#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
#define rep(a,b) for(int a = 0; a < (b); ++a)
#define all(t) t.begin(), t.end()
#define pb push_back
const int N = 5e5+5, INF = 2e9+54321;
const ll INF_L = (ll)2e18+54321;
int n,wie,mx,odl,nrw;
int A[N];
vector<int> G[N];
bool vis[N];
void DFS2(int v, int par, int di)
{
mx = max(mx,A[v]);
if(mx == A[v]) odl = di, nrw = v;
for(auto x : G[v])
{
if(x == par or vis[x]) continue;
DFS2(x,v,di+1);
}
}
ll DFS(int v)
{
//cout << "VV: " << v << '\n';
vis[v] = 1;
ll val = 0;
for(auto x : G[v])
{
mx = -1, odl = 0;
if(!vis[x])
{
DFS2(x,v,1);
val = max(val,odl+DFS(nrw));
}
}
//cout << "V: " << v << " VAL: " << val << '\n';
return val;
}
void solve()
{
cin >> n;
for(int i = 1; i <= n; ++i) cin >> A[i];
rep(i,n-1)
{
int a,b;
cin >> a >> b;
G[a].pb(b), G[b].pb(a);
}
for(int i = 1; i <= n; ++i) if(A[i] == n) wie = i;
cout << DFS(wie) << '\n';
}
int main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
int T = 1;
//cin >> T;
while(T--) solve();
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 2 |
Correct |
4 ms |
12124 KB |
Output is correct |
| 3 |
Correct |
6 ms |
12124 KB |
Output is correct |
| 4 |
Correct |
5 ms |
12212 KB |
Output is correct |
| 5 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 6 |
Correct |
5 ms |
12208 KB |
Output is correct |
| 7 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 8 |
Correct |
5 ms |
12120 KB |
Output is correct |
| 9 |
Correct |
6 ms |
12124 KB |
Output is correct |
| 10 |
Correct |
5 ms |
12124 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 2 |
Correct |
4 ms |
12124 KB |
Output is correct |
| 3 |
Correct |
6 ms |
12124 KB |
Output is correct |
| 4 |
Correct |
5 ms |
12212 KB |
Output is correct |
| 5 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 6 |
Correct |
5 ms |
12208 KB |
Output is correct |
| 7 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 8 |
Correct |
5 ms |
12120 KB |
Output is correct |
| 9 |
Correct |
6 ms |
12124 KB |
Output is correct |
| 10 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 11 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 12 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 13 |
Correct |
5 ms |
12216 KB |
Output is correct |
| 14 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 15 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 16 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 17 |
Correct |
5 ms |
12124 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 2 |
Correct |
4 ms |
12124 KB |
Output is correct |
| 3 |
Correct |
6 ms |
12124 KB |
Output is correct |
| 4 |
Correct |
5 ms |
12212 KB |
Output is correct |
| 5 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 6 |
Correct |
5 ms |
12208 KB |
Output is correct |
| 7 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 8 |
Correct |
5 ms |
12120 KB |
Output is correct |
| 9 |
Correct |
6 ms |
12124 KB |
Output is correct |
| 10 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 11 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 12 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 13 |
Correct |
5 ms |
12216 KB |
Output is correct |
| 14 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 15 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 16 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 17 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 18 |
Correct |
86 ms |
12636 KB |
Output is correct |
| 19 |
Correct |
76 ms |
12748 KB |
Output is correct |
| 20 |
Correct |
75 ms |
12632 KB |
Output is correct |
| 21 |
Correct |
6 ms |
12632 KB |
Output is correct |
| 22 |
Correct |
6 ms |
12448 KB |
Output is correct |
| 23 |
Correct |
7 ms |
12636 KB |
Output is correct |
| 24 |
Correct |
6 ms |
12380 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 2 |
Correct |
4 ms |
12124 KB |
Output is correct |
| 3 |
Correct |
6 ms |
12124 KB |
Output is correct |
| 4 |
Correct |
5 ms |
12212 KB |
Output is correct |
| 5 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 6 |
Correct |
5 ms |
12208 KB |
Output is correct |
| 7 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 8 |
Correct |
5 ms |
12120 KB |
Output is correct |
| 9 |
Correct |
6 ms |
12124 KB |
Output is correct |
| 10 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 11 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 12 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 13 |
Correct |
5 ms |
12216 KB |
Output is correct |
