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Submission #880090

# Submission time Handle Problem Language Result Execution time Memory
880090 2023-11-28T17:25:18 Z anton Burza (COCI16_burza) C++17
0 / 160
 1 ms 348 KB 
#include<bits/stdc++.h>

using namespace std;

vector<vector<int>> adj;
vector<vector<int>> ch;

void dfs(int u, int anc){
    for(auto v:adj[u]){
        if(v!=anc){
            ch[u].push_back(v);
            dfs(v, u);
        }
    }
}

int dp(int u){
    int best = -1;
    int s_best = -1;

    for(auto e: ch[u]){
        auto cur = dp(e);
        if(cur>=best){
            s_best = best;
            best = cur;
        }
        else if(cur>=s_best){
            s_best = cur;
        }
    }

    return s_best+1;
}
signed main(){
    int n,k;
    cin>>n>>k;

    adj.resize(n);
    ch.resize(n);

    for(int i =0; i<n-1; i++){
        int a, b;
        cin>>a>>b;
        a--;
        b--;
        adj[a].push_back(b);
        adj[b].push_back(a);
    }
    dfs(0, -1);

    int res = dp(0);
    //cout<<res<<endl;
    if(k>res){
        cout<<"DA"<<endl;
    }
    else{
        cout<<"NE"<<endl;
    }

}

Subtask #1
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 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 348 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 348 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 344 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 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 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 348 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 348 KB Output isn't correct
2 Halted 0 ms 0 KB -