#include <bits/stdc++.h>
#define FOR(i, x, y) for (int i = x; i < y; i++)
using namespace std;
int pref[4][200001], ptr[4];
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
int n, k;
string s;
cin >> n >> k >> s;
FOR(i, 0, n) {
FOR(j, 1, 4) pref[j][i + 1] = pref[j][i];
if (s[i] == 'J') pref[1][i + 1]++;
if (s[i] == 'O') pref[2][i + 1]++;
if (s[i] == 'I') pref[3][i + 1]++;
}
int ans = INT_MAX;
for (ptr[0] = 0; ptr[0] <= n; ptr[0]++) {
FOR(i, 1, 4) while (ptr[i] < ptr[i - 1] || (ptr[i] <= n && pref[i][ptr[i]] - pref[i][ptr[i - 1]] < k)) ptr[i]++;
bool possible = true;
FOR(i, 1, 4) if (ptr[i] > n || pref[i][ptr[i]] - pref[i][ptr[i - 1]] < k) possible = false;
if (possible) ans = min(ans, ptr[3] - ptr[0] - 3 * k);
}
if (ans == INT_MAX) cout << -1;
else cout << ans;
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
380 KB |
Output is correct |
| 2 |
Correct |
5 ms |
376 KB |
Output is correct |
| 3 |
Correct |
5 ms |
376 KB |
Output is correct |
| 4 |
Correct |
5 ms |
380 KB |
Output is correct |
| 5 |
Correct |
5 ms |
376 KB |
Output is correct |
| 6 |
Correct |
5 ms |
380 KB |
Output is correct |
| 7 |
Correct |
5 ms |
376 KB |
Output is correct |
| 8 |
Correct |
5 ms |
376 KB |
Output is correct |
| 9 |
Correct |
5 ms |
376 KB |
Output is correct |
| 10 |
Correct |
5 ms |
376 KB |
Output is correct |
| 11 |
Correct |
5 ms |
376 KB |
Output is correct |
| 12 |
Correct |
5 ms |
380 KB |
Output is correct |
| 13 |
Correct |
5 ms |
376 KB |
Output is correct |
| 14 |
Correct |
5 ms |
376 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
380 KB |
Output is correct |
| 2 |
Correct |
5 ms |
376 KB |
Output is correct |
| 3 |
Correct |
5 ms |
376 KB |
Output is correct |
| 4 |
Correct |
5 ms |
380 KB |
Output is correct |
| 5 |
Correct |
5 ms |
376 KB |
Output is correct |
| 6 |
Correct |
5 ms |
380 KB |
Output is correct |
| 7 |
Correct |
5 ms |
376 KB |
Output is correct |
| 8 |
Correct |
5 ms |
376 KB |
Output is correct |
| 9 |
Correct |
5 ms |
376 KB |
Output is correct |
| 10 |
Correct |
5 ms |
376 KB |
Output is correct |
| 11 |
Correct |
5 ms |
376 KB |
Output is correct |
| 12 |
Correct |
5 ms |
380 KB |
Output is correct |
| 13 |
Correct |
5 ms |
376 KB |
Output is correct |
| 14 |
Correct |
5 ms |
376 KB |
Output is correct |
| 15 |
Correct |
5 ms |
376 KB |
Output is correct |
| 16 |
Correct |
5 ms |
376 KB |
Output is correct |
| 17 |
Correct |
5 ms |
376 KB |
Output is correct |
| 18 |
Correct |
5 ms |
376 KB |
Output is correct |
| 19 |
Correct |
5 ms |
376 KB |
Output is correct |
| 20 |
Correct |
5 ms |
376 KB |
Output is correct |
| 21 |
Correct |
5 ms |
376 KB |
Output is correct |
| 22 |
Correct |
5 ms |
376 KB |
Output is correct |
| 23 |
Correct |
5 ms |
376 KB |
Output is correct |
| 24 |
Correct |
5 ms |
376 KB |
Output is correct |
| 25 |
Correct |
5 ms |
376 KB |
Output is correct |
| 26 |
Correct |
5 ms |
376 KB |
Output is correct |
| 27 |
Correct |
5 ms |
376 KB |
Output is correct |
| 28 |
Correct |
5 ms |
376 KB |
Output is correct |
| 29 |
Correct |
5 ms |
376 KB |
Output is correct |
| 30 |
Correct |
5 ms |
376 KB |
Output is correct |
| 31 |
Correct |
5 ms |
376 KB |
Output is correct |
| 32 |
Correct |
