oj.uz

답안 #985295

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
985295 2024-05-17T14:41:29 Z tvladm2009 봉쇄 시간 (IOI23_closing) C++17
21 / 100
 1000 ms 24856 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;
 
const int N = 2e5 + 7;
 
vector<pair<int, int>> g[N];
int ans = 0;
 
vector<ll> find_dist(int n, int x) {
    vector<ll> dist(n, -1);
    queue<int> q;
    q.push(x);
    dist[x] = 0;
    while (!q.empty()) {
        int u = q.front();
        q.pop();
        for (auto v : g[u]) {
            if (dist[v.first] == -1) {
                dist[v.first] = dist[u] + v.second;
                q.push(v.first);
            }
        }
    }
    return dist;
}
 
int max_score(int n, int X, int Y, ll K, vector<int> U, vector<int> V, vector<int> W) {
    for (int i = 0; i < n; ++i) {
        g[i].clear();
    }
    ans = 0;
    for (int i = 0; i < n - 1; ++i) {
        g[U[i]].push_back(make_pair(V[i], W[i]));
        g[V[i]].push_back(make_pair(U[i], W[i]));
    }
    vector<ll> distX = find_dist(n, X);
    vector<ll> distY = find_dist(n, Y);
    vector<ll> one(n, 0), two(n, 0);
    for (int i = 0; i < n; ++i) {
        one[i] = min(distX[i], distY[i]);
        two[i] = max(distX[i], distY[i]);
    }
    {
        vector<ll> aux = one;
        sort(aux.begin(), aux.end());
        ll sum = 0;
        for (int i = 0; i < n; ++i) {
            if (sum + aux[i] <= K) {
                ans++;
                sum += aux[i];
            }
        }
        if (distX[Y] + 1 > 2 * K) {
           return sum;
        }
    }
    vector<bool> counted(n, 0);
    ll d = distX[Y], between = 0;
    int cnt = 0;
    for (int i = 0; i < n; ++i) {
        if (distX[i] + distY[i] == d) {
            between += one[i];
            cnt++;
            counted[i] = 1;
        }
    }
    ll sum_other_two = 0;
    vector<int> ord2(n);
    iota(ord2.begin(), ord2.end(), 0);
    sort(ord2.begin(), ord2.end(), [&](int x, int y) {
        return two[x] < two[y];
    });
    int ptr = 0;
 
    vector<int> ord1(n);
    iota(ord1.begin(), ord1.end(), 0);
    sort(ord1.begin(), ord1.end(), [&](int x, int y) {
        return one[x] < one[y];
    });
    auto get_sum_other_one = [&](int twos, int ones) {
        if (ones == 0) {
            return 0LL;
        }
        ll sum = 0;
        for (int i = 0; i < n; ++i) {
            if (counted[ord1[i]] == 0) {
                sum += one[ord1[i]];
                ones--;
                if (ones == 0) {
                    break;
                }
            }
        }
        return sum;
    };
 
    for (int twos = 0; twos <= n; ++twos) {
        if (twos != 0) {
            sum_other_two += two[ord2[ptr]];
            counted[ord2[ptr]] = 1;
            if (distX[ord2[ptr]] + distY[ord2[ptr]] == d) {
                between -= one[ord2[ptr]];
                cnt--;
            }
            ptr++;
        }
 
        for (int ones = 0; ones + twos + cnt <= n; ++ones) {
            if (sum_other_two + between + get_sum_other_one(twos, ones) <= K) {
                ans = max(ans, 2 * twos + cnt + ones);
            }
        }
    }
    return ans;
}

Subtask #0
0.0 / 0.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4956 KB Output is correct

Subtask #1
0.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 99 ms 24856 KB 1st lines differ - on the 1st token, expected: '451', found: '-109466278'
2 Halted 0 ms 0 KB -

Subtask #2
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 4956 KB Output is correct
2 Correct 1 ms 4952 KB Output is correct
3 Correct 1 ms 4956 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 1 ms 4956 KB Output is correct
7 Correct 2 ms 4956 KB Output is correct
8 Correct 2 ms 4956 KB Output is correct
9 Correct 2 ms 4952 KB Output is correct
10 Correct 1 ms 4956 KB Output is correct
11 Correct 1 ms 4952 KB Output is correct

