#include <bits/stdc++.h>
using namespace std;
int cnd;
vector<pair<int,int> > adj[800005];
struct node{
int s,e,m;
int nd;
node *l,*r;
node(int S, int E){
s=S; e=E; m=(s+e)/2;
nd=cnd;
cnd++;
if(s!=e){
l=new node(s,m);
r=new node(m+1,e);
adj[l->nd].push_back({nd,0});
adj[r->nd].push_back({nd,0});
}
else{
adj[s].push_back({nd,0});
}
}
void addedge(int S, int E, int N){
if(S<=s&&e<=E){
adj[nd].push_back({N,1});
return;
}
if(E<=m) l->addedge(S,E,N);
else if(S>m) r->addedge(S,E,N);
else{
l->addedge(S,m,N);
r->addedge(m+1,E,N);
}
}
} *root;
int32_t main(){
ios::sync_with_stdio(0);
cin.tie(0);
int n;
cin >> n;
cnd=n+1;
root = new node(1,n);
deque<pair<int,pair<int,int> > > dq;
priority_queue<pair<int,pair<int,int> >,vector<pair<int,pair<int,int> > >,greater<pair<int,pair<int,int> > > > pq;
int dist[cnd][3];
memset(dist,-1,sizeof(dist));
for(int i=0; i<n; i++){
int a,b;
cin >> a >> b;
root->addedge(a,b,i+1);
if(a==1) dq.push_back({1,{1,i+1}});
if(b==n) dq.push_back({1,{2,i+1}});
}
while(!dq.empty()){
int a=dq.front().first,b=dq.front().second.first,c=dq.front().second.second;
dq.pop_front();
if(dist[c][b]!=-1) continue;
dist[c][b]=a;
for(auto i:adj[c]){
if(dist[i.first][b]==-1){
if(i.second==1) dq.push_back({a+i.second,{b,i.first}});
else dq.push_front({a+i.second,{b,i.first}});
}
}
}
for(int i=1; i<=n; i++){
//cout << dist[i][1] << ' ' << dist[i][2] << '\n';
if(dist[i][1]!=-1&&dist[i][2]!=-1){
pq.push({dist[i][1]+dist[i][2]-1,{0,i}});
}
}
while(!pq.empty()){
int a=pq.top().first,b=pq.top().second.first,c=pq.top().second.second;
pq.pop();
if(dist[c][b]!=-1) continue;
dist[c][b]=a;
for(auto i:adj[c]){
if(dist[i.first][b]==-1) pq.push({a+i.second,{b,i.first}});
}
}
int q;
cin >> q;
for(int i=0; i<q; i++){
int x;
cin >> x;
cout << dist[x][0] << '\n';
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
10 ms |
19028 KB |
Output is correct |
2 |
Correct |
11 ms |
19028 KB |
Output is correct |
3 |
Correct |
10 ms |
18996 KB |
Output is correct |
4 |
Correct |
1198 ms |
145780 KB |
Output is correct |
5 |
Correct |
447 ms |
75672 KB |
Output is correct |
6 |
Correct |
260 ms |
69956 KB |
Output is correct |
7 |
Correct |
214 ms |
73588 KB |
Output is correct |
8 |
Correct |
140 ms |
69960 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
11 ms |
19100 KB |
Output is correct |
2 |
Correct |
11 ms |
19004 KB |
Output is correct |
3 |
Correct |
10 ms |
19028 KB |
Output is correct |
4 |
Correct |
11 ms |
19108 KB |
Output is correct |
5 |
Correct |
10 ms |
19104 KB |
Output is correct |
6 |
Correct |
10 ms |
19064 KB |
Output is correct |
7 |
Correct |
11 ms |
19028 KB |
Output is correct |
8 |
Correct |
11 ms |
19064 KB |
Output is correct |
9 |
Correct |
10 ms |
19036 KB |
Output is correct |
10 |
Correct |
10 ms |
19028 KB |
Output is correct |
11 |
Correct |
11 ms |
19224 KB |
Output is correct |
12 |
Correct |
11 ms |
19184 KB |
Output is correct |
