oj.uz

답안 #998748

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
998748 2024-06-14T15:53:31 Z mdn2002 봉쇄 시간 (IOI23_closing) C++17
43 / 100
 933 ms 86100 KB 
/*
Mayoeba Yabureru
*/
#include "closing.h"
#include<bits/stdc++.h>
using namespace std;

int max_score(int n, int x, int y, long long k, vector<int> U, vector<int> V, vector<int> W) {
    x ++, y ++;
    vector dis(n + 1, vector<long long>(2));
    vector<vector<pair<int, long long>>> gr(n + 1);

    for (int i = 0; i < n - 1; i ++) {
        int u = U[i] + 1, v = V[i] + 1, w = W[i];
        gr[u].push_back({v, w});
        gr[v].push_back({u, w});
    }

    function<void(int, int, int)> dfs = [&] (int v, int p, int wt) {
        for (auto [u, w] : gr[v]) {
            if (u == p) continue;
            dis[u][wt] = dis[v][wt] + w;
            dfs(u, v, wt);
        }
    };
    dfs(x, 0, 0), dfs(y, 0, 1);

    long long minstart = 0, min = 1e15;
    for (int i = 1; i <= n; i ++) {
        if (max(dis[i][0], dis[i][1]) < min) {
            minstart = i;
            min = max(dis[i][0], dis[i][1]);
        }
    }

    multiset<pair<long long, int>> ms;

    vector<int> did(n + 1);
    int ans = 0;

    function f = [&] {
        multiset<pair<long long, int>> s;
        for (int i = 1; i <= n; i ++) {
            if (did[i]) continue;
            s.insert({dis[i][0], i});
            s.insert({dis[i][1], i});
        }
        int cnt = 0;
        vector<int> v;
        function<void(int, int)> go = [&] (int xx, int p) {
            v.push_back(xx);
            if (xx == x) {
                for (auto u : v) {
                    if (did[u] == 0) {
                        did[u] = 1;
                        k -= dis[u][0];
                        cnt ++;
                    }
                }
            }
            if (xx == y) {
                for (auto u : v) {
                    if (did[u] == 0) {
                        did[u] = 1;
                        k -= dis[u][1];
                        cnt ++;
                    }
                }
            }
            for (auto [u, w] : gr[xx]) {
                if (u == p) continue;
                go(u, xx);
            }
            v.pop_back();
        };
        if (s.size() != 2 * n) go(minstart, 0);

        while (s.size()) {
            auto [x, y] = *s.begin();
            s.erase(s.begin());
            if (did[y]) continue;
            if (x > k) break;
            k -= x;
            did[y] = 1;
            cnt ++;
        }
        if (k >= 0) return cnt;
        return -100000000;
    };

    long long kk = k;
    ans = f();

    for (int i = 1; i <= n; i ++) did[i] = 0;
    int cnt = 0;
    k = kk;

    for (int i = 1; i <= n; i ++) ms.insert({max(dis[i][0], dis[i][1]), i});

    while (ms.size()) {
        vector<int> odid = did;
        long long kk = k;
        ans = max(ans, cnt + f());

        did = odid;
        k = kk;
        auto [x, y] = *ms.begin();
        ms.erase(ms.begin());
        if (x > k) break;
        k -= x;
        did[y] = 2;
        cnt += 2;
    }

    return ans;
}
/*
2
7 0 2 10
0 1 2
0 3 3
1 2 4
2 4 2
2 5 5
5 6 3

4 0 3 20
0 1 18
1 2 1
2 3 19
*/

Compilation message

closing.cpp: In lambda function:
closing.cpp:76:22: warning: comparison of integer expressions of different signedness: 'std::multiset<std::pair<long long int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   76 |         if (s.size() != 2 * n) go(minstart, 0);
      |             ~~~~~~~~~^~~~~~~~

