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Submission #660323

# Submission time Handle Problem Language Result Execution time Memory
660323 2022-11-21T15:35:42 Z Dec0Dedd Information (CEOI08_information) C++14
42 / 100
 445 ms 19100 KB 
#include <bits/stdc++.h>

using namespace std;

#define pii pair<int, int>

const int N = 2e3+1;
const int M = 1e6+1;

bool us[M], vis[N];
vector<pii> G[N];
vector<int> l, r;
int n, m;

void dfs(int v) {
    vis[v]=true;
    for (auto u : G[v]) {
        if (vis[u.first]) continue;
        us[u.second]=true; l.push_back(u.second);
        dfs(u.first);
    }
}

void dfs2(int v) {
    vis[v]=true;
    for (auto u : G[v]) {
        if (vis[u.first] || us[u.second]) continue;
        r.push_back(u.second), dfs2(u.first);
    }
}

int main() {
    cin>>n>>m;
    for (int i=1; i<=m; ++i) {
        int a, b; cin>>a>>b;
        G[a].push_back({b, i});
    } dfs(1);
    memset(vis, false, sizeof(vis));
    dfs2(1);

    if ((int)l.size() < n-1 || (int)r.size() < n-1) cout<<-1<<"\n";
    else {
        for (auto u : l) cout<<u<<" ";
        cout<<"\n";
        for (auto u : r) cout<<u<<" ";
        cout<<"\n";
    }
}

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Failed 0 ms 340 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct

Subtask #4
0 / 4.0

# Verdict Execution time Memory Grader output
1 Failed 1 ms 360 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -

Subtask #5
0 / 4.0

# Verdict Execution time Memory Grader output
1 Failed 1 ms 340 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Failed 1 ms 340 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -

Subtask #7
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct

Subtask #8
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct

Subtask #9
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 340 KB Output is correct

Subtask #10
0 / 4.0

# Verdict Execution time Memory Grader output
1 Failed 4 ms 468 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -

Subtask #11
0 / 4.0

# Verdict Execution time Memory Grader output
1 Failed 2 ms 420 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -

Subtask #12
0 / 4.0

# Verdict Execution time Memory Grader output
1 Failed 1 ms 360 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -

Subtask #13
0 / 4.0

# Verdict Execution time Memory Grader output
1 Failed 1 ms 364 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -

Subtask #14
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct

Subtask #15
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 2184 KB Output is correct

Subtask #16
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 89 ms 3892 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -

Subtask #17
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 38 ms 2280 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -

Subtask #18
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 340 KB Output is correct
2 Incorrect 1 ms 360 KB Unexpected end of file - int32 expected
3 Halted 0 ms 0 KB -

Subtask #19
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 488 KB Output is correct

Subtask #20
0 / 4.0

# Verdict Execution time Memory Grader output
1 Failed 3 ms 468 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -

Subtask #21
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 445 ms 17516 KB Output is correct

Subtask #22
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 385 ms 17224 KB Output is correct

Subtask #23
0 / 5.0

# Verdict Execution time Memory Grader output
1 Failed 444 ms 19100 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -

Subtask #24
0 / 5.0

# Verdict Execution time Memory Grader output
1 Failed 3 ms 468 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -