oj.uz

Submission #841567

# Submission time Handle Problem Language Result Execution time Memory
841567 2023-09-01T17:08:54 Z LucaIlie Minerals (JOI19_minerals) C++17
90 / 100
 52 ms 3576 KB 
#include "minerals.h"
#include <bits/stdc++.h>

using namespace std;

const int MAX_N = 43000;
int pairr[2 * MAX_N + 1], perm[2 * MAX_N + 1];
bool inSet[2 * MAX_N + 1];
vector<int> firstt, secondd;
int ans = 0;

void solve( vector <int> &f, vector<int> &s ) {
    if ( f.size() == 1 && s.size() == 1 ) {
        pairr[s[0]] = f[0];
        return;
    }

    vector<int> fl, fr, sl, sr;

    int lis, ris;
    for ( int i = 0; i < f.size() / 2; i++ )
        lis += inSet[i];
    for ( int i = f.size() / 2; i < f.size(); i++ )
        ris += inSet[i];
    if ( lis < ris ) {
        for ( int i = 0; i < f.size() / 2; i++ )
            swap( f[i], f[i + f.size() / 2] );
    }

    int leftt = 0, rightt = 0;
    for ( int i = 0; i < f.size() / 2; i++ ) {
        if ( !inSet[f[i]] ) {
            ans = Query( f[i] );
            inSet[f[i]] = true;
        }
        fl.push_back( f[i] );
        leftt++;
    }
    for ( int i = f.size() / 2; i < f.size(); i++ ) {
        if ( inSet[f[i]] ) {
            ans = Query( f[i] );
            inSet[f[i]] = false;
        }
        fr.push_back( f[i] );
        rightt++;
    }

    random_shuffle( s.begin(), s.end() );
    for ( int i = 0; i < s.size(); i++ ) {
        if ( rightt == 0 ) {
            sl.push_back( s[i] );
            leftt--;
            continue;
        }
        if ( leftt == 0 ) {
            sr.push_back( s[i] );
            rightt--;
            continue;
        }

        int prevAns = ans;
        ans = Query( s[i] );
        inSet[s[i]] ^= 1;

        if ( ans == prevAns ) {
            sl.push_back( s[i] );
            leftt--;
        } else {
            sr.push_back( s[i] );
            rightt--;
        }
    }
    solve( fl, sl );
    solve( fr, sr );
}

void Solve( int n ) {
    for ( int i = 1; i <= 2 * n; i++ )
        perm[i] = i;
    random_shuffle( perm + 1, perm + 1 + 2 * n );

    int prevAns = 0;
    for ( int i = 1; i <= 2 * n; i++ ) {
        if ( firstt.size() == n ) {
            secondd.push_back( perm[i] );
            continue;
        }

        ans = Query( perm[i] );
        inSet[perm[i]] = true;
        if ( ans > prevAns )
            firstt.push_back( perm[i] );
        else
            secondd.push_back( perm[i] );
        prevAns = ans;
    }

    random_shuffle( firstt.begin(), firstt.end() );
    random_shuffle( secondd.begin(), secondd.end() );
    solve( firstt, secondd );

