#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define endl "\n"
#define all(aa) aa.begin(), aa.end()
int main(){
int n, m;
cin>>n>>m;
vector<int> v(n);
vector<vector<int>> g(n);
for(auto &e:v) cin>>e;
for(int i=0; i<m; i++){
int a, b;
cin>>a>>b;
a--; b--;
g[a].push_back(b);
g[b].push_back(a);
}
vector<int> ans(n, -1), ans2(n, -1), tm(n, -1), tm2(n, -1);
priority_queue<tuple<int, int, int>> pq;
pq.push({0, 0, 0});
while(pq.size()){
auto [t, h, cur]=pq.top();
pq.pop();
if(tm[cur]!=-1) continue;
t=tm[cur]=-t;
h=ans[cur]=-h;
for(auto ch:g[cur]){
pq.push({-max(v[ch], t+1), -max(h, v[ch]), ch});
}
}
pq.push({0, 0, n-1});
while(pq.size()){
auto [t, h, cur]=pq.top();
pq.pop();
if(tm2[cur]!=-1) continue;
h=ans2[cur]=-h;
t=tm2[cur]=-t;
for(auto ch:g[cur]){
pq.push({-max(v[ch], t+1), -max(h, v[ch]), ch});
}
}
int res=INT_MAX;
for(int i=0; i<n; i++){
res=min(res, tm[i]+tm2[i]+abs(ans[i]-ans2[i]));
}
cout<<res<<endl;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
141 ms |
15128 KB |
Output is correct |
3 |
Correct |
151 ms |
18740 KB |
Output is correct |
4 |
Correct |
156 ms |
19220 KB |
Output is correct |
5 |
Correct |
167 ms |
19540 KB |
Output is correct |
6 |
Correct |
170 ms |
19348 KB |
Output is correct |
7 |
Correct |
169 ms |
19340 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
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 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
2 ms |
452 KB |
Output is correct |
7 |
Correct |
2 ms |
604 KB |
Output is correct |
8 |
Correct |
3 ms |
604 KB |
Output is correct |
9 |
Correct |
2 ms |
604 KB |
Output is correct |
10 |
Correct |
2 ms |
444 KB |
Output is correct |
11 |
Correct |
3 ms |
604 KB |
Output is correct |
12 |
Correct |
2 ms |
604 KB |
Output is correct |
13 |
Correct |
2 ms |
556 KB |
Output is correct |
14 |
Correct |
3 ms |
604 KB |
Output is correct |
15 |
Correct |
4 ms |
604 KB |
Output is correct |
16 |
Correct |
5 ms |
860 KB |
Output is correct |
17 |
Correct |
4 ms |
604 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
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 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
2 ms |
452 KB |
Output is correct |
7 |
Correct |
2 ms |
604 KB |
Output is correct |
8 |
Correct |
3 ms |
604 KB |
Output is correct |
9 |
Correct |
2 ms |
604 KB |
Output is correct |
10 |
Correct |
2 ms |
444 KB |
Output is correct |
11 |
Correct |
3 ms |
604 KB |
Output is correct |
12 |
Correct |
2 ms |
604 KB |
Output is correct |
13 |
Correct |
2 ms |
556 KB |
Output is correct |
14 |
Correct |
3 ms |
604 KB |
Output is correct |
15 |
Correct |
4 ms |
604 KB |
Output is correct |
16 |
Correct |
5 ms |
860 KB |
Output is correct |
17 |
Correct |
4 ms |
604 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
3 ms |
604 KB |
Output is correct |
20 |
Correct |
2 ms |
604 KB |
Output is correct |
21 |
Correct |
2 ms |
604 KB |
Output is correct |
22 |
Correct |
3 ms |
448 KB |
Output is correct |
23 |
Correct |
3 ms |
600 KB |
Output is correct |
24 |
Correct |
3 ms |
604 KB |
Output is correct |
25 |
Correct |
3 ms |
604 KB |
Output is correct |
26 |
Correct |
3 ms |
604 KB |
Output is correct |
27 |
Correct |
4 ms |
604 KB |
Output is correct |
28 |
Correct |
4 ms |
700 KB |
Output is correct |
29 |
