oj.uz

답안 #555745

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
555745 2022-05-01T12:49:40 Z new_acc Burza (COCI16_burza) C++14
160 / 160
 247 ms 151436 KB 
#include<bits/stdc++.h>
#define fi first
#define se second
#define pitem item*
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef vector<int> vi;
typedef vector<ll> vl;
const int N=400+10;
const int SS=1<<19;
const int INFi=2e9;
const ll INFl=1e13;
const ll mod2=998244353;
const ll mod=1e9+7;
const ll mod3=1000696969;
const ll p=70032301;
const ull p2=913;
const int L=20;
bitset<(1<<20)+1> dp[N*2][2];
bool pod[N];
vi graf[N];
int n,k,wsk,pierw[N],level[N];
void dfs(int v,int o){
    if(level[v]==k-1) pod[v]=1;
    for(auto u:graf[v]){
        if(u==o) continue;
        level[u]=level[v]+1;
        dfs(u,v);
        pod[v]|=pod[u];
    }
}
void dfs2(int v,int o){
    wsk++;
    pierw[v]=wsk;
    if(v!=1){
        for(int i=0;i<(1<<k);i++){
            if(i&(1<<level[v])) dp[wsk][1][i]=max(dp[wsk-1][1][i],dp[wsk-1][0][i-(1<<level[v])]); 
            else dp[wsk][1][i]=dp[wsk-1][1][i];
        }
        if(level[v]!=k-1) dp[wsk][0]=dp[wsk-1][0];
        else dp[wsk][0]=dp[wsk][1];
    }
    for(auto u:graf[v]){
        if(u==o or !pod[u] or level[u]==k) continue;
        dfs2(u,v);
    }
    if(v==1) return;
    wsk++;
    dp[wsk][0]=dp[wsk-1][0],dp[wsk][1]=dp[pierw[o]][1]; 
}
void solve(){
    cin>>n>>k;
    for(int a,b,i=1;i<n;i++){
        cin>>a>>b;
        graf[a].push_back(b),graf[b].push_back(a);
    }
    if(k*k>=n){
        cout<<"DA\n";
        return;
    }
    level[1]=-1;
    dfs(1,1);
    for(int i=0;i<(1<<k);i++) dp[1][0][i]=1;
    dfs2(1,1);
    cout<<(dp[wsk][0][(1<<k)-1]?"DA":"NE")<<"\n";
}
int main(){
    ios_base::sync_with_stdio(0),cin.tie(0);
    int tt=1;
    while(tt--) solve();
}

Subtask #1
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 65 ms 113868 KB Output is correct
2 Correct 238 ms 150584 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 60 ms 139172 KB Output is correct
6 Correct 12 ms 24788 KB Output is correct

Subtask #2
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 236 ms 144132 KB Output is correct
2 Correct 226 ms 144040 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 224 ms 144908 KB Output is correct
6 Correct 61 ms 144972 KB Output is correct

Subtask #3
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 230 ms 145000 KB Output is correct
2 Correct 231 ms 144508 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 47 ms 111580 KB Output is correct
6 Correct 13 ms 30292 KB Output is correct

Subtask #4
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 101 ms 136652 KB Output is correct
2 Correct 236 ms 151436 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 38 ms 94764 KB Output is correct
6 Correct 10 ms 21716 KB Output is correct

Subtask #5
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 218 ms 138448 KB Output is correct
2 Correct 231 ms 143692 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 62 ms 141568 KB Output is correct
6 Correct 44 ms 99484 KB Output is correct

Subtask #6
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 247 ms 145804 KB Output is correct
2 Correct 229 ms 141712 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 56 ms 129096 KB Output is correct
6 Correct 39 ms 83532 KB Output is correct

Subtask #7
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 239 ms 147388 KB Output is correct
2 Correct 241 ms 142928 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 232 ms 142452 KB Output is correct
6 Correct 52 ms 112716 KB Output is correct

Subtask #8
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 92 ms 121360 KB Output is correct
2 Correct 233 ms 148608 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 42 ms 83484 KB Output is correct
6 Correct 66 ms 145444 KB Output is correct

Subtask #9
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 60 ms 99948 KB Output is correct
2 Correct 233 ms 148556 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 41 ms 85448 KB Output is correct
6 Correct 59 ms 130272 KB Output is correct

Subtask #10
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 125 ms 121144 KB Output is correct
2 Correct 235 ms 148988 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 134 ms 123112 KB Output is correct
6 Correct 28 ms 58968 KB Output is correct