    for ( int i = 0; i < n; i++ )
        Answer( secondd[i], pairr[secondd[i]] );
}

Compilation message

minerals.cpp: In function 'void solve(std::vector<int>&, std::vector<int>&)':
minerals.cpp:21:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |     for ( int i = 0; i < f.size() / 2; i++ )
      |                      ~~^~~~~~~~~~~~~~
minerals.cpp:23:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |     for ( int i = f.size() / 2; i < f.size(); i++ )
      |                                 ~~^~~~~~~~~~
minerals.cpp:26:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |         for ( int i = 0; i < f.size() / 2; i++ )
      |                          ~~^~~~~~~~~~~~~~
minerals.cpp:31:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |     for ( int i = 0; i < f.size() / 2; i++ ) {
      |                      ~~^~~~~~~~~~~~~~
minerals.cpp:39:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |     for ( int i = f.size() / 2; i < f.size(); i++ ) {
      |                                 ~~^~~~~~~~~~
minerals.cpp:49:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 |     for ( int i = 0; i < s.size(); i++ ) {
      |                      ~~^~~~~~~~~~
minerals.cpp: In function 'void Solve(int)':
minerals.cpp:84:28: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   84 |         if ( firstt.size() == n ) {
      |              ~~~~~~~~~~~~~~^~~~
minerals.cpp: In function 'void solve(std::vector<int>&, std::vector<int>&)':
minerals.cpp:25:5: warning: 'ris' may be used uninitialized in this function [-Wmaybe-uninitialized]
   25 |     if ( lis < ris ) {
      |     ^~
minerals.cpp:25:5: warning: 'lis' may be used uninitialized in this function [-Wmaybe-uninitialized]

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 3 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 2 ms 600 KB Output is correct
3 Correct 4 ms 856 KB Output is correct
4 Correct 7 ms 1120 KB Output is correct
5 Correct 13 ms 1368 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 3 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 4 ms 856 KB Output is correct
8 Correct 7 ms 1120 KB Output is correct
9 Correct 13 ms 1368 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 9 ms 1028 KB Output is correct
12 Correct 15 ms 1596 KB Output is correct
13 Correct 19 ms 1368 KB Output is correct
14 Correct 19 ms 1512 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 3 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 4 ms 856 KB Output is correct
8 Correct 7 ms 1120 KB Output is correct
9 Correct 13 ms 1368 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 9 ms 1028 KB Output is correct
12 Correct 15 ms 1596 KB Output is correct
13 Correct 19 ms 1368 KB Output is correct
14 Correct 19 ms 1512 KB Output is correct
15 Correct 37 ms 3288 KB Output is correct
16 Correct 37 ms 3408 KB Output is correct
17 Correct 41 ms 3320 KB Output is correct
18 Correct 52 ms 3400 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 3 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 4 ms 856 KB Output is correct
8 Correct 7 ms 1120 KB Output is correct
9 Correct 13 ms 1368 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 9 ms 1028 KB Output is correct
12 Correct 15 ms 1596 KB Output is correct
13 Correct 19 ms 1368 KB Output is correct
14 Correct 19 ms 1512 KB Output is correct
15 Correct 37 ms 3288 KB Output is correct
16 Correct 37 ms 3408 KB Output is correct
17 Correct 41 ms 3320 KB Output is correct
18 Correct 52 ms 3400 KB Output is correct
19 Correct 42 ms 3412 KB Output is correct
20 Correct 39 ms 3408 KB Output is correct
21 Correct 37 ms 3416 KB Output is correct
22 Correct 37 ms 3148 KB Output is correct

Subtask #6
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 3 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 4 ms 856 KB Output is correct
8 Correct 7 ms 1120 KB Output is correct
9 Correct 13 ms 1368 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 9 ms 1028 KB Output is correct
12 Correct 15 ms 1596 KB Output is correct
13 Correct 19 ms 1368 KB Output is correct
14 Correct 19 ms 1512 KB Output is correct
15 Correct 37 ms 3288 KB Output is correct
16 Correct 37 ms 3408 KB Output is correct
17 Correct 41 ms 3320 KB Output is correct
18 Correct 52 ms 3400 KB Output is correct
19 Correct 42 ms 3412 KB Output is correct
20 Correct 39 ms 3408 KB Output is correct
21 Correct 37 ms 3416 KB Output is correct
22 Correct 37 ms 3148 KB Output is correct
23 Correct 40 ms 3488 KB Output is correct
24 Correct 40 ms 3280 KB Output is correct
25 Correct 38 ms 3304 KB Output is correct
26 Correct 39 ms 3364 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 3 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 4 ms 856 KB Output is correct
8 Correct 7 ms 1120 KB Output is correct
9 Correct 13 ms 1368 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 9 ms 1028 KB Output is correct
12 Correct 15 ms 1596 KB Output is correct
13 Correct 19 ms 1368 KB Output is correct
14 Correct 19 ms 1512 KB Output is correct
15 Correct 37 ms 3288 KB Output is correct
16 Correct 37 ms 3408 KB Output is correct
17 Correct 41 ms 3320 KB Output is correct
18 Correct 52 ms 3400 KB Output is correct
19 Correct 42 ms 3412 KB Output is correct
20 Correct 39 ms 3408 KB Output is correct
21 Correct 37 ms 3416 KB Output is correct
22 Correct 37 ms 3148 KB Output is correct
23 Correct 40 ms 3488 KB Output is correct
24 Correct 40 ms 3280 KB Output is correct
25 Correct 38 ms 3304 KB Output is correct
26 Correct 39 ms 3364 KB Output is correct
27 Correct 42 ms 3568 KB Output is correct
28 Correct 41 ms 3576 KB Output is correct
29 Correct 39 ms 3560 KB Output is correct
30 Correct 40 ms 3564 KB Output is correct

