#include "bits/stdc++.h"
using namespace std;
#define ar array
const int N = 2e5 + 5;
int dp[3][N];
signed main(){
ios::sync_with_stdio(0); cin.tie(0);
int n, k; cin>>n>>k;
string s; cin>>s;
vector<int> a(n);
for(int i=0;i<n;i++){
if(s[i] == 'J') a[i] = 0;
if(s[i] == 'O') a[i] = 1;
if(s[i] == 'I') a[i] = 2;
}
memset(dp, -1, sizeof dp);
for(int j=0;j<3;j++){
vector<int> p;
for(int i=0;i<n;i++){
if(a[i] == j) p.push_back(i);
} p.push_back(n);
for(int l=k-1;l+1<(int)p.size();l++){
for(int i=p[l];i<p[l+1];i++) dp[j][i] = p[l-k+1];
}
}
int res = 1e9;
for(int i=0;i<n;i++){
int l = i;
for(int j=2;~j && l >= 0;j--){
l = dp[j][l];
if(j) l--;
}
if(l >= 0){
res = min(res, i - l + 1);
}
}
if(res == 1e9) cout<<-1<<"\n";
else cout<<res - 3 * k<<"\n";
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2636 KB |
Output is correct |
2 |
Correct |
1 ms |
2636 KB |
Output is correct |
3 |
Correct |
1 ms |
2624 KB |
Output is correct |
4 |
Correct |
1 ms |
2620 KB |
Output is correct |
5 |
Correct |
2 ms |
2624 KB |
Output is correct |
6 |
Correct |
1 ms |
2628 KB |
Output is correct |
7 |
Correct |
1 ms |
2628 KB |
Output is correct |
8 |
Correct |
1 ms |
2636 KB |
Output is correct |
9 |
Correct |
1 ms |
2636 KB |
Output is correct |
10 |
Correct |
1 ms |
2636 KB |
Output is correct |
11 |
Correct |
1 ms |
2636 KB |
Output is correct |
12 |
Correct |
1 ms |
2636 KB |
Output is correct |
13 |
Correct |
1 ms |
2636 KB |
Output is correct |
14 |
Correct |
1 ms |
2636 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2636 KB |
Output is correct |
2 |
Correct |
1 ms |
2636 KB |
Output is correct |
3 |
Correct |
1 ms |
2624 KB |
Output is correct |
4 |
Correct |
1 ms |
2620 KB |
Output is correct |
5 |
Correct |
2 ms |
2624 KB |
Output is correct |
6 |
Correct |
1 ms |
2628 KB |
Output is correct |
7 |
Correct |
1 ms |
2628 KB |
Output is correct |
8 |
Correct |
1 ms |
2636 KB |
Output is correct |
9 |
Correct |
1 ms |
2636 KB |
Output is correct |
10 |
Correct |
1 ms |
2636 KB |
Output is correct |
11 |
Correct |
1 ms |
2636 KB |
Output is correct |
12 |
Correct |
1 ms |
2636 KB |
Output is correct |
13 |
Correct |
1 ms |
2636 KB |
Output is correct |
14 |
Correct |
1 ms |
2636 KB |
Output is correct |
15 |
Correct |
1 ms |
2632 KB |
Output is correct |
16 |
Correct |
2 ms |
2636 KB |
Output is correct |
17 |
Correct |
2 ms |
2604 KB |
Output is correct |
18 |
Correct |
2 ms |
2636 KB |
Output is correct |
19 |
Correct |
1 ms |
2620 KB |
Output is correct |
20 |
Correct |
2 ms |
2636 KB |
Output is correct |
21 |
Correct |
2 ms |
2636 KB |
Output is correct |
22 |
Correct |
2 ms |
2624 KB |
Output is correct |
23 |
Correct |
1 ms |
2620 KB |
Output is correct |
24 |
Correct |
2 ms |
2624 KB |
Output is correct |
25 |
Correct |
2 ms |
2636 KB |
Output is correct |
26 |
Correct |
1 ms |
2636 KB |
Output is correct |
27 |
Correct |
1 ms |
2636 KB |
Output is correct |
28 |
Correct |
2 ms |
2636 KB |
Output is correct |
29 |
Correct |
2 ms |
2624 KB |
Output is correct |
30 |
Correct |
1 ms |
2636 KB |
Output is correct |
31 |
Correct |
2 ms |
2636 KB |
Output is correct |
32 |
Correct |
