#include<bits/stdc++.h>
#define int long long
#define nl endl
using namespace std;
signed main(){
ios_base::sync_with_stdio(0);
cin.tie(NULL);cout.tie(NULL);
int n, k;
cin>>n>>k;
string s; cin>>s;
vector<int> Jcnt(n), Ocnt(n), Icnt(n);
Jcnt[0] = (s[0] == 'J'), Ocnt[0] = (s[0] == 'O'), Icnt[0] = (s[0] == 'I');
for(int i=1; i<n; i++){
Jcnt[i] = Jcnt[i-1] + (s[i] == 'J');
Ocnt[i] = Ocnt[i-1] + (s[i] == 'O');
Icnt[i] = Icnt[i-1] + (s[i] == 'I');
}
int ans = 1e18;
for(int i=0; i<n; i++){
int Jstart = lower_bound(Jcnt.begin(), Jcnt.end(), i+1) - Jcnt.begin();
int Jend = lower_bound(Jcnt.begin(), Jcnt.end(), i + k) - Jcnt.begin();
if(Jend >= n) continue;
int Oend = lower_bound(Ocnt.begin(), Ocnt.end(), Ocnt[Jend] + k) - Ocnt.begin();
if(Oend >= n) continue;
int Iend = lower_bound(Icnt.begin(), Icnt.end(), Icnt[Oend] + k) - Icnt.begin();
if(Iend >= n) continue;
//if(Jend >= n or Oend >= n or Iend >= n) continue;
ans = min(ans, (Iend - Jstart + 1) - (3*k));
}
if(ans == 1e18) cout<<-1;
else cout<<ans;
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
344 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
1 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
1 ms |
344 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
1 ms |
600 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
344 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
1 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
1 ms |
344 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
1 ms |
600 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
1 ms |
348 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
1 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
1 ms |
348 KB |
Output is correct |
21 |
Correct |
1 ms |
456 KB |
Output is correct |
22 |
Correct |
1 ms |
348 KB |
Output is correct |
23 |
Correct |
1 ms |
496 KB |
Output is correct |
24 |
Correct |
1 ms |
348 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
344 KB |
Output is correct |
27 |
Correct |
1 ms |
344 KB |
Output is correct |
28 |
Correct |
1 ms |
348 KB |
Output is correct |
29 |
Correct |
1 ms |
348 KB |
Output is correct |
30 |
Correct |
1 ms |
348 KB |
Output is correct |
31 |
Correct |
1 ms |
348 KB |
Output is correct |
32 |
Correct |
1 ms |
348 KB |
Output is correct |
33 |
Correct |
1 ms |
348 KB |
Output is correct |
34 |
Correct |
1 ms |
452 KB |
Output is correct |
35 |
Correct |
1 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
344 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
1 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
1 ms |
344 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
1 ms |
600 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
1 ms |
348 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
1 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
1 ms |
348 KB |
Output is correct |
21 |
Correct |
1 ms |
456 KB |
Output is correct |
22 |
Correct |
1 ms |
348 KB |
Output is correct |
23 |
Correct |
1 ms |
496 KB |
Output is correct |
24 |
Correct |
1 ms |
348 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
344 KB |
Output is correct |
27 |
Correct |
1 ms |
344 KB |
Output is correct |
28 |
Correct |
1 ms |
348 KB |
Output is correct |
29 |
Correct |
1 ms |
348 KB |
Output is correct |
30 |
Correct |
1 ms |
348 KB |
Output is correct |
31 |
Correct |
1 ms |
348 KB |
Output is correct |
32 |
Correct |
1 ms |
348 KB |
Output is correct |
33 |
Correct |
1 ms |
348 KB |
Output is correct |
34 |
Correct |
1 ms |
452 KB |
Output is correct |
35 |
Correct |
1 ms |
348 KB |
Output is correct |
36 |
Correct |
20 ms |
5096 KB |
Output is correct |
37 |
Correct |
20 ms |
5604 KB |
Output is correct |
38 |
Correct |
26 ms |
5672 KB |
Output is correct |
39 |
Correct |
24 ms |
5864 KB |
Output is correct |
40 |
Correct |
19 ms |
5608 KB |
Output is correct |
41 |
Correct |
23 ms |
5688 KB |
Output is correct |
42 |
Correct |
25 ms |
5604 KB |
Output is correct |
43 |
Correct |
11 ms |
3676 KB |
Output is correct |
44 |
Correct |
16 ms |
4324 KB |
Output is correct |
45 |
Correct |
18 ms |
5608 KB |
Output is correct |
46 |
Correct |
19 ms |
5608 KB |
Output is correct |
47 |
Correct |
18 ms |
5860 KB |
Output is correct |
48 |
Correct |
19 ms |
5608 KB |
Output is correct |
49 |
Correct |
15 ms |
3816 KB |
Output is correct |
50 |
Correct |
20 ms |
5608 KB |
Output is correct |
51 |
Correct |
19 ms |
5680 KB |
Output is correct |
52 |
Correct |
14 ms |
5352 KB |
Output is correct |
53 |
Correct |
18 ms |
5608 KB |
Output is correct |
54 |
Correct |
17 ms |
5540 KB |
Output is correct |
55 |
Correct |
15 ms |
5608 KB |
Output is correct |
56 |
Correct |
13 ms |
5608 KB |
Output is correct |