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Submission #537322

# Submission time Handle Problem Language Result Execution time Memory
537322 2022-03-15T01:19:18 Z MinhAnhnd Burza (COCI16_burza) C++14
0 / 160
 1 ms 360 KB 
#include <bits/stdc++.h>
#include <iostream>
#define ll long long
#define ull unsigned ll
using namespace std;


vector<long> branches[401];
vector<long> children[401];
long parents[401];
long N,K;
long dp[401]={};
long depth = -1;

void dfs(long u,long parent){
    depth++;
    parents[u] = parent;
    for (auto v:branches[u]){
        if (v!=parent){
            children[u].push_back(v);
            dfs(v,u);
        }
    }
    if (depth==K){
        dp[u] = LONG_MAX;
    }
    else if (children[u].size()<2){
        dp[u] = 0;
    }
    else{
    //sort(children[u].begin(),children[u].end(),greater<>());
    for (auto v:children[u]){
        if (dp[v] != 0) dp[u]++;
    }
    if (dp[u]!=0) dp[u]--;
    }
    depth--;
    return;
}

int main(){
    cin>>N>>K;
    for(long i = 1;i<=N-1;i++){
        long u,v;
        cin>>u>>v;
        branches[u].push_back(v);
        branches[v].push_back(u);
    }

    dfs(1,-1);
    if (dp[1] == 0) cout<<"DA"; else cout<<"NE";
}

Subtask #1
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 #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 324 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 328 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 328 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 328 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 360 KB Output isn't correct
2 Halted 0 ms 0 KB -