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Submission #976170

# Submission time Handle Problem Language Result Execution time Memory
976170 2024-05-06T09:03:40 Z efedmrlr Spring cleaning (CEOI20_cleaning) C++17
0 / 100
 31 ms 8024 KB 
// #pragma GCC optimize("O3,Ofast,unroll-loops")
// #pragma GCC target("avx2,bmi,popcnt")
#include <bits/stdc++.h>

#define lli long long int
#define ld long double
#define REP(i, n) for(int i = 0; (i) < (n); (i)++)
#define all(x) x.begin(), x.end();
#define rall(x) x.rbegin(), x.rend()
#define pb push_back
#define MP make_pair

using namespace std;

void fastio() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
}

const int N = 1e5 + 5;
const int INF = 1e9 + 500;
const int MOD = 1e9 + 7;
int n, q;
vector<vector<int> > adj(N, vector<int>());
void solve() {
    cin >> n >> q;
    REP(i, n - 1) {
        int u, v;
        cin >> u >> v;
        adj[u].pb(v);
        adj[v].pb(u);
    }
    bool f = (adj[1].size() > 1);
    REP(i, q) {
        int d;
        cin >> d;
        if(f) {
            if((n - 1) & 1) {
                cout << "-1\n";
            }
            else {
                cout << n - 1 << "\n";
            }
        }
        else {
            cout << n - 1 << "\n";
        }
    }
}

signed main() {
    fastio();
    solve();
}

Subtask #1
0 / 0.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 2896 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 2908 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 2904 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 6 ms 3672 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 19.0

# Verdict Execution time Memory Grader output
1 Incorrect 22 ms 6480 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 31 ms 8024 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 2896 KB Output isn't correct
2 Halted 0 ms 0 KB -