#include <bits/stdc++.h>
using namespace std;
#define int long long
#define INF 1000000000000000000
#define MOD 998244353
vector<int> adj[200000];
int mx[5000][5000];
int dfs(int x, int l, int r) {
int ans = 0;
if(x != l) ans = max(ans, dfs(mx[l][x-1], l, x-1)+x-mx[l][x-1]);
if(x != r) ans = max(ans, dfs(mx[x+1][r], x+1, r)+mx[x+1][r]-x);
return ans;
}
int32_t main() {
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
int n, x, y;
cin >> n;
int p[n];
for(int i = 0; i < n; i++) cin >> p[i];
for(int i = 0; i < n-1; i++) {
cin >> x >> y;
x--; y--;
adj[x].push_back(y);
adj[y].push_back(x);
}
for(int i = 0; i < n; i++) {
for(int j = i; j < n; j++) {
if(i == j) mx[i][j] = i;
else if(p[mx[i][j-1]] > p[j]) mx[i][j] = mx[i][j-1];
else mx[i][j] = j;
}
}
cout << dfs(mx[0][n-1], 0, n-1);
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
5724 KB |
Output is correct |
2 |
Correct |
2 ms |
7772 KB |
Output is correct |
3 |
Correct |
2 ms |
7772 KB |
Output is correct |
4 |
Correct |
2 ms |
7772 KB |
Output is correct |
5 |
Correct |
2 ms |
7772 KB |
Output is correct |
6 |
Correct |
2 ms |
7772 KB |
Output is correct |
7 |
Correct |
1 ms |
5724 KB |
Output is correct |
8 |
Correct |
2 ms |
7768 KB |
Output is correct |
9 |
Correct |
2 ms |
7772 KB |
Output is correct |
10 |
Correct |
2 ms |
7772 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
5724 KB |
Output is correct |
2 |
Correct |
2 ms |
7772 KB |
Output is correct |
3 |
Correct |
2 ms |
7772 KB |
Output is correct |
4 |
Correct |
2 ms |
7772 KB |
Output is correct |
5 |
Correct |
2 ms |
7772 KB |
Output is correct |
6 |
Correct |
2 ms |
7772 KB |
Output is correct |
7 |
Correct |
1 ms |
5724 KB |
Output is correct |
8 |
Correct |
2 ms |
7768 KB |
Output is correct |
9 |
Correct |
2 ms |
7772 KB |
Output is correct |
10 |
Correct |
2 ms |
7772 KB |
Output is correct |
11 |
Correct |
3 ms |
18016 KB |
Output is correct |
12 |
Correct |
3 ms |
18088 KB |
Output is correct |
13 |
Correct |
3 ms |
18012 KB |
Output is correct |
14 |
Correct |
3 ms |
18012 KB |
Output is correct |
15 |
Correct |
3 ms |
18012 KB |
Output is correct |
16 |
Correct |
4 ms |
18012 KB |
Output is correct |
17 |
Correct |
3 ms |
18008 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
5724 KB |
Output is correct |
2 |
Correct |
2 ms |
7772 KB |
Output is correct |
3 |
Correct |
2 ms |
7772 KB |
Output is correct |
4 |
Correct |
2 ms |
7772 KB |
Output is correct |
5 |
Correct |
2 ms |
7772 KB |
Output is correct |
6 |
Correct |
2 ms |
7772 KB |
Output is correct |
7 |
Correct |
1 ms |
5724 KB |
Output is correct |
8 |
Correct |
2 ms |
7768 KB |
Output is correct |
9 |
Correct |
2 ms |
7772 KB |
Output is correct |
10 |
Correct |
2 ms |
7772 KB |
Output is correct |
11 |
Correct |
3 ms |
18016 KB |
Output is correct |
12 |
Correct |
3 ms |
18088 KB |
Output is correct |
13 |
Correct |
3 ms |
18012 KB |
Output is correct |
14 |
Correct |
3 ms |
18012 KB |
Output is correct |
15 |
Correct |
3 ms |
18012 KB |
Output is correct |
16 |
Correct |
4 ms |
18012 KB |
Output is correct |
17 |
Correct |
3 ms |
18008 KB |
Output is correct |
18 |
Correct |
67 ms |
201096 KB |
Output is correct |
19 |
Correct |
54 ms |
201296 KB |
Output is correct |
20 |
Correct |
54 ms |
201052 KB |
Output is correct |
21 |
Correct |
53 ms |
201016 KB |
Output is correct |
22 |
Correct |
54 ms |
201040 KB |
Output is correct |
23 |
Correct |
53 ms |
201036 KB |
Output is correct |
24 |
Correct |
54 ms |
201040 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
5724 KB |
Output is correct |
2 |
Correct |
2 ms |
7772 KB |
Output is correct |
3 |
Correct |
2 ms |
7772 KB |
Output is correct |
4 |
Correct |
2 ms |
7772 KB |
Output is correct |
5 |
Correct |
2 ms |
7772 KB |
Output is correct |
6 |
Correct |
2 ms |
7772 KB |
Output is correct |
7 |
Correct |
1 ms |
5724 KB |
Output is correct |
8 |
Correct |
2 ms |
7768 KB |
Output is correct |