| 14 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 15 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 16 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 17 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 18 |
Correct |
86 ms |
12636 KB |
Output is correct |
| 19 |
Correct |
76 ms |
12748 KB |
Output is correct |
| 20 |
Correct |
75 ms |
12632 KB |
Output is correct |
| 21 |
Correct |
6 ms |
12632 KB |
Output is correct |
| 22 |
Correct |
6 ms |
12448 KB |
Output is correct |
| 23 |
Correct |
7 ms |
12636 KB |
Output is correct |
| 24 |
Correct |
6 ms |
12380 KB |
Output is correct |
| 25 |
Correct |
5 ms |
12212 KB |
Output is correct |
| 26 |
Correct |
87 ms |
12672 KB |
Output is correct |
| 27 |
Correct |
88 ms |
12632 KB |
Output is correct |
| 28 |
Correct |
85 ms |
12632 KB |
Output is correct |
| 29 |
Correct |
83 ms |
12632 KB |
Output is correct |
| 30 |
Correct |
9 ms |
12376 KB |
Output is correct |
| 31 |
Correct |
11 ms |
12256 KB |
Output is correct |
| 32 |
Correct |
10 ms |
12472 KB |
Output is correct |
| 33 |
Correct |
10 ms |
12380 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 2 |
Correct |
4 ms |
12124 KB |
Output is correct |
| 3 |
Correct |
6 ms |
12124 KB |
Output is correct |
| 4 |
Correct |
5 ms |
12212 KB |
Output is correct |
| 5 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 6 |
Correct |
5 ms |
12208 KB |
Output is correct |
| 7 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 8 |
Correct |
5 ms |
12120 KB |
Output is correct |
| 9 |
Correct |
6 ms |
12124 KB |
Output is correct |
| 10 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 11 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 12 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 13 |
Correct |
5 ms |
12216 KB |
Output is correct |
| 14 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 15 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 16 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 17 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 18 |
Correct |
86 ms |
12636 KB |
Output is correct |
| 19 |
Correct |
76 ms |
12748 KB |
Output is correct |
| 20 |
Correct |
75 ms |
12632 KB |
Output is correct |
| 21 |
Correct |
6 ms |
12632 KB |
Output is correct |
| 22 |
Correct |
6 ms |
12448 KB |
Output is correct |
| 23 |
Correct |
7 ms |
12636 KB |
Output is correct |
| 24 |
Correct |
6 ms |
12380 KB |
Output is correct |
| 25 |
Execution timed out |
2061 ms |
35288 KB |
Time limit exceeded |
| 26 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
12120 KB |
Output is correct |
| 2 |
Correct |
5 ms |
12028 KB |
Output is correct |
| 3 |
Execution timed out |
2024 ms |
23164 KB |
Time limit exceeded |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 2 |
Correct |
4 ms |
12124 KB |
Output is correct |
| 3 |
Correct |
6 ms |
12124 KB |
Output is correct |
| 4 |
Correct |
5 ms |
12212 KB |
Output is correct |
| 5 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 6 |
Correct |
5 ms |
12208 KB |
Output is correct |
| 7 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 8 |
Correct |
5 ms |
12120 KB |
Output is correct |
| 9 |
Correct |
6 ms |
12124 KB |
Output is correct |
| 10 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 11 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 12 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 13 |
Correct |
5 ms |
12216 KB |
Output is correct |
| 14 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 15 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 16 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 17 |
Correct |
5 ms |
12124 KB |
Output is correct |
| 18 |
Correct |
86 ms |
12636 KB |
Output is correct |
| 19 |
Correct |
76 ms |
12748 KB |
Output is correct |
| 20 |
Correct |
75 ms |
12632 KB |
Output is correct |
| 21 |
Correct |
6 ms |
12632 KB |
Output is correct |
| 22 |
Correct |
6 ms |
12448 KB |
Output is correct |
| 23 |
Correct |
7 ms |
12636 KB |
Output is correct |
| 24 |
Correct |
6 ms |
12380 KB |
Output is correct |
| 25 |
Correct |
5 ms |
12212 KB |
Output is correct |
| 26 |
Correct |
87 ms |
12672 KB |
Output is correct |
| 27 |
Correct |
88 ms |
12632 KB |
Output is correct |
| 28 |
Correct |
85 ms |
12632 KB |
Output is correct |
| 29 |
Correct |
83 ms |
12632 KB |
Output is correct |
| 30 |
Correct |
9 ms |
12376 KB |
Output is correct |
| 31 |
Correct |
11 ms |
12256 KB |
Output is correct |
| 32 |
Correct |
10 ms |
12472 KB |
Output is correct |
| 33 |
Correct |
10 ms |
12380 KB |
Output is correct |
| 34 |
Execution timed out |
2061 ms |
35288 KB |
Time limit exceeded |
| 35 |
Halted |
0 ms |
0 KB |
- |