Subtask #3
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 4956 KB Output is correct
2 Correct 1 ms 4952 KB Output is correct
3 Correct 1 ms 4956 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 1 ms 4956 KB Output is correct
7 Correct 2 ms 4956 KB Output is correct
8 Correct 2 ms 4956 KB Output is correct
9 Correct 2 ms 4952 KB Output is correct
10 Correct 1 ms 4956 KB Output is correct
11 Correct 1 ms 4952 KB Output is correct
12 Correct 2 ms 5208 KB Output is correct
13 Correct 2 ms 4956 KB Output is correct
14 Correct 1 ms 5208 KB Output is correct
15 Correct 2 ms 4956 KB Output is correct
16 Correct 1 ms 4956 KB Output is correct
17 Correct 1 ms 4956 KB Output is correct
18 Correct 2 ms 4956 KB Output is correct
19 Correct 53 ms 4956 KB Output is correct
20 Correct 41 ms 4956 KB Output is correct
21 Correct 19 ms 4956 KB Output is correct
22 Correct 58 ms 4956 KB Output is correct
23 Correct 2 ms 4952 KB Output is correct
24 Correct 2 ms 4956 KB Output is correct

Subtask #4
0.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 4956 KB Output is correct
2 Correct 1 ms 4952 KB Output is correct
3 Correct 1 ms 4956 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 1 ms 4956 KB Output is correct
7 Correct 2 ms 4956 KB Output is correct
8 Correct 2 ms 4956 KB Output is correct
9 Correct 2 ms 4952 KB Output is correct
10 Correct 1 ms 4956 KB Output is correct
11 Correct 1 ms 4952 KB Output is correct
12 Correct 2 ms 5208 KB Output is correct
13 Correct 2 ms 4956 KB Output is correct
14 Correct 1 ms 5208 KB Output is correct
15 Correct 2 ms 4956 KB Output is correct
16 Correct 1 ms 4956 KB Output is correct
17 Correct 1 ms 4956 KB Output is correct
18 Correct 2 ms 4956 KB Output is correct
19 Correct 53 ms 4956 KB Output is correct
20 Correct 41 ms 4956 KB Output is correct
21 Correct 19 ms 4956 KB Output is correct
22 Correct 58 ms 4956 KB Output is correct
23 Correct 2 ms 4952 KB Output is correct
24 Correct 2 ms 4956 KB Output is correct
25 Correct 5 ms 4952 KB Output is correct
26 Execution timed out 1064 ms 5212 KB Time limit exceeded
27 Halted 0 ms 0 KB -

