#include <bits/stdc++.h>
using namespace std;
typedef long long lli;
#define f0(i,n) for(int32_t i = 0; i < (n); i++)
#define f1(i,n) for(int32_t i = 1; i <= (n); i++)
#define inp(n) lli n; cin >> n
#define inparr(arr,n) lli arr[n]; f0(t_ind, n) cin >> arr[t_ind]
#define all(x) (x).begin(), (x).end()
int main () {
inp(n);
inp(k);
string s;
cin >> s;
int nextkthJ[n];
int nextkthO[n];
int nextkthI[n];
memset(nextkthJ, -1, sizeof(nextkthJ));
memset(nextkthO, -1, sizeof(nextkthO));
memset(nextkthI, -1, sizeof(nextkthI));
int l=0, r=0, cnt = 0;
while (r < n) {
if (s[r] == 'J') {
cnt++;
}
if (cnt == k) {
while(s[l] != 'J') {
nextkthJ[l] = r;
l++;
}
nextkthJ[l] = r;
l++;
cnt--;
}
r++;
}
l=0, r=0, cnt = 0;
while (r < n) {
if (s[r] == 'O') {
cnt++;
}
if (cnt == k) {
while(s[l] != 'O') {
nextkthO[l] = r;
l++;
}
nextkthO[l] = r;
l++;
cnt--;
}
r++;
}
l=0, r=0, cnt = 0;
while (r < n) {
if (s[r] == 'I') {
cnt++;
}
if (cnt == k) {
while(s[l] != 'I') {
nextkthI[l] = r;
l++;
}
nextkthI[l] = r;
l++;
cnt--;
}
r++;
}
lli ans = 1e9;
f0(i, n) {
if(nextkthJ[i] == -1) break;
if(nextkthO[nextkthJ[i]] == -1) break;
if(nextkthI[nextkthO[nextkthJ[i]]] == -1) break;
ans = min(ans, (lli)nextkthI[nextkthO[nextkthJ[i]]] - i + 1);
}
if(ans == 1e9) cout << -1 << endl;
else cout << ans - 3*k << endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
300 KB |
Output is correct |
14 |
Correct |
0 ms |
296 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
300 KB |
Output is correct |
14 |
Correct |
0 ms |
296 KB |
Output is correct |
15 |
Correct |
1 ms |
300 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
296 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
296 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
1 ms |
296 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
304 KB |
Output is correct |
27 |
Correct |
1 ms |
300 KB |
Output is correct |
28 |
Correct |
1 ms |
340 KB |
Output is correct |
29 |
Correct |
1 ms |
340 KB |
Output is correct |
30 |
Correct |
1 ms |
340 KB |
Output is correct |
31 |
Correct |
0 ms |
212 KB |
Output is correct |
32 |
Correct |
1 ms |
340 KB |
Output is correct |
33 |
Correct |
1 ms |
340 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
300 KB |
Output is correct |
14 |
Correct |
0 ms |
296 KB |
Output is correct |
15 |
Correct |
1 ms |
300 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
296 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
296 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
1 ms |
296 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
304 KB |
Output is correct |
27 |
Correct |
1 ms |
300 KB |
Output is correct |
28 |
Correct |
1 ms |
340 KB |
Output is correct |
29 |
Correct |
1 ms |
340 KB |
Output is correct |
30 |
Correct |
1 ms |
340 KB |
Output is correct |
31 |
Correct |
0 ms |
212 KB |
Output is correct |
32 |
Correct |
1 ms |
340 KB |
Output is correct |
33 |
Correct |
1 ms |
340 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
1 ms |
340 KB |
Output is correct |
36 |
Correct |
9 ms |
2980 KB |
Output is correct |
37 |
Correct |
10 ms |
3172 KB |
Output is correct |
38 |
Correct |
10 ms |
3172 KB |
Output is correct |
39 |
Correct |
14 ms |
3148 KB |
Output is correct |
40 |
Correct |
11 ms |
3172 KB |
Output is correct |
41 |
Correct |
13 ms |
3172 KB |
Output is correct |
42 |
Correct |
12 ms |
3168 KB |
Output is correct |
43 |
Correct |
6 ms |
2020 KB |
Output is correct |
44 |
Correct |
7 ms |
2532 KB |
Output is correct |
45 |
Correct |
11 ms |
3176 KB |
Output is correct |
46 |
Correct |
9 ms |
3144 KB |
Output is correct |
47 |
Correct |
10 ms |
3176 KB |
Output is correct |
48 |
Correct |
9 ms |
3172 KB |
Output is correct |
49 |
Correct |
6 ms |
2148 KB |
Output is correct |
50 |
Correct |
9 ms |
3172 KB |
Output is correct |
51 |
Correct |
10 ms |
3144 KB |
Output is correct |
52 |
Correct |
6 ms |
3016 KB |
Output is correct |
53 |
Correct |
7 ms |
3044 KB |
Output is correct |
54 |
Correct |
6 ms |
3172 KB |
Output is correct |
55 |
Correct |
7 ms |
3144 KB |
Output is correct |
56 |
Correct |
6 ms |
3140 KB |
Output is correct |