Subtask #0
0.0 / 0.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 637 ms 77844 KB Output is correct
2 Correct 601 ms 86100 KB Output is correct
3 Correct 175 ms 3152 KB Output is correct

Subtask #2
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct

Subtask #3
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 2 ms 348 KB Output is correct
19 Correct 17 ms 604 KB Output is correct
20 Correct 2 ms 600 KB Output is correct
21 Correct 17 ms 600 KB Output is correct
22 Correct 1 ms 604 KB Output is correct
23 Correct 17 ms 604 KB Output is correct
24 Correct 14 ms 656 KB Output is correct

Subtask #4
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 2 ms 348 KB Output is correct
19 Correct 17 ms 604 KB Output is correct
20 Correct 2 ms 600 KB Output is correct
21 Correct 17 ms 600 KB Output is correct
22 Correct 1 ms 604 KB Output is correct
23 Correct 17 ms 604 KB Output is correct
24 Correct 14 ms 656 KB Output is correct
25 Correct 12 ms 344 KB Output is correct
26 Correct 921 ms 1696 KB Output is correct
27 Correct 9 ms 1628 KB Output is correct
28 Correct 933 ms 1628 KB Output is correct
29 Correct 887 ms 1624 KB Output is correct
30 Correct 3 ms 1624 KB Output is correct
31 Correct 661 ms 1828 KB Output is correct
32 Correct 703 ms 1824 KB Output is correct

Subtask #5
0.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Incorrect 0 ms 348 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
8 Halted 0 ms 0 KB -

Subtask #6
0.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Incorrect 0 ms 348 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
20 Halted 0 ms 0 KB -

Subtask #7
0.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 2 ms 348 KB Output is correct
20 Correct 17 ms 604 KB Output is correct
21 Correct 2 ms 600 KB Output is correct
22 Correct 17 ms 600 KB Output is correct
23 Correct 1 ms 604 KB Output is correct
24 Correct 17 ms 604 KB Output is correct
25 Correct 14 ms 656 KB Output is correct
26 Incorrect 0 ms 348 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
27 Halted 0 ms 0 KB -

Subtask #8
0.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 2 ms 348 KB Output is correct
20 Correct 17 ms 604 KB Output is correct
21 Correct 2 ms 600 KB Output is correct
22 Correct 17 ms 600 KB Output is correct
23 Correct 1 ms 604 KB Output is correct
24 Correct 17 ms 604 KB Output is correct
25 Correct 14 ms 656 KB Output is correct
26 Correct 12 ms 344 KB Output is correct
27 Correct 921 ms 1696 KB Output is correct
28 Correct 9 ms 1628 KB Output is correct
29 Correct 933 ms 1628 KB Output is correct
30 Correct 887 ms 1624 KB Output is correct
31 Correct 3 ms 1624 KB Output is correct
32 Correct 661 ms 1828 KB Output is correct
33 Correct 703 ms 1824 KB Output is correct
34 Incorrect 0 ms 348 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
35 Halted 0 ms 0 KB -

Subtask #9
0.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 2 ms 348 KB Output is correct
20 Correct 17 ms 604 KB Output is correct
21 Correct 2 ms 600 KB Output is correct
22 Correct 17 ms 600 KB Output is correct
23 Correct 1 ms 604 KB Output is correct
24 Correct 17 ms 604 KB Output is correct
25 Correct 14 ms 656 KB Output is correct
26 Correct 12 ms 344 KB Output is correct
27 Correct 921 ms 1696 KB Output is correct
28 Correct 9 ms 1628 KB Output is correct
29 Correct 933 ms 1628 KB Output is correct
30 Correct 887 ms 1624 KB Output is correct
31 Correct 3 ms 1624 KB Output is correct
32 Correct 661 ms 1828 KB Output is correct
33 Correct 703 ms 1824 KB Output is correct
34 Incorrect 0 ms 348 KB 1st lines differ - on the 1st token, expected: '6', found: '5'
35 Halted 0 ms 0 KB -