oj.uz

답안 #1056653

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1056653 2024-08-13T10:28:32 Z Ignut 봉쇄 시간 (IOI23_closing) C++17
21 / 100
 1000 ms 27620 KB 
/* Ignut
started: 13.08.2024
now: 13.08.2024
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*/
 
#include <bits/stdc++.h>
 
using namespace std;
using ll = long long;
 
const int MAXN = 2e5 + 123;
 
vector<pair<int, int>> tree[MAXN];
    
vector<int> order;
int pos[MAXN];
 
void dfs(int v, int par) {
    order.push_back(v);
    for (auto [to, w] : tree[v])
        if (to != par)
            dfs(to, v);
}
 
ll dx[MAXN], dy[MAXN];
 
void dfs2(int v, int par, ll d, bool f) {
    if (f) dx[v] = d;
    else dy[v] = d;
    for (auto [to, w] : tree[v])
        if (to != par)
            dfs2(to, v, d + w, f);
}
 
int max_score(int N, int X, int Y, ll K, vector<int> U, vector<int> V, vector<int> W) {
    order.clear();
    for (int i = 0; i < N; i ++)
        tree[i].clear();
    for (int i = 0; i < N - 1; i ++) {
        tree[U[i]].push_back({V[i], W[i]});
        tree[V[i]].push_back({U[i], W[i]});
    }
    int start = 0;
    for (int i = 0; i < N; i ++) {
        if (tree[i].size() == 1) {
            start = i; break;
        }
    }
    dfs(start, -1);
    for (int i = 0; i < N; i ++) pos[order[i]] = i;
 
    dfs2(X, -1, 0, true);
    dfs2(Y, -1, 0, false);
 
    if (pos[X] > pos[Y]) {
        swap(X, Y);
        for (int i = 0; i < N; i ++) swap(dx[i], dy[i]);
    }
 
    ll sumX[N + 1] = {};
    ll sumY[N + 1] = {};
    ll sum2[N + 1] = {};
    for (int i = 0; i < N; i ++) {
        sumX[i + 1] = sumX[i] + dx[order[i]];
        sumY[i + 1] = sumY[i] + dy[order[i]];
        sum2[i + 1] = sum2[i] + max(dx[order[i]], dy[order[i]]);
    }

    int res = 0;
 
    for (int l = 0; l < N; l ++) {
        for (int r = l; r < N; r ++) {
            ll sum = 0;
            int ans = (r - l + 1) * 2;
            sum = sum2[r + 1] - sum2[l];
            if (pos[X] < l) {
                ans += l - pos[X];
                sum += sumX[l] - sumX[pos[X]];
            }
            if (pos[Y] > r) {
                ans += pos[Y] - r;
                // sum += sumY[pos[Y]] - sumY[r];
            }
            for (int i = pos[Y]; i > r; i --) sum += dy[order[i]];
            vector<ll> ds;
            for (int i = 0; i < min(pos[X], l); i ++) ds.push_back(dx[order[i]]);
            for (int i = max(pos[Y], r) + 1; i < N; i ++) ds.push_back(dy[order[i]]);
            sort(ds.begin(), ds.end());
            for (int i = 0; i < ds.size(); i ++) {
                if (sum + ds[i] <= K) {
                    sum += ds[i];
                    ans ++;
                }
            }
            if (sum <= K)
                res = max(res, ans);
        }
    }
 
    // no overlap
    vector<ll> ds;
    for (int i = 0; i < N; i ++) {
        ds.push_back(dx[i]);
        ds.push_back(dy[i]);
    }
    sort(ds.begin(), ds.end());
    ll sum = 0;
    int ans = 0;
    for (int i = 0; i < ds.size(); i ++) {
        if (sum + ds[i] <= K) {
            sum += ds[i];
            ans ++;
        }
    }
    res = max(res, ans);
 
    return res;
}

Compilation message

closing.cpp: In function 'int max_score(int, int, int, ll, std::vector<int>, std::vector<int>, std::vector<int>)':
closing.cpp:111:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  111 |             for (int i = 0; i < ds.size(); i ++) {
      |                             ~~^~~~~~~~~~~
closing.cpp:131:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  131 |     for (int i = 0; i < ds.size(); i ++) {
      |                     ~~^~~~~~~~~~~

Subtask #0
0.0 / 0.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 8796 KB Output is correct

