#include "sequence.h"
#include <bits/stdc++.h>
using namespace std;
const int maxn = 5e5 + 10;
vector < int > occ[maxn];
int val[maxn], pref[maxn];
int sequence(int N, vector<int> A)
{
A.insert(A.begin(), 0);
for (int i = 1; i <= N; i ++)
occ[A[i]].push_back(i);
int ans = 0;
for (int x = 1; x <= N; x ++)
{
for (int i = 1; i <= N; i ++)
{
if (A[i] < x)
val[i] = -1;
else
if (A[i] == x)
val[i] = 0;
else
val[i] = 1;
pref[i] = pref[i - 1] + val[i];
}
for (int i = 0; i < occ[x].size(); i ++)
{
for (int j = i; j < occ[x].size(); j ++)
{
//cout << "-----------" << endl;
//cout << x << " " << i << " " << j << " " << ans << endl;
///cout << pref[r] << endl;
int l = occ[x][i], r = occ[x][j];
int min_lf = 1e9, max_lf = -1e9;
int min_rf = 1e9, max_rf = -1e9;
int d = 0;
for (int p = l - 1; p >= 0; p --)
{
if (A[p] == x)
d ++;
min_lf = min(min_lf, pref[p] - d);
max_lf = max(max_lf, pref[p] + d);
}
d = 0;
for (int p = r; p <= N; p ++)
{
if (A[p] == x && p != r)
d ++;
min_rf = min(min_rf, pref[p] - d);
max_rf = max(max_rf, pref[p] + d);
}
max_rf += (j - i + 1);
min_rf -= (j - i + 1);
//cout << min_lf << " " << max_lf << " " << min_rf << " " << max_rf << endl;
if (max(min_rf, min_lf) <= min(max_rf, max_lf))
{
///cout << x << " " << i << " " << j << endl;
ans = max(ans, j - i + 1);
}
}
}
}
return ans;
}
Compilation message
sequence.cpp: In function 'int sequence(int, std::vector<int>)':
sequence.cpp:31:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
31 | for (int i = 0; i < occ[x].size(); i ++)
| ~~^~~~~~~~~~~~~~~
sequence.cpp:33:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
33 | for (int j = i; j < occ[x].size(); j ++)
| ~~^~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
11988 KB |
Output is correct |
2 |
Correct |
6 ms |
12060 KB |
Output is correct |
3 |
Correct |
6 ms |
11988 KB |
Output is correct |
4 |
Correct |
6 ms |
11988 KB |
Output is correct |
5 |
Correct |
6 ms |
11988 KB |
Output is correct |
6 |
Correct |
6 ms |
11988 KB |
Output is correct |
7 |
Correct |
7 ms |
11988 KB |
Output is correct |
8 |
Correct |
6 ms |
11988 KB |
Output is correct |
9 |
Correct |
6 ms |
11988 KB |
Output is correct |
10 |
Correct |
6 ms |
11988 KB |
Output is correct |
11 |
Correct |
6 ms |
11988 KB |
Output is correct |
12 |
Correct |
6 ms |
11988 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
11988 KB |
Output is correct |
2 |
Correct |
6 ms |
12060 KB |
Output is correct |
3 |
Correct |
6 ms |
11988 KB |
Output is correct |
4 |
Correct |
6 ms |
11988 KB |
Output is correct |
5 |
Correct |
6 ms |
11988 KB |
Output is correct |
6 |
Correct |
6 ms |
11988 KB |
Output is correct |
7 |
Correct |
7 ms |
11988 KB |
Output is correct |
8 |
Correct |
6 ms |
11988 KB |
Output is correct |
9 |
Correct |
6 ms |
11988 KB |
Output is correct |
10 |
Correct |
6 ms |
11988 KB |
Output is correct |
11 |
Correct |
6 ms |
11988 KB |
Output is correct |
12 |
Correct |
6 ms |
11988 KB |
Output is correct |
13 |
Correct |
22 ms |
12136 KB |
Output is correct |
14 |
Correct |
22 ms |
12136 KB |
Output is correct |
15 |
Correct |
96 ms |
12092 KB |
Output is correct |
16 |
Correct |
119 ms |
11988 KB |
Output is correct |
17 |
Correct |
647 ms |