5 ms |
380 KB |
Output is correct |
| 33 |
Correct |
6 ms |
376 KB |
Output is correct |
| 34 |
Correct |
6 ms |
376 KB |
Output is correct |
| 35 |
Correct |
5 ms |
376 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
380 KB |
Output is correct |
| 2 |
Correct |
5 ms |
376 KB |
Output is correct |
| 3 |
Correct |
5 ms |
376 KB |
Output is correct |
| 4 |
Correct |
5 ms |
380 KB |
Output is correct |
| 5 |
Correct |
5 ms |
376 KB |
Output is correct |
| 6 |
Correct |
5 ms |
380 KB |
Output is correct |
| 7 |
Correct |
5 ms |
376 KB |
Output is correct |
| 8 |
Correct |
5 ms |
376 KB |
Output is correct |
| 9 |
Correct |
5 ms |
376 KB |
Output is correct |
| 10 |
Correct |
5 ms |
376 KB |
Output is correct |
| 11 |
Correct |
5 ms |
376 KB |
Output is correct |
| 12 |
Correct |
5 ms |
380 KB |
Output is correct |
| 13 |
Correct |
5 ms |
376 KB |
Output is correct |
| 14 |
Correct |
5 ms |
376 KB |
Output is correct |
| 15 |
Correct |
5 ms |
376 KB |
Output is correct |
| 16 |
Correct |
5 ms |
376 KB |
Output is correct |
| 17 |
Correct |
5 ms |
376 KB |
Output is correct |
| 18 |
Correct |
5 ms |
376 KB |
Output is correct |
| 19 |
Correct |
5 ms |
376 KB |
Output is correct |
| 20 |
Correct |
5 ms |
376 KB |
Output is correct |
| 21 |
Correct |
5 ms |
376 KB |
Output is correct |
| 22 |
Correct |
5 ms |
376 KB |
Output is correct |
| 23 |
Correct |
5 ms |
376 KB |
Output is correct |
| 24 |
Correct |
5 ms |
376 KB |
Output is correct |
| 25 |
Correct |
5 ms |
376 KB |
Output is correct |
| 26 |
Correct |
5 ms |
376 KB |
Output is correct |
| 27 |
Correct |
5 ms |
376 KB |
Output is correct |
| 28 |
Correct |
5 ms |
376 KB |
Output is correct |
| 29 |
Correct |
5 ms |
376 KB |
Output is correct |
| 30 |
Correct |
5 ms |
376 KB |
Output is correct |
| 31 |
Correct |
5 ms |
376 KB |
Output is correct |
| 32 |
Correct |
5 ms |
380 KB |
Output is correct |
| 33 |
Correct |
6 ms |
376 KB |
Output is correct |
| 34 |
Correct |
6 ms |
376 KB |
Output is correct |
| 35 |
Correct |
5 ms |
376 KB |
Output is correct |
| 36 |
Correct |
16 ms |
2820 KB |
Output is correct |
| 37 |
Correct |
14 ms |
2948 KB |
Output is correct |
| 38 |
Correct |
14 ms |
2948 KB |
Output is correct |
| 39 |
Correct |
14 ms |
2948 KB |
Output is correct |
| 40 |
Correct |
12 ms |
2948 KB |
Output is correct |
| 41 |
Correct |
13 ms |
3076 KB |
Output is correct |
| 42 |
Correct |
17 ms |
3076 KB |
Output is correct |
| 43 |
Correct |
10 ms |
2040 KB |
Output is correct |
| 44 |
Correct |
11 ms |
2436 KB |
Output is correct |
| 45 |
Correct |
12 ms |
2944 KB |
Output is correct |
| 46 |
Correct |
14 ms |
2948 KB |
Output is correct |
| 47 |
Correct |
12 ms |
2948 KB |
Output is correct |
| 48 |
Correct |
13 ms |
2948 KB |
Output is correct |
| 49 |
Correct |
10 ms |
2180 KB |
Output is correct |
| 50 |
Correct |
12 ms |
2948 KB |
Output is correct |
| 51 |
Correct |
12 ms |
2948 KB |
Output is correct |
| 52 |
Correct |
11 ms |
2948 KB |
Output is correct |
| 53 |
Correct |
11 ms |
2948 KB |
Output is correct |
| 54 |
Correct |
10 ms |
3080 KB |
Output is correct |
| 55 |
Correct |
10 ms |
2948 KB |
Output is correct |
| 56 |
Correct |
9 ms |
2948 KB |
Output is correct |