Subtask #1
0.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1091 ms 27620 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 8796 KB Output is correct
2 Correct 1 ms 8796 KB Output is correct
3 Correct 1 ms 8884 KB Output is correct
4 Correct 1 ms 8796 KB Output is correct
5 Correct 2 ms 8792 KB Output is correct
6 Correct 2 ms 8792 KB Output is correct
7 Correct 2 ms 8792 KB Output is correct
8 Correct 1 ms 8796 KB Output is correct
9 Correct 2 ms 8792 KB Output is correct
10 Correct 1 ms 8796 KB Output is correct
11 Correct 1 ms 8796 KB Output is correct

Subtask #3
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 8796 KB Output is correct
2 Correct 1 ms 8796 KB Output is correct
3 Correct 1 ms 8884 KB Output is correct
4 Correct 1 ms 8796 KB Output is correct
5 Correct 2 ms 8792 KB Output is correct
6 Correct 2 ms 8792 KB Output is correct
7 Correct 2 ms 8792 KB Output is correct
8 Correct 1 ms 8796 KB Output is correct
9 Correct 2 ms 8792 KB Output is correct
10 Correct 1 ms 8796 KB Output is correct
11 Correct 1 ms 8796 KB Output is correct
12 Correct 2 ms 8884 KB Output is correct
13 Correct 2 ms 8796 KB Output is correct
14 Correct 3 ms 8796 KB Output is correct
15 Correct 2 ms 8796 KB Output is correct
16 Correct 1 ms 8796 KB Output is correct
17 Correct 1 ms 8796 KB Output is correct
18 Correct 1 ms 8892 KB Output is correct
19 Correct 337 ms 8912 KB Output is correct
20 Correct 168 ms 8916 KB Output is correct
21 Correct 155 ms 8796 KB Output is correct
22 Correct 130 ms 8932 KB Output is correct
23 Correct 9 ms 8792 KB Output is correct
24 Correct 9 ms 8796 KB Output is correct

Subtask #4
0.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 8796 KB Output is correct
2 Correct 1 ms 8796 KB Output is correct
3 Correct 1 ms 8884 KB Output is correct
4 Correct 1 ms 8796 KB Output is correct
5 Correct 2 ms 8792 KB Output is correct
6 Correct 2 ms 8792 KB Output is correct
7 Correct 2 ms 8792 KB Output is correct
8 Correct 1 ms 8796 KB Output is correct
9 Correct 2 ms 8792 KB Output is correct
10 Correct 1 ms 8796 KB Output is correct
11 Correct 1 ms 8796 KB Output is correct
12 Correct 2 ms 8884 KB Output is correct
13 Correct 2 ms 8796 KB Output is correct
14 Correct 3 ms 8796 KB Output is correct
15 Correct 2 ms 8796 KB Output is correct
16 Correct 1 ms 8796 KB Output is correct
17 Correct 1 ms 8796 KB Output is correct
18 Correct 1 ms 8892 KB Output is correct
19 Correct 337 ms 8912 KB Output is correct
20 Correct 168 ms 8916 KB Output is correct
21 Correct 155 ms 8796 KB Output is correct
22 Correct 130 ms 8932 KB Output is correct
23 Correct 9 ms 8792 KB Output is correct
24 Correct 9 ms 8796 KB Output is correct
25 Correct 17 ms 8792 KB Output is correct
26 Execution timed out 1061 ms 9052 KB Time limit exceeded
27 Halted 0 ms 0 KB -

