Submission #827460

#	Time	Username	Problem	Language	Result	Execution time	Memory
827460		SoulKnight	Burza (COCI16_burza)	C++17	0 / 160	1 ms	980 KiB

burza

#include "bits/stdc++.h"
using namespace std;

#define ll long long
#define ln '\n'

const int N = 400 + 5;
const int LG = 21;
const ll INF = 5e18;
const int MOD = 998244353;

int n, k;

vector<int> adj[N];
priority_queue<int> pq;
int dp[N][N];

void f(int u, int p){
    for (auto& v: adj[u]){
        if (v == p) continue;
        f(v, u);
    }

    dp[u][0] = adj[u].size() - (u != 1);
    for (int j = 1; j <= k; j++){
        for (auto& v: adj[u]) if (v != p) pq.push(dp[v][j-1]);

        int g = 0;
        while (!pq.empty()){
            dp[u][j] = min(dp[u][j], pq.top() + g);
            pq.pop(); g++;
        }
    }
}

void solve(){
    cin >> n >> k;
    for (int i = 0; i < n-1; i++){
        int u, v; cin >> u >> v;
        adj[u].push_back(v);
        adj[v].push_back(u);
    }

    memset(dp, 0x3f, sizeof(dp));
    f(1, -1);

    bool ok = false;

    for (int i = 0; i < k; i++){
        ok |= (dp[1][i] <= k);
    }

    cout << ((ok)? "DA": "NE") << ln;




}




int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    // freopen("mooyomooyo.in", "r", stdin);
    // freopen("mooyomooyo.out", "w", stdout);


    // ll T; cin >> T;
    // while (T--){
    //     solve();
    // }

    // init();
    solve();

    return 0;
}

• Subtask 1: 0 / 16
• Subtask 2: 0 / 16
• Subtask 3: 0 / 16
• Subtask 4: 0 / 16
• Subtask 5: 0 / 16
• Subtask 6: 0 / 16
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• Subtask 10: 0 / 16