#include <bits/stdc++.h>
#define int long long
#pragma GCC optimize("Ofast")
#define max(a, b) (a > b ? a : b)
#define min(a, b) (a < b ? a : b)
#define cmax(a, b) a = max(a, b)
#define cmin(a, b) a = min(a, b)
#define MEM(x, n) memset(x, n, sizeof(x))
#define pii pair<int, int>
#define pdd pair<double, double>
#define DB(x) cerr << #x << " " << x << endl;
#define endl "\n"
#define Koying ios::sync_with_stdio(0), cin.tie(0)
#define lowbit(x) x &(-x)
const int INF = 0x3f3f3f3f3f3f3f3f;
using namespace std;
#define MAXN 200005
int n, k;
string s;
void sol() {
cin >> n >> k;
cin >> s;
int mn = INF;
//DB(s);
int a, b, c, d;
a = b = c = d = -1;
int cntJ, cntO, cntI;
cntJ = cntO = cntI = 0;
for (int i = 0; i < n; i++) {
while (d + 1 <= i) {
d++;
cntI += s[d] == 'I';
}
while (c + 1 < d && cntI - (s[c + 1] == 'I') >= k) {
c++;
cntO += s[c] == 'O';
cntI -= s[c] == 'I';
}
while (b + 1 < c && cntO - (s[b + 1] == 'O') >= k) {
b++;
cntJ += s[b] == 'J';
cntO -= s[b] == 'O';
}
while (a + 1 < b && cntJ - (s[a + 1] == 'J') >= k) {
a++;
cntJ -= s[a] == 'J';
}
if (cntJ >= k && cntO >= k && cntI >= k)
cmin(mn, d - a);
//cout << a << " " << b << " " << c << " " << d << endl;
//cout << cntJ << " " << cntO << " " << cntI << endl;
}
if (mn == INF) {
cout << -1 << endl;
return;
}
cout << mn - 3 * k << endl;
}
signed main()
{
Koying;
int t = 1;
//cin >> t;
sol();
return 0;
}
Compilation message
ho_t2.cpp: In function 'int main()':
ho_t2.cpp:66:9: warning: unused variable 't' [-Wunused-variable]
66 | int t = 1;
| ^
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
0 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
0 ms |
212 KB |
Output is correct |
21 |
Correct |
0 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
212 KB |
Output is correct |
23 |
Correct |
0 ms |
212 KB |
Output is correct |
24 |
Correct |
0 ms |
212 KB |
Output is correct |
25 |
Correct |
0 ms |
212 KB |
Output is correct |
26 |
Correct |
0 ms |
212 KB |
Output is correct |
27 |
Correct |
0 ms |
212 KB |
Output is correct |
28 |
Correct |
0 ms |
212 KB |
Output is correct |
29 |
Correct |
0 ms |
212 KB |
Output is correct |
30 |
Correct |
0 ms |
212 KB |
Output is correct |
31 |
Correct |
0 ms |
212 KB |
Output is correct |
32 |
Correct |
0 ms |
212 KB |
Output is correct |
33 |
Correct |
0 ms |
212 KB |
Output is correct |
34 |
Correct |
0 ms |
212 KB |
Output is correct |
35 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
0 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
0 ms |
212 KB |
Output is correct |
21 |
Correct |
0 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
212 KB |
Output is correct |
23 |
Correct |
0 ms |
212 KB |
Output is correct |
24 |
Correct |
0 ms |
212 KB |
Output is correct |
25 |
Correct |
0 ms |
212 KB |
Output is correct |
26 |
Correct |
0 ms |
212 KB |
Output is correct |
27 |
Correct |
0 ms |
212 KB |
Output is correct |
28 |
Correct |
0 ms |
212 KB |
Output is correct |
29 |
Correct |
0 ms |
212 KB |
Output is correct |
30 |
Correct |
0 ms |
212 KB |
Output is correct |
31 |
Correct |
0 ms |
212 KB |
Output is correct |
32 |
Correct |
0 ms |
212 KB |
Output is correct |
33 |
Correct |
0 ms |
212 KB |
Output is correct |
34 |
Correct |
0 ms |
212 KB |
Output is correct |
35 |
Correct |
0 ms |
212 KB |
Output is correct |
36 |
Correct |
3 ms |
608 KB |
Output is correct |
37 |
Correct |
4 ms |
608 KB |
Output is correct |
38 |
Correct |
4 ms |
608 KB |
Output is correct |
39 |
Correct |
4 ms |
608 KB |
Output is correct |
40 |
Correct |
4 ms |
852 KB |
Output is correct |
41 |
Correct |
6 ms |
852 KB |
Output is correct |
42 |
Correct |
5 ms |
852 KB |
Output is correct |
43 |
Correct |
2 ms |
596 KB |
Output is correct |
44 |
Correct |
3 ms |
736 KB |
Output is correct |
45 |
Correct |
3 ms |
864 KB |
Output is correct |
46 |
Correct |
3 ms |
852 KB |
Output is correct |
47 |
Correct |
3 ms |
852 KB |
Output is correct |
48 |
Correct |
3 ms |
876 KB |
Output is correct |
49 |
Correct |
2 ms |
724 KB |
Output is correct |
50 |
Correct |
3 ms |
848 KB |
Output is correct |
51 |
Correct |
4 ms |
848 KB |
Output is correct |
52 |
Correct |
2 ms |
864 KB |
Output is correct |
53 |
Correct |
2 ms |
852 KB |
Output is correct |
54 |
Correct |
2 ms |
852 KB |
Output is correct |
55 |
Correct |
2 ms |
852 KB |
Output is correct |
56 |
Correct |
2 ms |
852 KB |
Output is correct |