13 |
Correct |
11 ms |
19156 KB |
Output is correct |
14 |
Correct |
11 ms |
19188 KB |
Output is correct |
15 |
Correct |
11 ms |
19084 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
11 ms |
19100 KB |
Output is correct |
2 |
Correct |
11 ms |
19004 KB |
Output is correct |
3 |
Correct |
10 ms |
19028 KB |
Output is correct |
4 |
Correct |
11 ms |
19108 KB |
Output is correct |
5 |
Correct |
10 ms |
19104 KB |
Output is correct |
6 |
Correct |
10 ms |
19064 KB |
Output is correct |
7 |
Correct |
11 ms |
19028 KB |
Output is correct |
8 |
Correct |
11 ms |
19064 KB |
Output is correct |
9 |
Correct |
10 ms |
19036 KB |
Output is correct |
10 |
Correct |
10 ms |
19028 KB |
Output is correct |
11 |
Correct |
11 ms |
19224 KB |
Output is correct |
12 |
Correct |
11 ms |
19184 KB |
Output is correct |
13 |
Correct |
11 ms |
19156 KB |
Output is correct |
14 |
Correct |
11 ms |
19188 KB |
Output is correct |
15 |
Correct |
11 ms |
19084 KB |
Output is correct |
16 |
Correct |
16 ms |
20204 KB |
Output is correct |
17 |
Correct |
14 ms |
19796 KB |
Output is correct |
18 |
Correct |
15 ms |
20052 KB |
Output is correct |
19 |
Correct |
15 ms |
20064 KB |
Output is correct |
20 |
Correct |
13 ms |
19744 KB |
Output is correct |
21 |
Correct |
13 ms |
19804 KB |
Output is correct |
22 |
Correct |
12 ms |
19668 KB |
Output is correct |
23 |
Correct |
14 ms |
19924 KB |
Output is correct |
24 |
Correct |
13 ms |
19876 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
11 ms |
19100 KB |
Output is correct |
2 |
Correct |
11 ms |
19004 KB |
Output is correct |
3 |
Correct |
10 ms |
19028 KB |
Output is correct |
4 |
Correct |
11 ms |
19108 KB |
Output is correct |
5 |
Correct |
10 ms |
19104 KB |
Output is correct |
6 |
Correct |
10 ms |
19064 KB |
Output is correct |
7 |
Correct |
11 ms |
19028 KB |
Output is correct |
8 |
Correct |
11 ms |
19064 KB |
Output is correct |
9 |
Correct |
10 ms |
19036 KB |
Output is correct |
10 |
Correct |
10 ms |
19028 KB |
Output is correct |
11 |
Correct |
11 ms |
19224 KB |
Output is correct |
12 |
Correct |
11 ms |
19184 KB |
Output is correct |
13 |
Correct |
11 ms |
19156 KB |
Output is correct |
14 |
Correct |
11 ms |
19188 KB |
Output is correct |
15 |
Correct |
11 ms |
19084 KB |
Output is correct |
16 |
Correct |
16 ms |
20204 KB |
Output is correct |
17 |
Correct |
14 ms |
19796 KB |
Output is correct |
18 |
Correct |
15 ms |
20052 KB |
Output is correct |
19 |
Correct |
15 ms |
20064 KB |
Output is correct |
20 |
Correct |
13 ms |
19744 KB |
Output is correct |
21 |
Correct |
13 ms |
19804 KB |
Output is correct |
22 |
Correct |
12 ms |
19668 KB |
Output is correct |
23 |
Correct |
14 ms |
19924 KB |
Output is correct |
24 |
Correct |
13 ms |
19876 KB |
Output is correct |
25 |
Correct |
10 ms |
19028 KB |
Output is correct |
26 |
Correct |
10 ms |
19076 KB |
Output is correct |
