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Submission #758604

# Submission time Handle Problem Language Result Execution time Memory
758604 2023-06-15T00:17:07 Z DmitryKh Deblo (COCI18_deblo) C++14
45 / 90
 1000 ms 40528 KB 
#include <iostream>
#include <vector>
#include <list>
#include <map>

using namespace std;
using ll = long long;

ll DFS(int v,
       const vector<vector<int>>& E,
       const vector<int>& A,
       vector<bool>& V,
       map<int, vector<ll>>& TW) {
    ll S = A[v];
    TW[v].push_back(A[v]);
    V[v] = true;
    vector<int> VV;
    for (auto u : E[v]) {
        if (!V[u]) {
            S += DFS(u, E, A, V, TW);
            for (auto tw : TW[u]) {
                S += A[v]^tw;
                TW[v].push_back(A[v]^tw);
            }

            for (auto vv : VV) {
                for (auto l : TW[u]) {
                    for (auto r : TW[vv]) {
                        S += A[v]^l^r;
                    }
                }
            }

            VV.push_back(u);
        }
    }

    for (auto vv : VV) {
        TW.erase(vv);
    }

    return S;
}

int main(int argc, char* argv[]) {
    int n;
    cin >> n;
    vector<int> A(n + 1);
    for (int i = 1; i <= n; i++) {
        cin >> A[i];
    }

    vector<vector<int>> E(n + 1);
    for (int i = 0; i < n - 1; i++) {
        int u, v;
        cin >> u >> v;
        E[u].push_back(v);
        E[v].push_back(u);
    }

    {
        ll S = 0;
        map<int, vector<ll>> TW;
        {
            vector<bool> V(n + 1);
            S = DFS(1, E, A, V, TW);
        }

        /*for (int i = 1; i <= n; i++)
            cout << "S[" << i << "]=" << S[i] << '\n';*/

        cout << S << '\n';
    }

    return 0;
}

Subtask #1
45.0 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 5 ms 468 KB Output is correct
5 Correct 3 ms 340 KB Output is correct
6 Execution timed out 1093 ms 40508 KB Time limit exceeded
7 Execution timed out 1074 ms 40528 KB Time limit exceeded
8 Execution timed out 1083 ms 14740 KB Time limit exceeded
9 Execution timed out 1090 ms 11372 KB Time limit exceeded
10 Execution timed out 1082 ms 7832 KB Time limit exceeded