oj.uz

Submission #824621

# Submission time Handle Problem Language Result Execution time Memory
824621 2023-08-14T08:20:14 Z LucaIlie Minerals (JOI19_minerals) C++17
40 / 100
 28 ms 2900 KB 
#include "minerals.h"
#include <bits/stdc++.h>

using namespace std;

const int MAX_N = 43000;
const int UNDEF = -1;
int pairr[2 * MAX_N + 1], perm[2 * MAX_N + 1];

void solve( vector <int> &v ) {
    int n = v.size() / 2, ln = n / 2;
    vector<int> left, right;

    if ( n == 1 ) {
        pairr[v[0]] = v[1];
        pairr[v[1]] = v[0];
        return;
    }

    for ( int i: v ) {
        if ( left.size() == ln * 2 || Query( perm[i] ) > ln ) {
            right.push_back( i );
            if ( left.size() < ln * 2 )
                Query( perm[i] );
        } else
            left.push_back( i );
    }
    for ( int i: left )
        Query( perm[i] );

    solve( left );
    solve( right );
}

void Solve( int n ) {
    vector<int> v;
    for ( int i = 1; i <= 2 * n; i++ ) {
        pairr[i] = UNDEF;
        v.push_back( i );
        perm[i] = i;
    }
    random_shuffle( perm + 1, perm + 1 + 2 * n );

    solve( v );
    for ( int i = 1; i <= 2 * n; i++ ) {
        if ( pairr[i] < i )
            Answer( perm[i], perm[pairr[i]] );
    }
}

Compilation message

minerals.cpp: In function 'void solve(std::vector<int>&)':
minerals.cpp:21:26: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   21 |         if ( left.size() == ln * 2 || Query( perm[i] ) > ln ) {
      |              ~~~~~~~~~~~~^~~~~~~~~
minerals.cpp:23:30: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   23 |             if ( left.size() < ln * 2 )
      |                  ~~~~~~~~~~~~^~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 2 ms 336 KB Output is correct
3 Correct 3 ms 464 KB Output is correct
4 Correct 6 ms 848 KB Output is correct
5 Correct 11 ms 1124 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 2 ms 336 KB Output is correct
7 Correct 3 ms 464 KB Output is correct
8 Correct 6 ms 848 KB Output is correct
9 Correct 11 ms 1124 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 8 ms 1064 KB Output is correct
12 Correct 15 ms 1284 KB Output is correct
13 Correct 14 ms 1212 KB Output is correct
14 Correct 11 ms 1132 KB Output is correct

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 2 ms 336 KB Output is correct
7 Correct 3 ms 464 KB Output is correct
8 Correct 6 ms 848 KB Output is correct
9 Correct 11 ms 1124 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 8 ms 1064 KB Output is correct
12 Correct 15 ms 1284 KB Output is correct
13 Correct 14 ms 1212 KB Output is correct
14 Correct 11 ms 1132 KB Output is correct
15 Incorrect 28 ms 2900 KB Wrong Answer [2]
16 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 2 ms 336 KB Output is correct
7 Correct 3 ms 464 KB Output is correct
8 Correct 6 ms 848 KB Output is correct
9 Correct 11 ms 1124 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 8 ms 1064 KB Output is correct
12 Correct 15 ms 1284 KB Output is correct
13 Correct 14 ms 1212 KB Output is correct
14 Correct 11 ms 1132 KB Output is correct
15 Incorrect 28 ms 2900 KB Wrong Answer [2]
16 Halted 0 ms 0 KB -

Subtask #6
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 2 ms 336 KB Output is correct
7 Correct 3 ms 464 KB Output is correct
8 Correct 6 ms 848 KB Output is correct
9 Correct 11 ms 1124 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 8 ms 1064 KB Output is correct
12 Correct 15 ms 1284 KB Output is correct
13 Correct 14 ms 1212 KB Output is correct
14 Correct 11 ms 1132 KB Output is correct
15 Incorrect 28 ms 2900 KB Wrong Answer [2]
16 Halted 0 ms 0 KB -

Subtask #7
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 2 ms 336 KB Output is correct
7 Correct 3 ms 464 KB Output is correct
8 Correct 6 ms 848 KB Output is correct
9 Correct 11 ms 1124 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 8 ms 1064 KB Output is correct
12 Correct 15 ms 1284 KB Output is correct
13 Correct 14 ms 1212 KB Output is correct
14 Correct 11 ms 1132 KB Output is correct
15 Incorrect 28 ms 2900 KB Wrong Answer [2]
16 Halted 0 ms 0 KB -

Subtask #8
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 2 ms 336 KB Output is correct
7 Correct 3 ms 464 KB Output is correct
8 Correct 6 ms 848 KB Output is correct
9 Correct 11 ms 1124 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 8 ms 1064 KB Output is correct
12 Correct 15 ms 1284 KB Output is correct
13 Correct 14 ms 1212 KB Output is correct
14 Correct 11 ms 1132 KB Output is correct
15 Incorrect 28 ms 2900 KB Wrong Answer [2]
16 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 2 ms 336 KB Output is correct
7 Correct 3 ms 464 KB Output is correct
8 Correct 6 ms 848 KB Output is correct
9 Correct 11 ms 1124 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 8 ms 1064 KB Output is correct
12 Correct 15 ms 1284 KB Output is correct
13 Correct 14 ms 1212 KB Output is correct
14 Correct 11 ms 1132 KB Output is correct
15 Incorrect 28 ms 2900 KB Wrong Answer [2]
16 Halted 0 ms 0 KB -