oj.uz

Submission #525937

# Submission time Handle Problem Language Result Execution time Memory
525937 2022-02-13T08:59:29 Z Josia Paths (RMI21_paths) C++14
36 / 100
 600 ms 28640 KB 
#include <bits/stdc++.h>

using namespace std;
#define int int64_t



vector<pair<int, int>> parents;
vector<vector<pair<int, int>>> graph;
vector<int> order;
int n, k;


void generateParents(int v, int p, int weight) {
    if (parents[v].first != -1) return;

    parents[v].first = p;
    parents[v].second = weight;

    for (auto u: graph[v]) {
        if (parents[u.first].first != -1) continue;
        generateParents(u.first, v, u.second);
    }
    order.push_back(v);
}



void merge(multiset<int> &A, multiset<int> &B) {
    if (A.size() > B.size()) A.swap(B);
    for (int e: A) B.insert(e);
}



int stl(int v) {
    vector<multiset<int>> tree(n);  // offset, options

    for (int i = 0; i<n; i++) {
        if (graph[i].size() == 1 && i!=v) tree[i].insert(0);
    }

    order.pop_back();

    for (int i: order) {
        int newElem = *tree[i].rbegin() + parents[i].second;
        tree[i].erase(*tree[i].rbegin());
        tree[i].insert(newElem);

        merge(tree[i], tree[parents[i].first]);
    }

    // cerr << "root element: ";

    // for (int i: tree[v]) {
    //     cerr << i << " ";
    // } cerr << "\n";


    int res = 0;

    auto it = tree[v].end();

    for (int i = 0; i<k; i++) {
        it--;
        res += *it;
    }

    return res;
}



void solve() {
    
    cin >> n >> k;
    graph.resize(n);
    parents.resize(n);

    for (int i = 0; i<n-1; i++) {
        int a, b, c; cin >> a >> b >> c;
        a--; b--;
        graph[a].push_back({b, c});
        graph[b].push_back({a, c});
    }

    for (int i = 0; i<n; i++) {
        // parents.clear();
        fill(parents.begin(), parents.end(), (pair<int, int>){-1, 0});
        order.clear();

        generateParents(i, -2, 0);

        // cerr << "order: ";
        // for (auto i: order) {
        //     cerr << i << " ";
        // } cerr << "\n";

        // cerr << "parents: ";
        // for (auto i: parents) {
        //     cerr << i.first << " ";
        // } cerr << "\n";

        assert(order.back() == i);

        int res = stl(i);

        cout << res << "\n";
        // cerr << "result: " << res << "\n";
    }
    


}

signed main() {
    cin.tie(0);
    ios_base::sync_with_stdio(0);

    solve();

    return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 9 ms 356 KB Output is correct
4 Correct 7 ms 332 KB Output is correct
5 Correct 8 ms 332 KB Output is correct
6 Correct 4 ms 332 KB Output is correct
7 Correct 6 ms 332 KB Output is correct

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 9 ms 356 KB Output is correct
4 Correct 7 ms 332 KB Output is correct
5 Correct 8 ms 332 KB Output is correct
6 Correct 4 ms 332 KB Output is correct
7 Correct 6 ms 332 KB Output is correct
8 Correct 276 ms 708 KB Output is correct
9 Correct 151 ms 508 KB Output is correct
10 Correct 101 ms 484 KB Output is correct
11 Correct 193 ms 752 KB Output is correct
12 Correct 141 ms 580 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 9 ms 356 KB Output is correct
4 Correct 7 ms 332 KB Output is correct
5 Correct 8 ms 332 KB Output is correct
6 Correct 4 ms 332 KB Output is correct
7 Correct 6 ms 332 KB Output is correct
8 Correct 276 ms 708 KB Output is correct
9 Correct 151 ms 508 KB Output is correct
10 Correct 101 ms 484 KB Output is correct
11 Correct 193 ms 752 KB Output is correct
12 Correct 141 ms 580 KB Output is correct
13 Execution timed out 1089 ms 944 KB Time limit exceeded
14 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1090 ms 28640 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 9 ms 356 KB Output is correct
4 Correct 7 ms 332 KB Output is correct
5 Correct 8 ms 332 KB Output is correct
6 Correct 4 ms 332 KB Output is correct
7 Correct 6 ms 332 KB Output is correct
8 Correct 276 ms 708 KB Output is correct
9 Correct 151 ms 508 KB Output is correct
10 Correct 101 ms 484 KB Output is correct
11 Correct 193 ms 752 KB Output is correct
12 Correct 141 ms 580 KB Output is correct
13 Execution timed out 1089 ms 944 KB Time limit exceeded
14 Halted 0 ms 0 KB -