27 |
Correct |
17 ms |
20180 KB |
Output is correct |
28 |
Correct |
15 ms |
19796 KB |
Output is correct |
29 |
Correct |
14 ms |
19808 KB |
Output is correct |
30 |
Correct |
13 ms |
19732 KB |
Output is correct |
31 |
Correct |
14 ms |
19896 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
10 ms |
19028 KB |
Output is correct |
2 |
Correct |
11 ms |
19028 KB |
Output is correct |
3 |
Correct |
10 ms |
18996 KB |
Output is correct |
4 |
Correct |
1198 ms |
145780 KB |
Output is correct |
5 |
Correct |
447 ms |
75672 KB |
Output is correct |
6 |
Correct |
260 ms |
69956 KB |
Output is correct |
7 |
Correct |
214 ms |
73588 KB |
Output is correct |
8 |
Correct |
140 ms |
69960 KB |
Output is correct |
9 |
Correct |
11 ms |
19100 KB |
Output is correct |
10 |
Correct |
11 ms |
19004 KB |
Output is correct |
11 |
Correct |
10 ms |
19028 KB |
Output is correct |
12 |
Correct |
11 ms |
19108 KB |
Output is correct |
13 |
Correct |
10 ms |
19104 KB |
Output is correct |
14 |
Correct |
10 ms |
19064 KB |
Output is correct |
15 |
Correct |
11 ms |
19028 KB |
Output is correct |
16 |
Correct |
11 ms |
19064 KB |
Output is correct |
17 |
Correct |
10 ms |
19036 KB |
Output is correct |
18 |
Correct |
10 ms |
19028 KB |
Output is correct |
19 |
Correct |
11 ms |
19224 KB |
Output is correct |
20 |
Correct |
11 ms |
19184 KB |
Output is correct |
21 |
Correct |
11 ms |
19156 KB |
Output is correct |
22 |
Correct |
11 ms |
19188 KB |
Output is correct |
23 |
Correct |
11 ms |
19084 KB |
Output is correct |
24 |
Correct |
16 ms |
20204 KB |
Output is correct |
25 |
Correct |
14 ms |
19796 KB |
Output is correct |
26 |
Correct |
15 ms |
20052 KB |
Output is correct |
27 |
Correct |
15 ms |
20064 KB |
Output is correct |
28 |
Correct |
13 ms |
19744 KB |
Output is correct |
29 |
Correct |
13 ms |
19804 KB |
Output is correct |
30 |
Correct |
12 ms |
19668 KB |
Output is correct |
31 |
Correct |
14 ms |
19924 KB |
Output is correct |
32 |
Correct |
13 ms |
19876 KB |
Output is correct |
33 |
Correct |
10 ms |
19028 KB |
Output is correct |
34 |
Correct |
10 ms |
19076 KB |
Output is correct |
35 |
Correct |
17 ms |
20180 KB |
Output is correct |
36 |
Correct |
15 ms |
19796 KB |
Output is correct |
37 |
Correct |
14 ms |
19808 KB |
Output is correct |
38 |
Correct |
13 ms |
19732 KB |
Output is correct |
39 |
Correct |
14 ms |
19896 KB |
Output is correct |
40 |
Correct |
1269 ms |
144772 KB |
Output is correct |
41 |
Correct |
485 ms |
78336 KB |
Output is correct |
42 |
Correct |
525 ms |
105444 KB |
Output is correct |
43 |
Correct |
534 ms |
116272 KB |
Output is correct |
44 |
Correct |
306 ms |
72288 KB |
Output is correct |
45 |
Correct |
299 ms |
78800 KB |
Output is correct |
46 |
Correct |
159 ms |
43980 KB |
Output is correct |
47 |
Correct |
464 ms |
89536 KB |
Output is correct |
48 |
Correct |
454 ms |
92680 KB |
Output is correct |