12096 KB |
Output is correct |
18 |
Correct |
20 ms |
12116 KB |
Output is correct |
19 |
Correct |
78 ms |
12004 KB |
Output is correct |
20 |
Correct |
158 ms |
12116 KB |
Output is correct |
21 |
Correct |
110 ms |
12116 KB |
Output is correct |
22 |
Correct |
97 ms |
12116 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
11988 KB |
Output is correct |
2 |
Execution timed out |
2084 ms |
29724 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
12060 KB |
Output is correct |
2 |
Execution timed out |
2041 ms |
24880 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2065 ms |
35404 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
11988 KB |
Output is correct |
2 |
Correct |
6 ms |
12060 KB |
Output is correct |
3 |
Correct |
6 ms |
11988 KB |
Output is correct |
4 |
Correct |
6 ms |
11988 KB |
Output is correct |
5 |
Correct |
6 ms |
11988 KB |
Output is correct |
6 |
Correct |
6 ms |
11988 KB |
Output is correct |
7 |
Correct |
7 ms |
11988 KB |
Output is correct |
8 |
Correct |
6 ms |
11988 KB |
Output is correct |
9 |
Correct |
6 ms |
11988 KB |
Output is correct |
10 |
Correct |
6 ms |
11988 KB |
Output is correct |
11 |
Correct |
6 ms |
11988 KB |
Output is correct |
12 |
Correct |
6 ms |
11988 KB |
Output is correct |
13 |
Correct |
22 ms |
12136 KB |
Output is correct |
14 |
Correct |
22 ms |
12136 KB |
Output is correct |
15 |
Correct |
96 ms |
12092 KB |
Output is correct |
16 |
Correct |
119 ms |
11988 KB |
Output is correct |
17 |
Correct |
647 ms |
12096 KB |
Output is correct |
18 |
Correct |
20 ms |
12116 KB |
Output is correct |
19 |
Correct |
78 ms |
12004 KB |
Output is correct |
20 |
Correct |
158 ms |
12116 KB |
Output is correct |
21 |
Correct |
110 ms |
12116 KB |
Output is correct |
22 |
Correct |
97 ms |
12116 KB |
Output is correct |
23 |
Execution timed out |
2066 ms |
14872 KB |
Time limit exceeded |
24 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
11988 KB |
Output is correct |
2 |
Correct |
6 ms |
12060 KB |
Output is correct |
3 |
Correct |
6 ms |
11988 KB |
Output is correct |
4 |
Correct |
6 ms |
11988 KB |
Output is correct |
5 |
Correct |
6 ms |
11988 KB |
Output is correct |
6 |
Correct |
6 ms |
11988 KB |
Output is correct |
7 |
Correct |
7 ms |
11988 KB |
Output is correct |
8 |
Correct |
6 ms |
11988 KB |
Output is correct |
9 |
Correct |
6 ms |
11988 KB |
Output is correct |
10 |
Correct |
6 ms |
11988 KB |
Output is correct |
11 |
Correct |
6 ms |
11988 KB |
Output is correct |
12 |
Correct |
6 ms |
11988 KB |
Output is correct |
13 |
Correct |
22 ms |
12136 KB |
Output is correct |
14 |
Correct |
22 ms |
12136 KB |
Output is correct |
15 |
Correct |
96 ms |
12092 KB |
Output is correct |
16 |
Correct |
119 ms |
11988 KB |
Output is correct |
17 |
Correct |
647 ms |
12096 KB |
Output is correct |
18 |
Correct |
20 ms |
12116 KB |
Output is correct |
19 |
Correct |
78 ms |
12004 KB |
Output is correct |
20 |
Correct |
158 ms |
12116 KB |
Output is correct |
21 |
Correct |
110 ms |
12116 KB |
Output is correct |
22 |
Correct |
97 ms |
12116 KB |
Output is correct |
23 |
Execution timed out |
2084 ms |
29724 KB |
Time limit exceeded |
24 |
Halted |
0 ms |
0 KB |
- |