Subtask #5
0.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 8796 KB Output is correct
2 Correct 1 ms 8796 KB Output is correct
3 Correct 1 ms 8796 KB Output is correct
4 Correct 1 ms 8884 KB Output is correct
5 Correct 1 ms 8796 KB Output is correct
6 Correct 2 ms 8792 KB Output is correct
7 Incorrect 1 ms 8792 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 1 ms 8796 KB Output is correct
2 Correct 1 ms 8796 KB Output is correct
3 Correct 1 ms 8796 KB Output is correct
4 Correct 1 ms 8884 KB Output is correct
5 Correct 1 ms 8796 KB Output is correct
6 Correct 2 ms 8792 KB Output is correct
7 Correct 2 ms 8792 KB Output is correct
8 Correct 2 ms 8792 KB Output is correct
9 Correct 1 ms 8796 KB Output is correct
10 Correct 2 ms 8792 KB Output is correct
11 Correct 1 ms 8796 KB Output is correct
12 Correct 1 ms 8796 KB Output is correct
13 Correct 2 ms 8884 KB Output is correct
14 Correct 2 ms 8796 KB Output is correct
15 Correct 3 ms 8796 KB Output is correct
16 Correct 2 ms 8796 KB Output is correct
17 Correct 1 ms 8796 KB Output is correct
18 Correct 1 ms 8796 KB Output is correct
19 Incorrect 1 ms 8792 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 1 ms 8796 KB Output is correct
2 Correct 1 ms 8796 KB Output is correct
3 Correct 1 ms 8796 KB Output is correct
4 Correct 1 ms 8884 KB Output is correct
5 Correct 1 ms 8796 KB Output is correct
6 Correct 2 ms 8792 KB Output is correct
7 Correct 2 ms 8792 KB Output is correct
8 Correct 2 ms 8792 KB Output is correct
9 Correct 1 ms 8796 KB Output is correct
10 Correct 2 ms 8792 KB Output is correct
11 Correct 1 ms 8796 KB Output is correct
12 Correct 1 ms 8796 KB Output is correct
13 Correct 2 ms 8884 KB Output is correct
14 Correct 2 ms 8796 KB Output is correct
15 Correct 3 ms 8796 KB Output is correct
16 Correct 2 ms 8796 KB Output is correct
17 Correct 1 ms 8796 KB Output is correct
18 Correct 1 ms 8796 KB Output is correct
19 Correct 1 ms 8892 KB Output is correct
20 Correct 337 ms 8912 KB Output is correct
21 Correct 168 ms 8916 KB Output is correct
22 Correct 155 ms 8796 KB Output is correct
23 Correct 130 ms 8932 KB Output is correct
24 Correct 9 ms 8792 KB Output is correct
25 Correct 9 ms 8796 KB Output is correct
26 Incorrect 1 ms 8792 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 1 ms 8796 KB Output is correct
2 Correct 1 ms 8796 KB Output is correct
3 Correct 1 ms 8796 KB Output is correct
4 Correct 1 ms 8884 KB Output is correct
5 Correct 1 ms 8796 KB Output is correct
6 Correct 2 ms 8792 KB Output is correct
7 Correct 2 ms 8792 KB Output is correct
8 Correct 2 ms 8792 KB Output is correct
9 Correct 1 ms 8796 KB Output is correct
10 Correct 2 ms 8792 KB Output is correct
11 Correct 1 ms 8796 KB Output is correct
12 Correct 1 ms 8796 KB Output is correct
13 Correct 2 ms 8884 KB Output is correct
14 Correct 2 ms 8796 KB Output is correct
15 Correct 3 ms 8796 KB Output is correct
16 Correct 2 ms 8796 KB Output is correct
17 Correct 1 ms 8796 KB Output is correct
18 Correct 1 ms 8796 KB Output is correct
19 Correct 1 ms 8892 KB Output is correct
20 Correct 337 ms 8912 KB Output is correct
21 Correct 168 ms 8916 KB Output is correct
22 Correct 155 ms 8796 KB Output is correct
23 Correct 130 ms 8932 KB Output is correct
24 Correct 9 ms 8792 KB Output is correct
25 Correct 9 ms 8796 KB Output is correct
26 Correct 17 ms 8792 KB Output is correct
27 Execution timed out 1061 ms 9052 KB Time limit exceeded
28 Halted 0 ms 0 KB -

Subtask #9
0.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 8796 KB Output is correct
2 Correct 1 ms 8796 KB Output is correct
3 Correct 1 ms 8796 KB Output is correct
4 Correct 1 ms 8884 KB Output is correct
5 Correct 1 ms 8796 KB Output is correct
6 Correct 2 ms 8792 KB Output is correct
7 Correct 2 ms 8792 KB Output is correct
8 Correct 2 ms 8792 KB Output is correct
9 Correct 1 ms 8796 KB Output is correct
10 Correct 2 ms 8792 KB Output is correct
11 Correct 1 ms 8796 KB Output is correct
12 Correct 1 ms 8796 KB Output is correct
13 Correct 2 ms 8884 KB Output is correct
14 Correct 2 ms 8796 KB Output is correct
15 Correct 3 ms 8796 KB Output is correct
16 Correct 2 ms 8796 KB Output is correct
17 Correct 1 ms 8796 KB Output is correct
18 Correct 1 ms 8796 KB Output is correct
19 Correct 1 ms 8892 KB Output is correct
20 Correct 337 ms 8912 KB Output is correct
21 Correct 168 ms 8916 KB Output is correct
22 Correct 155 ms 8796 KB Output is correct
23 Correct 130 ms 8932 KB Output is correct
24 Correct 9 ms 8792 KB Output is correct
25 Correct 9 ms 8796 KB Output is correct
26 Correct 17 ms 8792 KB Output is correct
27 Execution timed out 1061 ms 9052 KB Time limit exceeded
28 Halted 0 ms 0 KB -