oj.uz

답안 #716521

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
716521 2023-03-30T08:51:22 Z Stickfish Paths (RMI21_paths) C++17
36 / 100
 600 ms 11092 KB 
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
using ll = long long;

const int MAXN = 1e4 + 123;
vector<pair<int, int>> edg[MAXN];
ll cost[MAXN * 2];
pair<int, int> edges[MAXN * 2];
vector<ll> dp[MAXN * 2];

void get_dp(int e, int k) {
    if (dp[e].size())
        return;
    auto [rt, v] = edges[e];
    for (auto [u, ne] : edg[v]) {
        if (u == rt)
            continue;
        get_dp(ne, k);
        vector<ll> ndp(dp[e].size() + dp[ne].size());
        merge(dp[e].rbegin(), dp[e].rend(), dp[ne].rbegin(), dp[ne].rend(), ndp.rbegin());
        ndp.resize(min(int(ndp.size()), k));
        dp[e] = ndp;
    }
    if (dp[e].empty()) {
        dp[e] = {cost[e]};
    } else {
        dp[e][0] += cost[e];
    }
}

signed main() {
    int n, k;
    cin >> n >> k;
    for (int i = 0; i + 1 < n; ++i) {
        int u, v, c;
        cin >> u >> v >> c;
        --u, --v;
        edg[u].push_back({v, i * 2});
        edg[v].push_back({u, i * 2 + 1});
        edges[i * 2] = {u, v};
        edges[i * 2 + 1] = {v, u};
        cost[i * 2] = cost[i * 2 + 1] = c;
    }
    for (int e = 0; e < n * 2 - 1; ++e)
        get_dp(e, k);
    for (int v = 0; v < n; ++v) {
        vector<ll> ans;
        for (auto [u, e] : edg[v]) {
            vector<ll> ndp(ans.size() + dp[e].size());
            merge(dp[e].rbegin(), dp[e].rend(), ans.rbegin(), ans.rend(), ndp.rbegin());
            ndp.resize(min(int(ndp.size()), k));
            ans = ndp;
        }
        ll anssm = 0;
        for (auto x : ans)
            anssm += x;
        cout << anssm << '\n';
    }
}

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct

Subtask #2
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 1008 KB Output is correct
4 Correct 1 ms 980 KB Output is correct
5 Correct 3 ms 980 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 980 KB Output is correct

Subtask #3
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 1008 KB Output is correct
4 Correct 1 ms 980 KB Output is correct
5 Correct 3 ms 980 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 980 KB Output is correct
8 Correct 4 ms 1876 KB Output is correct
9 Correct 3 ms 1748 KB Output is correct
10 Correct 3 ms 1492 KB Output is correct
11 Correct 49 ms 1852 KB Output is correct
12 Correct 3 ms 1748 KB Output is correct

Subtask #4
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 1008 KB Output is correct
4 Correct 1 ms 980 KB Output is correct
5 Correct 3 ms 980 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 980 KB Output is correct
8 Correct 4 ms 1876 KB Output is correct
9 Correct 3 ms 1748 KB Output is correct
10 Correct 3 ms 1492 KB Output is correct
11 Correct 49 ms 1852 KB Output is correct
12 Correct 3 ms 1748 KB Output is correct
13 Correct 19 ms 11092 KB Output is correct
14 Correct 9 ms 4356 KB Output is correct
15 Correct 4 ms 1748 KB Output is correct
16 Execution timed out 684 ms 9200 KB Time limit exceeded
17 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 2 ms 1748 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #6
0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 1008 KB Output is correct
4 Correct 1 ms 980 KB Output is correct
5 Correct 3 ms 980 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 980 KB Output is correct
8 Correct 4 ms 1876 KB Output is correct
9 Correct 3 ms 1748 KB Output is correct
10 Correct 3 ms 1492 KB Output is correct
11 Correct 49 ms 1852 KB Output is correct
12 Correct 3 ms 1748 KB Output is correct
13 Correct 19 ms 11092 KB Output is correct
14 Correct 9 ms 4356 KB Output is correct
15 Correct 4 ms 1748 KB Output is correct
16 Execution timed out 684 ms 9200 KB Time limit exceeded
17 Halted 0 ms 0 KB -