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Submission #394226

# Submission time Handle Problem Language Result Execution time Memory
394226 2021-04-26T07:45:20 Z haskaran Burza (COCI16_burza) C++17
0 / 160
 1 ms 332 KB 
#include <bits/stdc++.h>
using namespace std;

const int N = 410;

int n, k, dp[N];
bool flag;
vector<int> adj[N];

void dfs(int v = 0, int par = -1) {
    int cnt = 0;
    vector<int> vec;
    for (int u: adj[v])
        if (u ^ par)
            dfs(u, v), vec.push_back(dp[u]);
    sort(vec.begin(), vec.end(), greater<int>());
    for (int x: vec)
        if (x + 1 >= k)
            cnt++;
    if (cnt > 2 && !v)
        flag = true;
    if (vec.size() < 2)
        dp[v] = 0;
    else
        dp[v] = vec[1] + 1;
}

int main() {
    ios:: sync_with_stdio(false), cin.tie(NULL), cout.tie(NULL);
    cin >> n >> k;
    for (int i = 1, u, v; i < n; i++)
        cin >> u >> v, adj[--u].push_back(--v), adj[v].push_back(u);
    dfs();
    if (dp[0] >= k || flag)
        cout << "NE\n";
    else
        cout << "DA\n";
}

Subtask #1
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 332 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 332 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 328 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 332 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 324 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 332 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 332 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 332 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 332 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 332 KB Output isn't correct
2 Halted 0 ms 0 KB -