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Submission #783034

# Submission time Handle Problem Language Result Execution time Memory
783034 2023-07-14T14:25:29 Z Ahmed57 Burza (COCI16_burza) C++17
0 / 160
 259 ms 524288 KB 
#include<bits/stdc++.h>

using namespace std;
vector<int> eu;int en[401],lol[401];
vector<int> adj[401];
void dfs(int i,int pr,int dep){
    eu.push_back(i);
    lol[i] = dep;
    for(auto j:adj[i]){
        if(j==pr)continue;
        dfs(j,i,dep+1);
    }
    en[i] = eu.size();
}
int dp[401][(1<<20)];int n,k;
int solve(int i,int mask){
    if(i==n){
        return 1;
    }
    if(dp[i][mask]!=-1)return dp[i][mask];
    int c1 = 0;
    if(!(mask&(1<<lol[eu[i]]))){
        c1|=solve(en[eu[i]],mask|(1<<lol[eu[i]]));
    }
    if(lol[eu[i]]+1<k){
        c1|=solve(i+1,mask);
    }
    return dp[i][mask] = c1;
}
int main(){
    ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    cin>>n>>k;
    if(n<=k*k){
        cout<<"DA\n";
        return 0;
    }
    for(int i = 0;i<n-1;i++){
        int a,b;cin>>a>>b;
        adj[a].push_back(b);
        adj[b].push_back(a);
    }
    dfs(1,0,-1);
    memset(dp,-1,sizeof dp);
    cout<<(solve(1,0)?"DA":"NE")<<endl;
    return 0;
}

Subtask #1
0 / 16.0

# Verdict Execution time Memory Grader output
1 Runtime error 259 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #2
0 / 16.0

# Verdict Execution time Memory Grader output
1 Runtime error 171 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Runtime error 192 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Runtime error 177 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #5
0 / 16.0

# Verdict Execution time Memory Grader output
1 Runtime error 228 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #6
0 / 16.0

# Verdict Execution time Memory Grader output
1 Runtime error 169 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #7
0 / 16.0

# Verdict Execution time Memory Grader output
1 Runtime error 173 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Runtime error 169 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #9
0 / 16.0

# Verdict Execution time Memory Grader output
1 Runtime error 173 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #10
0 / 16.0

# Verdict Execution time Memory Grader output
1 Runtime error 174 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -