oj.uz

답안 #783054

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
783054 2023-07-14T14:34:49 Z Ahmed57 Burza (COCI16_burza) C++17
160 / 160
 127 ms 53868 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();
}
bool dp[401][(1<<20)];int n,k;
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);
    for(int i = n;i>=1;i--){
        for(int mask = 0;mask<(1<<k);mask++){
            if(i==n){
                dp[i][mask] = 1;
                continue;
            }
            dp[i][mask] = 0;
            if(!(mask&(1<<lol[eu[i]]))){
                dp[i][mask]|=dp[en[eu[i]]][mask|(1<<lol[eu[i]])];
            }
            if(lol[eu[i]]+1<k){
                dp[i][mask]|=dp[i+1][mask];
            }
        }
    }
    cout<<(dp[1][0]?"DA":"NE")<<endl;
    return 0;
}

Subtask #1
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 7124 KB Output is correct
2 Correct 100 ms 53868 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 2644 KB Output is correct
6 Correct 1 ms 852 KB Output is correct

Subtask #2
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 97 ms 51232 KB Output is correct
2 Correct 95 ms 51504 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 101 ms 52100 KB Output is correct
6 Correct 1 ms 2648 KB Output is correct

Subtask #3
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 127 ms 51820 KB Output is correct
2 Correct 96 ms 51912 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 2132 KB Output is correct
6 Correct 1 ms 852 KB Output is correct

Subtask #4
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 23 ms 14524 KB Output is correct
2 Correct 96 ms 53868 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 1876 KB Output is correct
6 Correct 1 ms 724 KB Output is correct

Subtask #5
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 92 ms 49536 KB Output is correct
2 Correct 94 ms 51236 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 2 ms 2632 KB Output is correct
6 Correct 1 ms 1876 KB Output is correct

Subtask #6
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 94 ms 51636 KB Output is correct
2 Correct 94 ms 50768 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 2 ms 2388 KB Output is correct
6 Correct 1 ms 1748 KB Output is correct

Subtask #7
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 95 ms 52492 KB Output is correct
2 Correct 92 ms 51096 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 91 ms 51216 KB Output is correct
6 Correct 2 ms 2132 KB Output is correct

Subtask #8
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 21 ms 13020 KB Output is correct
2 Correct 94 ms 52788 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 1748 KB Output is correct
6 Correct 1 ms 2640 KB Output is correct

Subtask #9
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 6484 KB Output is correct
2 Correct 97 ms 53300 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 1748 KB Output is correct
6 Correct 2 ms 2388 KB Output is correct

Subtask #10
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 45 ms 23560 KB Output is correct
2 Correct 99 ms 53200 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 42 ms 23812 KB Output is correct
6 Correct 1 ms 1360 KB Output is correct