oj.uz

Submission #827462

# Submission time Handle Problem Language Result Execution time Memory
827462 2023-08-16T13:43:08 Z SoulKnight Burza (COCI16_burza) C++17
0 / 160
 1 ms 980 KB 
#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");




}




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 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 980 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 980 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 980 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 980 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 980 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 980 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 904 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 980 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 980 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 980 KB Output isn't correct
2 Halted 0 ms 0 KB -