#include <iostream>
#include <cstring>
#include <map>
using namespace std;
#define ll long long
int n;
ll ways = 0;
int arr[200005];
int total[200005];
int highest = 0;
int main(){
cin >> n;
for(int i = 0; i < n; i++) cin >> arr[i];
for(int l = 0; l < n; l++){
memset(total, 0, sizeof(total));
total[0] = n;
highest = 0;
map<int, int> m;
for(int r = l; r < n; r++){
total[m[arr[r]]]--;
m[arr[r]]++;
total[m[arr[r]]]++;
if(highest < m[arr[r]]){
highest = m[arr[r]];
if(highest + highest > r - l + 1) ways++;
}
else if(total[highest] == 0){
highest--;
}
else if(total[highest] == 1){
if(highest + highest > r - l + 1) ways++;
}
}
}
cout << ways;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
988 KB |
Output is correct |
2 |
Correct |
2 ms |
964 KB |
Output is correct |
3 |
Correct |
7 ms |
976 KB |
Output is correct |
4 |
Correct |
9 ms |
1068 KB |
Output is correct |
5 |
Correct |
7 ms |
1076 KB |
Output is correct |
6 |
Correct |
7 ms |
972 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
988 KB |
Output is correct |
2 |
Correct |
2 ms |
964 KB |
Output is correct |
3 |
Correct |
7 ms |
976 KB |
Output is correct |
4 |
Correct |
9 ms |
1068 KB |
Output is correct |
5 |
Correct |
7 ms |
1076 KB |
Output is correct |
6 |
Correct |
7 ms |
972 KB |
Output is correct |
7 |
Correct |
116 ms |
1100 KB |
Output is correct |
8 |
Correct |
4 ms |
972 KB |
Output is correct |
9 |
Correct |
113 ms |
1068 KB |
Output is correct |
10 |
Correct |
110 ms |
972 KB |
Output is correct |
11 |
Correct |
118 ms |
1076 KB |
Output is correct |
12 |
Correct |
119 ms |
1076 KB |
Output is correct |
13 |
Correct |
113 ms |
1068 KB |
Output is correct |
14 |
Correct |
113 ms |
1064 KB |
Output is correct |
15 |
Correct |
117 ms |
972 KB |
Output is correct |
16 |
Correct |
109 ms |
1072 KB |
Output is correct |
17 |
Correct |
59 ms |
972 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
3066 ms |
1484 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
988 KB |
Output is correct |
2 |
Correct |
2 ms |
964 KB |
Output is correct |
3 |
Correct |
7 ms |
976 KB |
Output is correct |
4 |
Correct |
9 ms |
1068 KB |
Output is correct |
5 |
Correct |
7 ms |
1076 KB |
Output is correct |
6 |
Correct |
7 ms |
972 KB |
Output is correct |
7 |
Correct |
116 ms |
1100 KB |
Output is correct |
8 |
Correct |
4 ms |
972 KB |
Output is correct |
9 |
Correct |
113 ms |
1068 KB |
Output is correct |
10 |
Correct |
110 ms |
972 KB |
Output is correct |
11 |
Correct |
118 ms |
1076 KB |
Output is correct |
12 |
Correct |
119 ms |
1076 KB |
Output is correct |
13 |
Correct |
113 ms |
1068 KB |
Output is correct |
14 |
Correct |
113 ms |
1064 KB |
Output is correct |
15 |
Correct |
117 ms |
972 KB |
Output is correct |
16 |
Correct |
109 ms |
1072 KB |
Output is correct |
17 |
Correct |
59 ms |
972 KB |
Output is correct |
18 |
Execution timed out |
3066 ms |
1484 KB |
Time limit exceeded |
19 |
Halted |
0 ms |
0 KB |
- |