#include <iostream>
#include <string>
#include <vector>
using namespace std;
int n;
int find(int target, int low, vector<int> &arr) {
int high = n;
int val = -1;
int mid;
while (low <= high) {
mid = (low + high) / 2;
if (arr[mid] >= target) {
val = mid;
high = mid - 1;
}
else if (arr[mid] < target) {
low = mid + 1;
}
}
return val;
}
int main() {
string s;
int k;
cin >> n;
cin >> k;
cin >> s;
vector<int> prefixj ;
vector<int> prefixo;
vector<int> prefixi;
prefixj.push_back(0);
prefixi.push_back(0);
prefixo.push_back(0);
int jCount = 0;
int oCount = 0;
int iCount = 0;
for (auto p: s) {
if (p == 'J') {
jCount++;
}
else if (p == 'O') {
oCount++;
}
else if (p == 'I') {
iCount++;
}
prefixj.push_back(jCount);
prefixo.push_back(oCount);
prefixi.push_back(iCount);
}
int answer = 200001;
for (int i = 1; i <=n; i++) {
int position_of_j = find(prefixj[i-1] + k, i, prefixj);
if (position_of_j == -1) {
break;
}
int position_of_o = find(prefixo[position_of_j] + k, position_of_j, prefixo);
if (position_of_o == -1) {
break;
}
int position_of_i = find(prefixi[position_of_o] + k, position_of_o, prefixi);
if (position_of_i == -1) {
break;
}
answer = min(answer, position_of_i - i - 3 * k + 1);
}
if (answer == 200001) {
answer = -1;
}
cout << answer;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
600 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
352 KB |
Output is correct |
| 4 |
Correct |
1 ms |
340 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
504 KB |
Output is correct |
| 8 |
Correct |
1 ms |
440 KB |
Output is correct |
| 9 |
Correct |
1 ms |
504 KB |
Output is correct |
| 10 |
Correct |
1 ms |
340 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
600 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
352 KB |
Output is correct |
| 4 |
Correct |
1 ms |
340 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
504 KB |
Output is correct |
| 8 |
Correct |
1 ms |
440 KB |
Output is correct |
| 9 |
Correct |
1 ms |
504 KB |
Output is correct |
| 10 |
Correct |
1 ms |
340 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Correct |
1 ms |
340 KB |
Output is correct |
| 16 |
Correct |
1 ms |
504 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
1 ms |
436 KB |
Output is correct |
| 19 |
Correct |
1 ms |
340 KB |
Output is correct |
| 20 |
Correct |
1 ms |
340 KB |
Output is correct |
| 21 |
Correct |
1 ms |
340 KB |
Output is correct |
| 22 |
Correct |
1 ms |
340 KB |
Output is correct |
| 23 |
Correct |
1 ms |
596 KB |
Output is correct |
| 24 |
Correct |
1 ms |
340 KB |
Output is correct |
| 25 |
Correct |
1 ms |
340 KB |
Output is correct |
| 26 |
Correct |
1 ms |
340 KB |
Output is correct |
| 27 |
Correct |
1 ms |
340 KB |
Output is correct |
| 28 |
Correct |
1 ms |
596 KB |
Output is correct |
| 29 |
Correct |
1 ms |
340 KB |
Output is correct |
| 30 |
Correct |
1 ms |
440 KB |
Output is correct |
| 31 |
Correct |
1 ms |
504 KB |
Output is correct |
| 32 |
Correct |
1 ms |
596 KB |
Output is correct |
| 33 |
Correct |
1 ms |
340 KB |
Output is correct |
| 34 |
Correct |
1 ms |
340 KB |
Output is correct |
| 35 |
Correct |
1 ms |
340 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
600 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
352 KB |
Output is correct |
| 4 |
Correct |
1 ms |
340 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
504 KB |
Output is correct |
| 8 |
Correct |
1 ms |
440 KB |
Output is correct |
| 9 |
Correct |
1 ms |
504 KB |
Output is correct |
| 10 |
Correct |
1 ms |
340 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Correct |
1 ms |
340 KB |
Output is correct |
| 16 |
Correct |
1 ms |
504 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
1 ms |
436 KB |
Output is correct |
| 19 |
Correct |
1 ms |
340 KB |
Output is correct |
| 20 |
Correct |
1 ms |
340 KB |
Output is correct |
| 21 |
Correct |
1 ms |
340 KB |
Output is correct |
| 22 |
Correct |
1 ms |
340 KB |
Output is correct |
| 23 |
Correct |
1 ms |
596 KB |
Output is correct |
| 24 |
Correct |
1 ms |
340 KB |
Output is correct |
| 25 |
Correct |
1 ms |
340 KB |
Output is correct |
| 26 |
Correct |
1 ms |
340 KB |
Output is correct |
| 27 |
Correct |
1 ms |
340 KB |
Output is correct |
| 28 |
Correct |
1 ms |
596 KB |
Output is correct |
| 29 |
Correct |
1 ms |
340 KB |
Output is correct |
| 30 |
Correct |
1 ms |
440 KB |
Output is correct |
| 31 |
Correct |
1 ms |
504 KB |
Output is correct |
| 32 |
Correct |
1 ms |
596 KB |
Output is correct |
| 33 |
Correct |
1 ms |
340 KB |
Output is correct |
| 34 |
Correct |
1 ms |
340 KB |
Output is correct |
| 35 |
Correct |
1 ms |
340 KB |
Output is correct |
| 36 |
Correct |
21 ms |
3028 KB |
Output is correct |
| 37 |
Correct |
24 ms |
3428 KB |
Output is correct |
| 38 |
Correct |
23 ms |
3264 KB |
Output is correct |
| 39 |
Correct |
21 ms |
3264 KB |
Output is correct |
| 40 |
Correct |
11 ms |
3420 KB |
Output is correct |
| 41 |
Correct |
19 ms |
3264 KB |
Output is correct |
| 42 |
Correct |
24 ms |
3264 KB |
Output is correct |
| 43 |
Correct |
5 ms |
2252 KB |
Output is correct |
| 44 |
Correct |
7 ms |
3020 KB |
Output is correct |
| 45 |
Correct |
8 ms |
3264 KB |
Output is correct |
| 46 |
Correct |
8 ms |
3428 KB |
Output is correct |
| 47 |
Correct |
8 ms |
3264 KB |
Output is correct |
| 48 |
Correct |
8 ms |
3372 KB |
Output is correct |
| 49 |
Correct |
6 ms |
3020 KB |
Output is correct |
| 50 |
Correct |
8 ms |
3264 KB |
Output is correct |
| 51 |
Correct |
8 ms |
3376 KB |
Output is correct |
| 52 |
Correct |
7 ms |
3264 KB |
Output is correct |
| 53 |
Correct |
8 ms |
3272 KB |
Output is correct |
| 54 |
Correct |
11 ms |
3376 KB |
Output is correct |
| 55 |
Correct |
9 ms |
3428 KB |
Output is correct |
| 56 |
Correct |
7 ms |
3264 KB |
Output is correct |
