oj.uz

Submission #674535

# Submission time Handle Problem Language Result Execution time Memory
674535 2022-12-25T00:31:13 Z Nicolas125841 Burza (COCI16_burza) C++14
0 / 160
 1 ms 344 KB 
#include <bits/stdc++.h>

using namespace std;

#define YES "DA"
#define NO "NE"

int dfs(vector<vector<int>> &mp, int n, int p, int m){
    if(mp[n].size() == 1 && mp[n][0] == p)
        return m+1;
    else{
        vector<int> ans;

        for(int v : mp[n])
            if(v != p)
                ans.push_back(dfs(mp, v, n, m+1));

        sort(ans.begin(), ans.end());

        if(ans.size() == 1)
            return m+1;
        else
            return ans[ans.size()-2];
    }
}

int main(){
    cin.tie(NULL)->sync_with_stdio(false);

    int n, k;
    cin >> n >> k;

    vector<vector<int>> mp(n, vector<int>());

    for(int i = 0; i < n-1; i++){

        int u, v;
        cin >> u >> v;

        mp[--u].push_back(--v);
        mp[v].push_back(u);

    }

    cout << (dfs(mp, 0, -1, 0) <= k ? YES : NO) << "\n";
}

Subtask #1
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 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 340 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 340 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 340 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 340 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 320 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 340 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 340 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 340 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 344 KB Output isn't correct
2 Halted 0 ms 0 KB -