#include<bits/stdc++.h>
#define ll long long
#define ntr "\n"
#define mod (ll)(1e9+7)
#define taskname ""
#define frep freopen(taskname".inp","r",stdin); freopen(taskname".out","w",stdout);
using namespace std;
vector<ll> adj[3001];
ll dist[3001];
ll vis[3001];
ll n;
ll q;
int main(){
ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
//frep;
cin>>n;
for(int i=1;i<=n;i++){
ll l,r;
cin>>l>>r;
for(int j=l;j<=r;j++){
adj[i].push_back(j);
}
}
cin>>q;
for(int i=1;i<=q;i++){
ll x;
cin>>x;
fill(dist+1,dist+n+1,1e18);
fill(vis+1,vis+n+1,0);
dist[x]=0;
queue<ll> q;
q.push(x);
while(!q.empty()){
ll u=q.front();
q.pop();
if(vis[u]) continue;
vis[u]=1;
for(auto v:adj[u]){
if(dist[v]>dist[u]+1){
dist[v]=dist[u]+1;
q.push(v);
}
}
}
ll mx=max(dist[1],dist[n]);
if(mx==1e18) cout<<-1;
else cout<<mx;
cout<<ntr;
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Runtime error |
740 ms |
1048576 KB |
Execution killed with signal 9 |
5 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
8 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
8 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
8 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Runtime error |
740 ms |
1048576 KB |
Execution killed with signal 9 |
5 |
Halted |
0 ms |
0 KB |
- |