9 |
Correct |
2 ms |
7772 KB |
Output is correct |
10 |
Correct |
2 ms |
7772 KB |
Output is correct |
11 |
Correct |
3 ms |
18016 KB |
Output is correct |
12 |
Correct |
3 ms |
18088 KB |
Output is correct |
13 |
Correct |
3 ms |
18012 KB |
Output is correct |
14 |
Correct |
3 ms |
18012 KB |
Output is correct |
15 |
Correct |
3 ms |
18012 KB |
Output is correct |
16 |
Correct |
4 ms |
18012 KB |
Output is correct |
17 |
Correct |
3 ms |
18008 KB |
Output is correct |
18 |
Correct |
67 ms |
201096 KB |
Output is correct |
19 |
Correct |
54 ms |
201296 KB |
Output is correct |
20 |
Correct |
54 ms |
201052 KB |
Output is correct |
21 |
Correct |
53 ms |
201016 KB |
Output is correct |
22 |
Correct |
54 ms |
201040 KB |
Output is correct |
23 |
Correct |
53 ms |
201036 KB |
Output is correct |
24 |
Correct |
54 ms |
201040 KB |
Output is correct |
25 |
Correct |
2 ms |
7768 KB |
Output is correct |
26 |
Incorrect |
53 ms |
201068 KB |
Output isn't correct |
27 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
5724 KB |
Output is correct |
2 |
Correct |
2 ms |
7772 KB |
Output is correct |
3 |
Correct |
2 ms |
7772 KB |
Output is correct |
4 |
Correct |
2 ms |
7772 KB |
Output is correct |
5 |
Correct |
2 ms |
7772 KB |
Output is correct |
6 |
Correct |
2 ms |
7772 KB |
Output is correct |
7 |
Correct |
1 ms |
5724 KB |
Output is correct |
8 |
Correct |
2 ms |
7768 KB |
Output is correct |
9 |
Correct |
2 ms |
7772 KB |
Output is correct |
10 |
Correct |
2 ms |
7772 KB |
Output is correct |
11 |
Correct |
3 ms |
18016 KB |
Output is correct |
12 |
Correct |
3 ms |
18088 KB |
Output is correct |
13 |
Correct |
3 ms |
18012 KB |
Output is correct |
14 |
Correct |
3 ms |
18012 KB |
Output is correct |
15 |
Correct |
3 ms |
18012 KB |
Output is correct |
16 |
Correct |
4 ms |
18012 KB |
Output is correct |
17 |
Correct |
3 ms |
18008 KB |
Output is correct |
18 |
Correct |
67 ms |
201096 KB |
Output is correct |
19 |
Correct |
54 ms |
201296 KB |
Output is correct |
20 |
Correct |
54 ms |
201052 KB |
Output is correct |
21 |
Correct |
53 ms |
201016 KB |
Output is correct |
22 |
Correct |
54 ms |
201040 KB |
Output is correct |
23 |
Correct |
53 ms |
201036 KB |
Output is correct |
24 |
Correct |
54 ms |
201040 KB |
Output is correct |
25 |
Execution timed out |
2056 ms |
177628 KB |
Time limit exceeded |
26 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
7772 KB |
Output is correct |
2 |
Incorrect |
3 ms |
13956 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
5724 KB |
Output is correct |
2 |
Correct |
2 ms |
7772 KB |
Output is correct |
3 |
Correct |
2 ms |
7772 KB |
Output is correct |
4 |
Correct |
2 ms |
7772 KB |
Output is correct |
5 |
Correct |
2 ms |
7772 KB |
Output is correct |
6 |
Correct |
2 ms |
7772 KB |
Output is correct |
7 |
Correct |
1 ms |
5724 KB |
Output is correct |
8 |
Correct |
2 ms |
7768 KB |
Output is correct |
9 |
Correct |
2 ms |
7772 KB |
Output is correct |
10 |
Correct |
2 ms |
7772 KB |
Output is correct |
11 |
Correct |
3 ms |
18016 KB |
Output is correct |
12 |
Correct |
3 ms |
18088 KB |
Output is correct |
13 |
Correct |
3 ms |
18012 KB |
Output is correct |
14 |
Correct |
3 ms |
18012 KB |
Output is correct |
15 |
Correct |
3 ms |
18012 KB |
Output is correct |
16 |
Correct |
4 ms |
18012 KB |
Output is correct |
17 |
Correct |
3 ms |
18008 KB |
Output is correct |
18 |
Correct |
67 ms |
201096 KB |
Output is correct |
19 |
Correct |
54 ms |
201296 KB |
Output is correct |
20 |
Correct |
54 ms |
201052 KB |
Output is correct |
21 |
Correct |
53 ms |
201016 KB |
Output is correct |
22 |
Correct |
54 ms |
201040 KB |
Output is correct |
23 |
Correct |
53 ms |
201036 KB |
Output is correct |
24 |
Correct |
54 ms |
201040 KB |
Output is correct |
25 |
Correct |
2 ms |
7768 KB |
Output is correct |
26 |
Incorrect |
53 ms |
201068 KB |
Output isn't correct |
27 |
Halted |
0 ms |
0 KB |
- |