#include "speedrun.h"
#include <bits/stdc++.h>
using namespace std;
#define pf printf
#define pb push_back
vector<int> AL[1005],pre;
int par[1005],nx[1005];
void dfs(int u,int p){
par[u]=p;pre.pb(u);
for(int v:AL[u]){
if(v!=p)dfs(v,u);
}
}
void assignHints(int subtask, int N, int A[], int B[]) { /* your solution here */
for(int i=1;i<N;++i)AL[A[i]].pb(B[i]),AL[B[i]].pb(A[i]);
dfs(1,0);pre.pb(0);
setHintLen(20);
for(int i=1;i<=N;++i){
for(int j=1;j<=10;++j)if(par[i]&(1<<(j-1)))setHint(i,j,1);
for(int j=11;j<=20;++j)if(pre[i]&(1<<(j-11)))setHint(i,j,1);
}
}
void speedrun(int subtask, int N, int start) { /* your solution here */
int cur=start;
memset(par,-1,sizeof par);
memset(nx,-1,sizeof nx);
while(cur!=1){
if(par[cur]==-1){
par[cur]=0,nx[cur]=0;
for(int j=1;j<=10;++j)if(getHint(j))par[cur]+=1<<(j-1);
for(int j=11;j<=20;++j)if(getHint(j))nx[cur]+=1<<(j-11);
}
goTo(par[cur]);cur=par[cur];
}
while(true){//Euler tour
if(par[cur]==-1){
par[cur]=0,nx[cur]=0;
for(int j=1;j<=10;++j)if(getHint(j))par[cur]+=1<<(j-1);
for(int j=11;j<=20;++j)if(getHint(j))nx[cur]+=1<<(j-11);
}
if(nx[cur]==0)break;
int to=nx[cur];
while(!goTo(to)){
goTo(par[cur]);
cur=par[cur];
}
cur=to;
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
70 ms |
676 KB |
Invalid node index to goTo |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
74 ms |
712 KB |
Solution didn't visit every node |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
53 ms |
672 KB |
Invalid node index to goTo |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
82 ms |
700 KB |
Invalid node index to goTo |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
79 ms |
696 KB |
Invalid node index to goTo |
2 |
Halted |
0 ms |
0 KB |
- |