Subtask #5
0.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4956 KB Output is correct
2 Correct 1 ms 4956 KB Output is correct
3 Correct 1 ms 4952 KB Output is correct
4 Correct 1 ms 4956 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 2 ms 4956 KB Output is correct
7 Incorrect 1 ms 4952 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 2 ms 4956 KB Output is correct
2 Correct 1 ms 4956 KB Output is correct
3 Correct 1 ms 4952 KB Output is correct
4 Correct 1 ms 4956 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 2 ms 4956 KB Output is correct
7 Correct 1 ms 4956 KB Output is correct
8 Correct 2 ms 4956 KB Output is correct
9 Correct 2 ms 4956 KB Output is correct
10 Correct 2 ms 4952 KB Output is correct
11 Correct 1 ms 4956 KB Output is correct
12 Correct 1 ms 4952 KB Output is correct
13 Correct 2 ms 5208 KB Output is correct
14 Correct 2 ms 4956 KB Output is correct
15 Correct 1 ms 5208 KB Output is correct
16 Correct 2 ms 4956 KB Output is correct
17 Correct 1 ms 4956 KB Output is correct
18 Correct 1 ms 4956 KB Output is correct
19 Incorrect 1 ms 4952 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 2 ms 4956 KB Output is correct
2 Correct 1 ms 4956 KB Output is correct
3 Correct 1 ms 4952 KB Output is correct
4 Correct 1 ms 4956 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 2 ms 4956 KB Output is correct
7 Correct 1 ms 4956 KB Output is correct
8 Correct 2 ms 4956 KB Output is correct
9 Correct 2 ms 4956 KB Output is correct
10 Correct 2 ms 4952 KB Output is correct
11 Correct 1 ms 4956 KB Output is correct
12 Correct 1 ms 4952 KB Output is correct
13 Correct 2 ms 5208 KB Output is correct
14 Correct 2 ms 4956 KB Output is correct
15 Correct 1 ms 5208 KB Output is correct
16 Correct 2 ms 4956 KB Output is correct
17 Correct 1 ms 4956 KB Output is correct
18 Correct 1 ms 4956 KB Output is correct
19 Correct 2 ms 4956 KB Output is correct
20 Correct 53 ms 4956 KB Output is correct
21 Correct 41 ms 4956 KB Output is correct
22 Correct 19 ms 4956 KB Output is correct
23 Correct 58 ms 4956 KB Output is correct
24 Correct 2 ms 4952 KB Output is correct
25 Correct 2 ms 4956 KB Output is correct
26 Incorrect 1 ms 4952 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 2 ms 4956 KB Output is correct
2 Correct 1 ms 4956 KB Output is correct
3 Correct 1 ms 4952 KB Output is correct
4 Correct 1 ms 4956 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 2 ms 4956 KB Output is correct
7 Correct 1 ms 4956 KB Output is correct
8 Correct 2 ms 4956 KB Output is correct
9 Correct 2 ms 4956 KB Output is correct
10 Correct 2 ms 4952 KB Output is correct
11 Correct 1 ms 4956 KB Output is correct
12 Correct 1 ms 4952 KB Output is correct
13 Correct 2 ms 5208 KB Output is correct
14 Correct 2 ms 4956 KB Output is correct
15 Correct 1 ms 5208 KB Output is correct
16 Correct 2 ms 4956 KB Output is correct
17 Correct 1 ms 4956 KB Output is correct
18 Correct 1 ms 4956 KB Output is correct
19 Correct 2 ms 4956 KB Output is correct
20 Correct 53 ms 4956 KB Output is correct
21 Correct 41 ms 4956 KB Output is correct
22 Correct 19 ms 4956 KB Output is correct
23 Correct 58 ms 4956 KB Output is correct
24 Correct 2 ms 4952 KB Output is correct
25 Correct 2 ms 4956 KB Output is correct
26 Correct 5 ms 4952 KB Output is correct
27 Execution timed out 1064 ms 5212 KB Time limit exceeded
28 Halted 0 ms 0 KB -

Subtask #9
0.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4956 KB Output is correct
2 Correct 1 ms 4956 KB Output is correct
3 Correct 1 ms 4952 KB Output is correct
4 Correct 1 ms 4956 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 2 ms 4956 KB Output is correct
7 Correct 1 ms 4956 KB Output is correct
8 Correct 2 ms 4956 KB Output is correct
9 Correct 2 ms 4956 KB Output is correct
10 Correct 2 ms 4952 KB Output is correct
11 Correct 1 ms 4956 KB Output is correct
12 Correct 1 ms 4952 KB Output is correct
13 Correct 2 ms 5208 KB Output is correct
14 Correct 2 ms 4956 KB Output is correct
15 Correct 1 ms 5208 KB Output is correct
16 Correct 2 ms 4956 KB Output is correct
17 Correct 1 ms 4956 KB Output is correct
18 Correct 1 ms 4956 KB Output is correct
19 Correct 2 ms 4956 KB Output is correct
20 Correct 53 ms 4956 KB Output is correct
21 Correct 41 ms 4956 KB Output is correct
22 Correct 19 ms 4956 KB Output is correct
23 Correct 58 ms 4956 KB Output is correct
24 Correct 2 ms 4952 KB Output is correct
25 Correct 2 ms 4956 KB Output is correct
26 Correct 5 ms 4952 KB Output is correct
27 Execution timed out 1064 ms 5212 KB Time limit exceeded
28 Halted 0 ms 0 KB -