#include<iostream>
#include<stdio.h>
#include<stdint.h>
#include<iomanip>
#include<algorithm>
#include<utility>
#include<vector>
#include<stack>
#include<queue>
#include<set>
#include<map>
#include<deque>
#include<math.h>
#include<assert.h>
using namespace std;
const int64_t INF = 1e18 + 5;
const int64_t mINF = 1e9 + 5;
const int64_t MOD = 1e9 + 7;
const int nbit = 31;
const int nchar = 26;
const int D = 4;
int dr[D] = {1, -1, -1, 1};
int dc[D] = {1, 1, 1, -1};
struct Solution
{
int n;
int k;
string s;
Solution() {}
void solve()
{
cin >> n >> k >> s;
vector<int> posj;
vector<int> poso;
vector<int> posi;
for(int i = 0; i < n; i++)
{
if(s[i] == 'J') posj.push_back(i);
if(s[i] == 'O') poso.push_back(i);
if(s[i] == 'I') posi.push_back(i);
}
int j = k - 1;
int lo = 0;
int ro = 0;
int li = 0;
int ri = 0;
int ans = mINF;
while(j < (int) posj.size() && ro < (int) poso.size() && ri < (int) posi.size())
{
while(lo < (int) poso.size() && poso[lo] < posj[j]) lo++;
while(ro < (int) poso.size() && (ro - lo + 1) != k) ro++;
if(ro == (int) poso.size()) break;
while(li < (int) posi.size() && posi[li] < poso[ro]) li++;
while(ri < (int) posi.size() && (ri - li + 1) != k) ri++;
if(ri == (int) posi.size()) break;
ans = min(ans, posi[ri] - posj[j - k + 1] + 1);
j++;
}
if(ans == mINF) cout << "-1\n";
else cout << ans - k * 3 << "\n";
}
int getID(char c)
{
if(c == 'J') return 0;
if(c == 'O') return 1;
return 2;
}
int modadd(int t1, int t2)
{
int res = t1 + t2;
if(res >= MOD) res -= MOD;
return res;
}
int Abs(int tmp)
{
if(tmp < 0) return -tmp;
return tmp;
}
int64_t MASK(int j)
{
return (1LL << j);
}
bool BIT(int64_t tmp, int j)
{
return (tmp & MASK(j));
}
};
void __setup()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL); cout.tie(NULL);
// freopen("in.txt", "r", stdin);
// freopen("out.txt", "w", stdout);
}
int main()
{
__setup();
int t = 1;
// cin >> t;
for(int i = 1; i <= t; i++)
{
Solution().solve();
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
316 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 |
320 KB |
Output is correct |
6 |
Correct |
1 ms |
320 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
320 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 |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
316 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 |
320 KB |
Output is correct |
6 |
Correct |
1 ms |
320 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
320 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 |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
0 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
324 KB |
Output is correct |
19 |
Correct |
1 ms |
324 KB |
Output is correct |
20 |
Correct |
0 ms |
320 KB |
Output is correct |
21 |
Correct |
0 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
1 ms |
320 KB |
Output is correct |
26 |
Correct |
0 ms |
340 KB |
Output is correct |
27 |
Correct |
1 ms |
320 KB |
Output is correct |
28 |
Correct |
1 ms |
340 KB |
Output is correct |
29 |
Correct |
1 ms |
324 KB |
Output is correct |
30 |
Correct |
1 ms |
320 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 |
316 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 |
320 KB |
Output is correct |
6 |
Correct |
1 ms |
320 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
320 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 |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
0 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
324 KB |
Output is correct |
19 |
Correct |
1 ms |
324 KB |
Output is correct |
20 |
Correct |
0 ms |
320 KB |
Output is correct |
21 |
Correct |
0 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
1 ms |
320 KB |
Output is correct |
26 |
Correct |
0 ms |
340 KB |
Output is correct |
27 |
Correct |
1 ms |
320 KB |
Output is correct |
28 |
Correct |
1 ms |
340 KB |
Output is correct |
29 |
Correct |
1 ms |
324 KB |
Output is correct |
30 |
Correct |
1 ms |
320 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 |
4 ms |
1612 KB |
Output is correct |
37 |
Correct |
5 ms |
1808 KB |
Output is correct |
38 |
Correct |
5 ms |
1956 KB |
Output is correct |
39 |
Correct |
5 ms |
1956 KB |
Output is correct |
40 |
Correct |
4 ms |
2008 KB |
Output is correct |
41 |
Correct |
5 ms |
1940 KB |
Output is correct |
42 |
Correct |
6 ms |
1824 KB |
Output is correct |
43 |
Correct |
2 ms |
1268 KB |
Output is correct |
44 |
Correct |
3 ms |
1496 KB |
Output is correct |
45 |
Correct |
4 ms |
2104 KB |
Output is correct |
46 |
Correct |
4 ms |
1988 KB |
Output is correct |
47 |
Correct |
4 ms |
1980 KB |
Output is correct |
48 |
Correct |
5 ms |
2008 KB |
Output is correct |
49 |
Correct |
3 ms |
1336 KB |
Output is correct |
50 |
Correct |
4 ms |
1996 KB |
Output is correct |
51 |
Correct |
4 ms |
2008 KB |
Output is correct |
52 |
Correct |
3 ms |
1476 KB |
Output is correct |
53 |
Correct |
4 ms |
1740 KB |
Output is correct |
54 |
Correct |
3 ms |
2040 KB |
Output is correct |
55 |
Correct |
2 ms |
1988 KB |
Output is correct |
56 |
Correct |
3 ms |
2012 KB |
Output is correct |