Subtask #8
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 3 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 4 ms 856 KB Output is correct
8 Correct 7 ms 1120 KB Output is correct
9 Correct 13 ms 1368 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 9 ms 1028 KB Output is correct
12 Correct 15 ms 1596 KB Output is correct
13 Correct 19 ms 1368 KB Output is correct
14 Correct 19 ms 1512 KB Output is correct
15 Correct 37 ms 3288 KB Output is correct
16 Correct 37 ms 3408 KB Output is correct
17 Correct 41 ms 3320 KB Output is correct
18 Correct 52 ms 3400 KB Output is correct
19 Correct 42 ms 3412 KB Output is correct
20 Correct 39 ms 3408 KB Output is correct
21 Correct 37 ms 3416 KB Output is correct
22 Correct 37 ms 3148 KB Output is correct
23 Correct 40 ms 3488 KB Output is correct
24 Correct 40 ms 3280 KB Output is correct
25 Correct 38 ms 3304 KB Output is correct
26 Correct 39 ms 3364 KB Output is correct
27 Correct 42 ms 3568 KB Output is correct
28 Correct 41 ms 3576 KB Output is correct
29 Correct 39 ms 3560 KB Output is correct
30 Correct 40 ms 3564 KB Output is correct
31 Correct 44 ms 3572 KB Output is correct
32 Correct 41 ms 3572 KB Output is correct
33 Correct 40 ms 3508 KB Output is correct
34 Correct 45 ms 3384 KB Output is correct

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 3 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 4 ms 856 KB Output is correct
8 Correct 7 ms 1120 KB Output is correct
9 Correct 13 ms 1368 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 9 ms 1028 KB Output is correct
12 Correct 15 ms 1596 KB Output is correct
13 Correct 19 ms 1368 KB Output is correct
14 Correct 19 ms 1512 KB Output is correct
15 Correct 37 ms 3288 KB Output is correct
16 Correct 37 ms 3408 KB Output is correct
17 Correct 41 ms 3320 KB Output is correct
18 Correct 52 ms 3400 KB Output is correct
19 Correct 42 ms 3412 KB Output is correct
20 Correct 39 ms 3408 KB Output is correct
21 Correct 37 ms 3416 KB Output is correct
22 Correct 37 ms 3148 KB Output is correct
23 Correct 40 ms 3488 KB Output is correct
24 Correct 40 ms 3280 KB Output is correct
25 Correct 38 ms 3304 KB Output is correct
26 Correct 39 ms 3364 KB Output is correct
27 Correct 42 ms 3568 KB Output is correct
28 Correct 41 ms 3576 KB Output is correct
29 Correct 39 ms 3560 KB Output is correct
30 Correct 40 ms 3564 KB Output is correct
31 Correct 44 ms 3572 KB Output is correct
32 Correct 41 ms 3572 KB Output is correct
33 Correct 40 ms 3508 KB Output is correct
34 Correct 45 ms 3384 KB Output is correct
35 Incorrect 44 ms 3444 KB Wrong Answer [2]
36 Halted 0 ms 0 KB -