| # | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
|---|---|---|---|---|---|---|---|
| 218124 | 2020-04-01T09:42:51 Z | dolphingarlic | File Paths (BOI15_fil) | C++14 | 297 ms | 8184 KB |
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
const int N=6050;
const int K=2000050;
int par[N],len[N],dep[N],n,m,k,s;
bool ok[N];
vector<int> E[N];
int can[K],cyc[K];
void Add(int u,int f,int p){
if(u<=n)cyc[dep[u]-dep[p]+s+1]+=f;
for(int v:E[u])Add(v,f,p);
}
void DFS(int u){
if(u>n){
int tmp=k-dep[u];
if(tmp==0)ok[u]=1;
for(int i=1;i*i<=tmp;i++)if(tmp%i==0){
if(cyc[i]||cyc[tmp/i])ok[u]=1;
}
for(int v=par[u];v!=-1;v=par[v]){
if(k-dep[u]+dep[v]-s-1<0)continue;
if(can[k-dep[u]+dep[v]-s-1])ok[u]=1;
}
}else{
for(int v=u;v!=-1;v=par[v]){
cyc[dep[u]-dep[v]+s+1]++;
}
Add(u,1,u);
}
for(int v:E[u])DFS(v);
if(u<=n){
for(int v=u;v!=-1;v=par[v]){
cyc[dep[u]-dep[v]+s+1]--;
}
Add(u,-1,u);
}
}
int main(){
scanf("%i %i %i %i",&n,&m,&k,&s);
dep[0]=0;par[0]=-1;can[0]=1;
for(int i=1;i<=n+m;i++){
scanf("%i %i",&par[i],&len[i]);
E[par[i]].pb(i);
dep[i]=dep[par[i]]+len[i]+1;
if(i<=n && dep[i]<K)can[dep[i]]++;
}
for(int i=0;i<=n;i++)cyc[dep[i]+s+1]++;
DFS(0);
for(int i=n+1;i<=n+m;i++)printf("%s\n",ok[i]?"YES":"NO");
return 0;
}
Compilation message
| # | 결과 | 실행 시간 | 메모리 | Grader output |
|---|---|---|---|---|
| 1 | Correct | 5 ms | 512 KB | Output is correct |
| 2 | Correct | 5 ms | 640 KB | Output is correct |
| 3 | Correct | 6 ms | 1280 KB | Output is correct |
| 4 | Correct | 9 ms | 1152 KB | Output is correct |
| 5 | Correct | 11 ms | 5376 KB | Output is correct |
| 6 | Correct | 10 ms | 3968 KB | Output is correct |
| 7 | Correct | 16 ms | 6400 KB | Output is correct |
| 8 | Correct | 8 ms | 5120 KB | Output is correct |
| 9 | Correct | 8 ms | 5248 KB | Output is correct |
| 10 | Correct | 5 ms | 512 KB | Output is correct |
| 11 | Correct | 5 ms | 384 KB | Output is correct |
| 12 | Correct | 9 ms | 1024 KB | Output is correct |
| # | 결과 | 실행 시간 | 메모리 | Grader output |
|---|---|---|---|---|
| 1 | Correct | 17 ms | 7552 KB | Output is correct |
| 2 | Correct | 18 ms | 7680 KB | Output is correct |
| 3 | Correct | 17 ms | 7552 KB | Output is correct |
| 4 | Correct | 17 ms | 7552 KB | Output is correct |
| 5 | Correct | 235 ms | 8064 KB | Output is correct |
| 6 | Correct | 246 ms | 8184 KB | Output is correct |
| 7 | Correct | 135 ms | 7168 KB | Output is correct |
| 8 | Correct | 138 ms | 7168 KB | Output is correct |
| 9 | Correct | 19 ms | 7168 KB | Output is correct |
| 10 | Correct | 16 ms | 7040 KB | Output is correct |
| 11 | Correct | 13 ms | 768 KB | Output is correct |
| 12 | Correct | 222 ms | 3456 KB | Output is correct |
| # | 결과 | 실행 시간 | 메모리 | Grader output |
|---|---|---|---|---|
| 1 | Correct | 5 ms | 512 KB | Output is correct |
| 2 | Correct | 5 ms | 640 KB | Output is correct |
| 3 | Correct | 6 ms | 1280 KB | Output is correct |
| 4 | Correct | 9 ms | 1152 KB | Output is correct |
| 5 | Correct | 11 ms | 5376 KB | Output is correct |
| 6 | Correct | 10 ms | 3968 KB | Output is correct |
| 7 | Correct | 16 ms | 6400 KB | Output is correct |
| 8 | Correct | 8 ms | 5120 KB | Output is correct |
| 9 | Correct | 8 ms | 5248 KB | Output is correct |
| 10 | Correct | 5 ms | 512 KB | Output is correct |
| 11 | Correct | 5 ms | 384 KB | Output is correct |
| 12 | Correct | 9 ms | 1024 KB | Output is correct |
| 13 | Correct | 17 ms | 7552 KB | Output is correct |
| 14 | Correct | 18 ms | 7680 KB | Output is correct |
| 15 | Correct | 17 ms | 7552 KB | Output is correct |
| 16 | Correct | 17 ms | 7552 KB | Output is correct |
| 17 | Correct | 235 ms | 8064 KB | Output is correct |
| 18 | Correct | 246 ms | 8184 KB | Output is correct |
| 19 | Correct | 135 ms | 7168 KB | Output is correct |
| 20 | Correct | 138 ms | 7168 KB | Output is correct |
| 21 | Correct | 19 ms | 7168 KB | Output is correct |
| 22 | Correct | 16 ms | 7040 KB | Output is correct |
| 23 | Correct | 13 ms | 768 KB | Output is correct |
| 24 | Correct | 222 ms | 3456 KB | Output is correct |
| 25 | Correct | 17 ms | 7680 KB | Output is correct |
| 26 | Correct | 17 ms | 7552 KB | Output is correct |
| 27 | Correct | 17 ms | 7552 KB | Output is correct |
| 28 | Correct | 17 ms | 7552 KB | Output is correct |
| 29 | Correct | 244 ms | 8120 KB | Output is correct |
| 30 | Correct | 265 ms | 7976 KB | Output is correct |
| 31 | Correct | 150 ms | 7288 KB | Output is correct |
| 32 | Correct | 138 ms | 7168 KB | Output is correct |
| 33 | Correct | 16 ms | 7168 KB | Output is correct |
| 34 | Correct | 15 ms | 7040 KB | Output is correct |
| 35 | Correct | 13 ms | 768 KB | Output is correct |
| 36 | Correct | 297 ms | 2168 KB | Output is correct |