#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;
}
| # |
Verdict |
Execution time |
Memory |
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 |
| # |
Verdict |
Execution time |
Memory |
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 |
| # |
Verdict |
Execution time |
Memory |
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 |
| # |
Verdict |
Execution time |
Memory |
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 |
