 256 KB OK (n = 2, answer = YES)
6 Correct 2 ms 256 KB OK (n = 3, answer = YES)
7 Correct 2 ms 256 KB OK (n = 3, answer = YES)
8 Correct 2 ms 256 KB OK (n = 3, answer = YES)
9 Correct 2 ms 256 KB OK (n = 3, answer = YES)
10 Correct 2 ms 376 KB OK (n = 3, answer = YES)
11 Correct 2 ms 376 KB OK (n = 3, answer = YES)
12 Correct 2 ms 256 KB OK (n = 3, answer = YES)
13 Correct 2 ms 376 KB OK (n = 3, answer = NO)
14 Correct 2 ms 256 KB OK (n = 3, answer = YES)
15 Correct 2 ms 256 KB OK (n = 3, answer = YES)
16 Correct 2 ms 256 KB OK (n = 3, answer = NO)
17 Correct 2 ms 256 KB OK (n = 3, answer = NO)
18 Correct 2 ms 256 KB OK (n = 100, answer = NO)
19 Correct 2 ms 256 KB OK (n = 100, answer = YES)
20 Incorrect 2 ms 376 KB sum of weights should be in [302..304] but it is 301
21 Halted 0 ms 0 KB -

Subtask #6
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB OK (n = 1, answer = NO)
2 Correct 2 ms 256 KB OK (n = 1, answer = NO)
3 Correct 2 ms 256 KB OK (n = 1, answer = YES)
4 Correct 2 ms 256 KB OK (n = 2, answer = YES)
5 Correct 2 ms 256 KB OK (n = 2, answer = YES)
6 Correct 2 ms 256 KB OK (n = 3, answer = YES)
7 Correct 2 ms 256 KB OK (n = 3, answer = YES)
8 Correct 2 ms 256 KB OK (n = 3, answer = YES)
9 Correct 2 ms 256 KB OK (n = 3, answer = YES)
10 Correct 2 ms 376 KB OK (n = 3, answer = YES)
11 Correct 2 ms 376 KB OK (n = 3, answer = YES)
12 Correct 2 ms 256 KB OK (n = 3, answer = YES)
13 Correct 2 ms 376 KB OK (n = 3, answer = NO)
14 Correct 2 ms 256 KB OK (n = 3, answer = YES)
15 Correct 2 ms 256 KB OK (n = 3, answer = YES)
16 Correct 2 ms 256 KB OK (n = 3, answer = NO)
17 Correct 2 ms 256 KB OK (n = 3, answer = NO)
18 Correct 2 ms 256 KB OK (n = 100, answer = NO)
19 Correct 2 ms 256 KB OK (n = 100, answer = YES)
20 Incorrect 2 ms 376 KB sum of weights should be in [302..304] but it is 301
21 Halted 0 ms 0 KB -