#include <bits/stdc++.h>
using namespace std;
#define fast ios::sync_with_stdio(0);cin.tie(0);
#define s second
#define f first
typedef long long ll;
const ll MOD = 998244353;
const ll LOGN = 21;
const ll MAXN = 2e5 + 100;
string s;
int toJ[MAXN], toO[MAXN], toI[MAXN];
int main() {
fast
int N, K;
cin >> N >> K >> s;
s = "#" + s;
int r = 1;
int cnt = (s[1] == 'J');
for (int l = 1; l <= N; l++) {
while (cnt < K && r < N) {
r++;
if (s[r] == 'J')
cnt++;
}
if (cnt == K)
toJ[l] = r + 1;
else
toJ[l] = -1;
if (s[l] == 'J')
cnt--;
}
r = 1;
cnt = (s[1] == 'O');
for (int l = 1; l <= N; l++) {
while (cnt < K && r < N) {
r++;
if (s[r] == 'O')
cnt++;
}
if (cnt == K)
toO[l] = r + 1;
else
toO[l] = -1;
if (s[l] == 'O')
cnt--;
}
r = 1;
cnt = (s[1] == 'I');
for (int l = 1; l <= N; l++) {
while (cnt < K && r < N) {
r++;
if (s[r] == 'I')
cnt++;
}
if (cnt == K)
toI[l] = r + 1;
else
toI[l] = -1;
if (s[l] == 'I')
cnt--;
}
int ans = 1e9;
for (int i = 1; i <= N; i++) {
int now = toJ[i];
if (now == -1 || now > N)
continue;
now = toO[now];
if (now == -1 || now > N)
continue;
now = toI[now];
if (now == -1)
continue;
ans = min(ans, now - i);
}
if (ans == 1e9)
cout << "-1\n";
else
cout << ans - 3*K << "\n";
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2508 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
0 ms |
2512 KB |
Output is correct |
| 6 |
Correct |
0 ms |
2392 KB |
Output is correct |
| 7 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2504 KB |
Output is correct |
| 11 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2396 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2508 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
0 ms |
2512 KB |
Output is correct |
| 6 |
Correct |
0 ms |
2392 KB |
Output is correct |
| 7 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2504 KB |
Output is correct |
| 11 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 15 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 16 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 18 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 20 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 21 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 22 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 23 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 24 |
Correct |
1 ms |
2424 KB |
Output is correct |
| 25 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 26 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 27 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 28 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 29 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 30 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 31 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 32 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 33 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 34 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 35 |
Correct |
0 ms |
2396 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2508 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
0 ms |
2512 KB |
Output is correct |
| 6 |
Correct |
0 ms |
2392 KB |
Output is correct |
| 7 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2504 KB |
Output is correct |
| 11 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 15 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 16 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 18 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 20 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 21 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 22 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 23 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 24 |
Correct |
1 ms |
2424 KB |
Output is correct |
| 25 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 26 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 27 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 28 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 29 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 30 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 31 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 32 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 33 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 34 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 35 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 36 |
Correct |
4 ms |
3120 KB |
Output is correct |
| 37 |
Correct |
6 ms |
3164 KB |
Output is correct |
| 38 |
Correct |
4 ms |
3108 KB |
Output is correct |
| 39 |
Correct |
5 ms |
3152 KB |
Output is correct |
| 40 |
Correct |
5 ms |
3320 KB |
Output is correct |
| 41 |
Correct |
5 ms |
3108 KB |
Output is correct |
| 42 |
Correct |
6 ms |
3132 KB |
Output is correct |
| 43 |
Correct |
4 ms |
3160 KB |
Output is correct |
| 44 |
Correct |
4 ms |
3024 KB |
Output is correct |
| 45 |
Correct |
5 ms |
3096 KB |
Output is correct |
| 46 |
Correct |
5 ms |
3108 KB |
Output is correct |
| 47 |
Correct |
5 ms |
3108 KB |
Output is correct |
| 48 |
Correct |
4 ms |
3108 KB |
Output is correct |
| 49 |
Correct |
3 ms |
2916 KB |
Output is correct |
| 50 |
Correct |
5 ms |
3236 KB |
Output is correct |
| 51 |
Correct |
5 ms |
3108 KB |
Output is correct |
| 52 |
Correct |
2 ms |
3244 KB |
Output is correct |
| 53 |
Correct |
3 ms |
3108 KB |
Output is correct |
| 54 |
Correct |
3 ms |
3620 KB |
Output is correct |
| 55 |
Correct |
2 ms |
3108 KB |
Output is correct |
| 56 |
Correct |
3 ms |
3108 KB |
Output is correct |