2 ms |
2636 KB |
Output is correct |
33 |
Correct |
1 ms |
2636 KB |
Output is correct |
34 |
Correct |
1 ms |
2636 KB |
Output is correct |
35 |
Correct |
1 ms |
2636 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2636 KB |
Output is correct |
2 |
Correct |
1 ms |
2636 KB |
Output is correct |
3 |
Correct |
1 ms |
2624 KB |
Output is correct |
4 |
Correct |
1 ms |
2620 KB |
Output is correct |
5 |
Correct |
2 ms |
2624 KB |
Output is correct |
6 |
Correct |
1 ms |
2628 KB |
Output is correct |
7 |
Correct |
1 ms |
2628 KB |
Output is correct |
8 |
Correct |
1 ms |
2636 KB |
Output is correct |
9 |
Correct |
1 ms |
2636 KB |
Output is correct |
10 |
Correct |
1 ms |
2636 KB |
Output is correct |
11 |
Correct |
1 ms |
2636 KB |
Output is correct |
12 |
Correct |
1 ms |
2636 KB |
Output is correct |
13 |
Correct |
1 ms |
2636 KB |
Output is correct |
14 |
Correct |
1 ms |
2636 KB |
Output is correct |
15 |
Correct |
1 ms |
2632 KB |
Output is correct |
16 |
Correct |
2 ms |
2636 KB |
Output is correct |
17 |
Correct |
2 ms |
2604 KB |
Output is correct |
18 |
Correct |
2 ms |
2636 KB |
Output is correct |
19 |
Correct |
1 ms |
2620 KB |
Output is correct |
20 |
Correct |
2 ms |
2636 KB |
Output is correct |
21 |
Correct |
2 ms |
2636 KB |
Output is correct |
22 |
Correct |
2 ms |
2624 KB |
Output is correct |
23 |
Correct |
1 ms |
2620 KB |
Output is correct |
24 |
Correct |
2 ms |
2624 KB |
Output is correct |
25 |
Correct |
2 ms |
2636 KB |
Output is correct |
26 |
Correct |
1 ms |
2636 KB |
Output is correct |
27 |
Correct |
1 ms |
2636 KB |
Output is correct |
28 |
Correct |
2 ms |
2636 KB |
Output is correct |
29 |
Correct |
2 ms |
2624 KB |
Output is correct |
30 |
Correct |
1 ms |
2636 KB |
Output is correct |
31 |
Correct |
2 ms |
2636 KB |
Output is correct |
32 |
Correct |
2 ms |
2636 KB |
Output is correct |
33 |
Correct |
1 ms |
2636 KB |
Output is correct |
34 |
Correct |
1 ms |
2636 KB |
Output is correct |
35 |
Correct |
1 ms |
2636 KB |
Output is correct |
36 |
Correct |
10 ms |
4196 KB |
Output is correct |
37 |
Correct |
14 ms |
4692 KB |
Output is correct |
38 |
Correct |
11 ms |
4552 KB |
Output is correct |
39 |
Correct |
10 ms |
4560 KB |
Output is correct |
40 |
Correct |
11 ms |
4576 KB |
Output is correct |
41 |
Correct |
11 ms |
4552 KB |
Output is correct |
42 |
Correct |
12 ms |
4604 KB |
Output is correct |
43 |
Correct |
7 ms |
3840 KB |
Output is correct |
44 |
Correct |
8 ms |
4028 KB |
Output is correct |
45 |
Correct |
10 ms |
4548 KB |
Output is correct |
46 |
Correct |
10 ms |
4520 KB |
Output is correct |
47 |
Correct |
10 ms |
4548 KB |
Output is correct |
48 |
Correct |
10 ms |
4552 KB |
Output is correct |
49 |
Correct |
9 ms |
3876 KB |
Output is correct |
50 |
Correct |
10 ms |
4548 KB |
Output is correct |
51 |
Correct |
10 ms |
4548 KB |
Output is correct |
52 |
Correct |
8 ms |
4312 KB |
Output is correct |
53 |
Correct |
9 ms |
4564 KB |
Output is correct |
54 |
Correct |
6 ms |
4540 KB |
Output is correct |
55 |
Correct |
5 ms |
4540 KB |
Output is correct |
56 |
Correct |
5 ms |
4552 KB |
Output is correct |