#include<bits/stdc++.h>
using namespace std;
#define int long long
#define ld long double
const int N = 2e5 + 5, mod = 1e9+7;
vector<pair<int, int> > vec;
multiset<int> st;
int minn = 1e9;
int last[N];
int n;
int pref[3][N], k;
int findd(int ind, int type){
int l = ind; int r = n; int anss = -1;
while(l <= r){
int mid = l + (r-l)/2;
if( pref[type][mid] - pref[type][ind - 1] >= k){
anss = mid;
r = mid - 1;
}else l = mid + 1;
}
return anss;
}
int32_t main(){
cin >> n >> k;
string s; cin >> s;
s = "*" + s;
for(int i = 1; i <= n; i++){
pref[0][i] = pref[0][i - 1] + (s[i] == 'J');
pref[1][i] = pref[1][i - 1] + (s[i] == 'O');
pref[2][i] = pref[2][i - 1] + (s[i] == 'I');
}
for(int i = 1; i <= n; i++){
if(s[i] != 'J') continue;
int mekJ = findd(i, 0);
if (mekJ == -1) break;
int mekO = findd(mekJ, 1);
if (mekO == -1) break;
int mekI = findd(mekO, 2);
if (mekI == -1) break;
int l = i;
int r = mekI;
minn = min(minn, r - l + 1 - 3 * k);
}
if(minn == 1e9) cout << -1 << endl;
else
cout << minn << endl;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
424 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
416 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
424 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
416 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
1 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
1 ms |
344 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
0 ms |
512 KB |
Output is correct |
28 |
Correct |
1 ms |
344 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
0 ms |
348 KB |
Output is correct |
32 |
Correct |
1 ms |
348 KB |
Output is correct |
33 |
Correct |
0 ms |
448 KB |
Output is correct |
34 |
Correct |
0 ms |
348 KB |
Output is correct |
35 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
424 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
416 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
1 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
1 ms |
344 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
0 ms |
512 KB |
Output is correct |
28 |
Correct |
1 ms |
344 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
0 ms |
348 KB |
Output is correct |
32 |
Correct |
1 ms |
348 KB |
Output is correct |
33 |
Correct |
0 ms |
448 KB |
Output is correct |
34 |
Correct |
0 ms |
348 KB |
Output is correct |
35 |
Correct |
0 ms |
348 KB |
Output is correct |
36 |
Correct |
10 ms |
5328 KB |
Output is correct |
37 |
Correct |
12 ms |
5672 KB |
Output is correct |
38 |
Correct |
11 ms |
5676 KB |
Output is correct |
39 |
Correct |
12 ms |
5508 KB |
Output is correct |
40 |
Correct |
8 ms |
5668 KB |
Output is correct |
41 |
Correct |
11 ms |
5416 KB |
Output is correct |
42 |
Correct |
14 ms |
5672 KB |
Output is correct |
43 |
Correct |
3 ms |
3440 KB |
Output is correct |
44 |
Correct |
4 ms |
4288 KB |
Output is correct |
45 |
Correct |
5 ms |
5436 KB |
Output is correct |
46 |
Correct |
8 ms |
5672 KB |
Output is correct |
47 |
Correct |
6 ms |
5580 KB |
Output is correct |
48 |
Correct |
5 ms |
5672 KB |
Output is correct |
49 |
Correct |
4 ms |
3944 KB |
Output is correct |
50 |
Correct |
8 ms |
5668 KB |
Output is correct |
51 |
Correct |
5 ms |
5672 KB |
Output is correct |
52 |
Correct |
5 ms |
5276 KB |
Output is correct |
53 |
Correct |
5 ms |
5672 KB |
Output is correct |
54 |
Correct |
10 ms |
5668 KB |
Output is correct |
55 |
Correct |
7 ms |
5416 KB |
Output is correct |
56 |
Correct |
6 ms |
5656 KB |
Output is correct |