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Submission #1021647

# Submission time Handle Problem Language Result Execution time Memory
1021647 2024-07-13T01:13:56 Z 12345678 Chameleon's Love (JOI20_chameleon) C++17
40 / 100
 15 ms 860 KB 
#include "chameleon.h"
#include <bits/stdc++.h>
 
using namespace std;
 
const int nx=1e3+5;
 
int vs[nx], v[nx][nx];
vector<int> d[nx];
 
void Solve(int N) {
    for (int i=1; i<=2*N; i++) for (int j=1; j<i; j++) if (Query(vector<int> {i, j})==1) d[i].push_back(j), d[j].push_back(i);
    for (int i=1; i<=2*N; i++)
    {
        if (vs[i]) continue;
        if (d[i].size()==1)
        {
            Answer(i, d[i][0]);
            vs[i]=vs[d[i][0]]=1;
            continue;
        }
        bool f=0;
        for (int j=0; j<2; j++)
        {
            vector<int> qrs;
            qrs.push_back(i);
            for (int k=0; k<3; k++) if (k!=j) qrs.push_back(d[i][k]);
            if (Query(qrs)==1)
            {
                f=1;
                v[i][d[i][j]]=v[d[i][j]][i]=1;
                break;
            }
        }
        if (!f) v[i][d[i][2]]=v[d[i][2]][i]=1;
    }
    for (int i=1; i<=2*N; i++)
    {
        if (vs[i]) continue;
        int cnt=0;
        for (int j=0; j<3; j++) if (!v[i][d[i][j]]) cnt++;
        if (cnt>2) cout<<1/0;
        for (int j=0; j<3; j++) if (!vs[i]&&!vs[d[i][j]]&&!v[i][d[i][j]]) vs[i]=vs[d[i][j]]=1, Answer(i, d[i][j]);
    }
}

Compilation message

chameleon.cpp: In function 'void Solve(int)':
chameleon.cpp:42:27: warning: division by zero [-Wdiv-by-zero]
   42 |         if (cnt>2) cout<<1/0;
      |                          ~^~

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Incorrect 15 ms 484 KB Wrong Answer [3]
4 Halted 0 ms 0 KB -

Subtask #2
20.0 / 20.0

# 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 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 344 KB Output is correct

Subtask #3
20.0 / 20.0

# 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 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 1 ms 856 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 856 KB Output is correct
13 Correct 1 ms 600 KB Output is correct
14 Correct 1 ms 860 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 1 ms 732 KB Output is correct
17 Correct 2 ms 856 KB Output is correct
18 Correct 2 ms 856 KB Output is correct

Subtask #4
0 / 20.0

# 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 Incorrect 15 ms 344 KB Wrong Answer [3]
4 Halted 0 ms 0 KB -

Subtask #5
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Incorrect 15 ms 484 KB Wrong Answer [3]
4 Halted 0 ms 0 KB -