oj.uz

답안 #953104

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
953104 2024-03-25T13:53:55 Z PM1 File Paths (BOI15_fil) C++17
33 / 100
 28 ms 2908 KB 
#include <bits/stdc++.h>
using namespace std;
const int mxn=3e3+5,mxs=1e6+5;
int n,m,s,k,par[mxn*2],dis[mxn*2];
bitset<mxn>b[mxs];
vector<int>all,v[mxn];
bool mark[mxs],ans[mxn*2];
void make(int x,bool y){
	int z=x;
	while(x!=0){
		x=par[x];
		int d=dis[z]-dis[x];
		if(d<=k)mark[d]=y;
	}
}
void dfs(int z){
	b[z]=(b[par[z]]<<(dis[z]-dis[par[z]]));
	b[z][s]=1;
	for(auto i:v[z]){
		dfs(i);
	}
}
int main(){
	ios::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	cin>>n>>m>>k>>s;
	s++;
	for(int i=1;i<=n+m;i++){
		int x,y;
		cin>>x>>y;
		par[i]=x;
		dis[i]=dis[x]+y+1;
		if(i<=n){
			all.push_back(dis[i]);
			v[x].push_back(i);
		}
	}
	all.push_back(0);
	for(int i=n+1;i<=n+m;i++){
		make(i,1);
		if(dis[i]==k)ans[i]=1;
		for(auto j:all){
			int res=k-j-s;
			if(res>=0 && mark[res])ans[i]=1;
		}
		make(i,0);
	}
	
	for(int i=n+1;i<=n+m;i++){
		if(ans[i])
			cout<<"YES"<<'\n';
		else
			cout<<"NO"<<'\n';
	}
	return 0;
}

Subtask #1
0 / 33.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 2396 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
33.0 / 33.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 2796 KB Output is correct
2 Correct 13 ms 2772 KB Output is correct
3 Correct 12 ms 2652 KB Output is correct
4 Correct 13 ms 2652 KB Output is correct
5 Correct 28 ms 2908 KB Output is correct
6 Correct 28 ms 2904 KB Output is correct
7 Correct 21 ms 2648 KB Output is correct
8 Correct 23 ms 2652 KB Output is correct
9 Correct 13 ms 2652 KB Output is correct
10 Correct 11 ms 2652 KB Output is correct
11 Correct 10 ms 2652 KB Output is correct
12 Correct 27 ms 2720 KB Output is correct

Subtask #3
0 / 34.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 2396 KB Output isn't correct
2 Halted 0 ms 0 KB -