oj.uz

답안 #975911

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
975911 2024-05-06T03:13:41 Z Namkhing 봉쇄 시간 (IOI23_closing) C++17
0 / 100
 1000 ms 125192 KB 
#include "closing.h"
#include <bits/stdc++.h>
#define all(x) (x).begin(), (x).end()
#define ll long long
using namespace std;

typedef pair<int, int> pii;
const int inf = 1e9;

void dfs(int u, int p, vector<vector<pii>> &adj, vector<ll> &d, ll dis = 0) {
    d[u] = dis;
    for (pii x : adj[u]) {
        int v = x.first;
        int w = x.second;

        if (v != p) {
            dfs(v, u, adj, d, dis + w);
        }
    }
}

int max_score(int N, int X, int Y, ll K, vector<int> U, vector<int> V, vector<int> W) {
    vector<vector<pii>> adj(N);

    for (int i = 0; i < N - 1; i++) {
        adj[U[i]].push_back({V[i], W[i]});
        adj[V[i]].push_back({U[i], W[i]});
    }

    vector<ll> dx(N), dy(N);
    dfs(X, -1, adj, dx);
    dfs(Y, -1, adj, dy);

    vector<vector<ll>> c(N, vector<ll>(2));
    ll sum = 0;

    for (int i = 0; i < N; i++) {
        if (dx[i] > dy[i]) {
            swap(dx[i], dy[i]);
        }
        sum += dy[i];
    }

    K = min(K, sum);

    vector<int> dp(K + 1, -inf);
    dp[0] = 0;

    for (int i = 0; i < N; i++) {
        for (int j = K; j >= 0; j--) {
            if (j >= dx[i]) {
                dp[j] = max(dp[j], dp[j - dx[i]] + 1);
            }
            if (j >= dy[i]) {
                dp[j] = max(dp[j], dp[j - dy[i]] + 2);
            }
        }
    }

    int ans = 0;

    for (int i = 0; i <= K; i++) {
        ans = max(ans, dp[i]);
    }

    return ans;
}

Subtask #0
0.0 / 0.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 348 KB 2nd lines differ - on the 1st token, expected: '3', found: '4'
2 Halted 0 ms 0 KB -

Subtask #1
0.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 125 ms 77708 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #2
0.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Execution timed out 1063 ms 125192 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #3
0.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Execution timed out 1063 ms 125192 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #4
0.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Execution timed out 1063 ms 125192 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #5
0.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 348 KB 2nd lines differ - on the 1st token, expected: '3', found: '4'
2 Halted 0 ms 0 KB -

Subtask #6
0.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 348 KB 2nd lines differ - on the 1st token, expected: '3', found: '4'
2 Halted 0 ms 0 KB -

Subtask #7
0.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 348 KB 2nd lines differ - on the 1st token, expected: '3', found: '4'
2 Halted 0 ms 0 KB -

Subtask #8
0.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 348 KB 2nd lines differ - on the 1st token, expected: '3', found: '4'
2 Halted 0 ms 0 KB -

Subtask #9
0.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 348 KB 2nd lines differ - on the 1st token, expected: '3', found: '4'
2 Halted 0 ms 0 KB -