#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define vll vector<ll>
int n,k;
const int N=3e4+10;
bool vis[N];
vector<int> adj[N];
void init(int Q, int P)
{
n=Q;
k=P;
for(int i=0;(i+1)<k;i++)
adj[i].push_back(i+1);
}
bool cycle=0;
vector<int> path;
void dfs(int x,int p=-1)
{
path.push_back(x);
// cout<<x<<' '<<p<<endl;
vis[x]=1;
for(auto y:adj[x])
{
if(!vis[y])
{
dfs(y,x);
if(cycle)
return;
}
else{
// 0 4 3 y 1 8 9 7 6 .. 2 y
// | |
// this is a cycle
//
vll ex={y};
while(path.back()!=y)
{
ex.pb(path.back());
path.pop_back();
}
for(auto lp:ex)
{
if(lp<k)
{
cycle=1;
return;
}
}
while(ex.size())
{
path.pb(ex.back());
ex.pop_back();
}
}
}
cout<<endl;
path.pop_back();
}
int add_teleporter(int u, int v)
{
adj[u].push_back(v);
memset(vis,0,sizeof(vis));
for(int sp=0;sp<k;sp++)
{
if(!vis[sp])
{
path.clear();
cycle=0;
dfs(sp);
if(cycle)
{
return 1;
}
}
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1364 KB |
Output is correct |
2 |
Incorrect |
1 ms |
1112 KB |
Wrong Answer[1] |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1364 KB |
Output is correct |
2 |
Incorrect |
1 ms |
1112 KB |
Wrong Answer[1] |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1364 KB |
Output is correct |
2 |
Incorrect |
1 ms |
1112 KB |
Wrong Answer[1] |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1364 KB |
Output is correct |
2 |
Incorrect |
1 ms |
1112 KB |
Wrong Answer[1] |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1364 KB |
Output is correct |
2 |
Incorrect |
1 ms |
1112 KB |
Wrong Answer[1] |
3 |
Halted |
0 ms |
0 KB |
- |