Correct |
4 ms |
604 KB |
Output is correct |
30 |
Correct |
5 ms |
700 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
141 ms |
15128 KB |
Output is correct |
3 |
Correct |
151 ms |
18740 KB |
Output is correct |
4 |
Correct |
156 ms |
19220 KB |
Output is correct |
5 |
Correct |
167 ms |
19540 KB |
Output is correct |
6 |
Correct |
170 ms |
19348 KB |
Output is correct |
7 |
Correct |
169 ms |
19340 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
2 ms |
452 KB |
Output is correct |
15 |
Correct |
2 ms |
604 KB |
Output is correct |
16 |
Correct |
3 ms |
604 KB |
Output is correct |
17 |
Correct |
2 ms |
604 KB |
Output is correct |
18 |
Correct |
2 ms |
444 KB |
Output is correct |
19 |
Correct |
3 ms |
604 KB |
Output is correct |
20 |
Correct |
2 ms |
604 KB |
Output is correct |
21 |
Correct |
2 ms |
556 KB |
Output is correct |
22 |
Correct |
3 ms |
604 KB |
Output is correct |
23 |
Correct |
4 ms |
604 KB |
Output is correct |
24 |
Correct |
5 ms |
860 KB |
Output is correct |
25 |
Correct |
4 ms |
604 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
3 ms |
604 KB |
Output is correct |
28 |
Correct |
2 ms |
604 KB |
Output is correct |
29 |
Correct |
2 ms |
604 KB |
Output is correct |
30 |
Correct |
3 ms |
448 KB |
Output is correct |
31 |
Correct |
3 ms |
600 KB |
Output is correct |
32 |
Correct |
3 ms |
604 KB |
Output is correct |
33 |
Correct |
3 ms |
604 KB |
Output is correct |
34 |
Correct |
3 ms |
604 KB |
Output is correct |
35 |
Correct |
4 ms |
604 KB |
Output is correct |
36 |
Correct |
4 ms |
700 KB |
Output is correct |
37 |
Correct |
4 ms |
604 KB |
Output is correct |
38 |
Correct |
5 ms |
700 KB |
Output is correct |
39 |
Correct |
289 ms |
19640 KB |
Output is correct |
40 |
Correct |
209 ms |
18840 KB |
Output is correct |
41 |
Correct |
230 ms |
19028 KB |
Output is correct |
42 |
Correct |
225 ms |
18768 KB |
Output is correct |
43 |
Correct |
211 ms |
18720 KB |
Output is correct |
44 |
Correct |
232 ms |
19184 KB |
Output is correct |
45 |
Correct |
229 ms |
18512 KB |
Output is correct |
46 |
Correct |
238 ms |
18768 KB |
Output is correct |
47 |
Correct |
227 ms |
18832 KB |
Output is correct |
48 |
Correct |
231 ms |
18556 KB |
Output is correct |
49 |
Correct |
308 ms |
19756 KB |
Output is correct |
50 |
Correct |
283 ms |
19464 KB |
Output is correct |
51 |
Correct |
244 ms |
19456 KB |
Output is correct |
52 |
Correct |
453 ms |
24616 KB |
Output is correct |
53 |
Correct |
437 ms |
24796 KB |
Output is correct |
54 |
Correct |
429 ms |
24324 KB |
Output is correct |
55 |
Correct |
478 ms |
22220 KB |
Output is correct |
56 |
Correct |
607 ms |
26060 KB |
Output is correct |
57 |
Correct |
601 ms |
27596 KB |
Output is correct |
58 |
Correct |
580 ms |
28108 KB |
Output is correct |
59 |
Correct |
590 ms |
28788 KB |
Output is correct |
60 |
Correct |
629 ms |
31684 KB |
Output is correct |
61 |
Correct |
609 ms |
26828 KB |
Output is correct |
62 |
Correct |
571 ms |
29172 KB |
Output is correct |
63 |
Correct |
581 ms |
30832 KB |
Output is correct |
64 |
Correct |
607 ms |
30264 KB |
Output is correct |
65 |
Correct |
585 ms |
31100 KB |
Output is correct |
66 |
Correct |
592 ms |
27084 KB |
Output is correct |
67 |
Correct |
605 ms |
26436 KB |
Output is correct |