Submission #841919

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
841919	2023-09-02T08:34:25 Z	I_love_Hoang_Yen	Closing Time (IOI23_closing)	C++17	8 / 100	119 ms	36808 KB

closing

#include "closing.h"
#include <bits/stdc++.h>
using namespace std;

using ll = long long;
using Graph = vector<vector<pair<int,ll>>>;

void dfs(int u, int fu, const Graph& g, vector<ll>& dists) {
    for (auto [v, w] : g[u]) {
        if (v == fu) continue;
        assert(dists[v] < 0);

        dists[v] = dists[u] + w;
        dfs(v, u, g, dists);
    }
}

vector<ll> get_dists(int u, const Graph& g) {
    int n = g.size();
    vector<ll> dists(n, -1);
    dists[u] = 0;

    dfs(u, -1, g, dists);
    return dists;
}

// dists(x, y) > 2*k
int sub1(int n, const Graph& g, ll k,
        const vector<ll>& distsX,
        const vector<ll>& distsY) {
    vector<ll> dists;
    for (int i = 0; i < n; ++i) {
        dists.push_back(min(distsX[i], distsY[i]));
    }
    sort(dists.begin(), dists.end());

    int res = 0;
    for (auto d : dists) {
        if (d > k) break;
        k -= d;
        ++res;
    }
    return res;
}

int max_score(int n, int X, int Y, long long K,
              vector<int> U, vector<int> V, vector<int> W) {
    Graph g(n);
    assert(int(U.size()) == n-1);
    assert(int(V.size()) == n-1);
    assert(int(W.size()) == n-1);
    for (int i = 0; i < n - 1; i++) {
        int u = U[i];
        int v = V[i];
        int w = W[i];
        g[u].emplace_back(v, w);
        g[v].emplace_back(u, w);
    }

    auto distsX = get_dists(X, g);
    auto distsY = get_dists(Y, g);
    
    return sub1(n, g, K, distsX, distsY);
}

Subtask #0
0.0 / 0.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	0 ms	344 KB	1st lines differ - on the 1st token, expected: '6', found: '5'
2	Halted	0 ms	0 KB	-

Subtask #1
8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	112 ms	30668 KB	Output is correct
2	Correct	119 ms	36808 KB	Output is correct
3	Correct	65 ms	3000 KB	Output is correct

Subtask #2
0.0 / 9.0

#	Verdict	Memory	Grader output
1	Correct	344 KB	Output is correct
2	Incorrect	348 KB	1st lines differ - on the 1st token, expected: '30', found: '17'
3	Halted	0 KB	-

Subtask #3
0.0 / 12.0

#	Verdict	Memory	Grader output
1	Correct	344 KB	Output is correct
2	Incorrect	348 KB	1st lines differ - on the 1st token, expected: '30', found: '17'
3	Halted	0 KB	-

Subtask #4
0.0 / 14.0

#	Verdict	Memory	Grader output
1	Correct	344 KB	Output is correct
2	Incorrect	348 KB	1st lines differ - on the 1st token, expected: '30', found: '17'
3	Halted	0 KB	-

Subtask #5
0.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	0 ms	344 KB	1st lines differ - on the 1st token, expected: '6', found: '5'
2	Halted	0 ms	0 KB	-

Subtask #6
0.0 / 11.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	0 ms	344 KB	1st lines differ - on the 1st token, expected: '6', found: '5'
2	Halted	0 ms	0 KB	-

Subtask #7
0.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	0 ms	344 KB	1st lines differ - on the 1st token, expected: '6', found: '5'
2	Halted	0 ms	0 KB	-

Subtask #8
0.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	0 ms	344 KB	1st lines differ - on the 1st token, expected: '6', found: '5'
2	Halted	0 ms	0 KB	-

Subtask #9
0.0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	0 ms	344 KB	1st lines differ - on the 1st token, expected: '6', found: '5'
2	Halted	0 ms	0 KB	-

Submission #841919

Compilation message