#include <bits/stdc++.h>
#define int long long
#define endl '\n'
using namespace std;
const int N = 100001,INF=1e12;
int32_t main()
{
//freopen("abc.in", "r", stdin);
int n , k ;
cin >> n >> k;
string s;
cin>>s;
vector<int>J(n),I(n),O(n);
for(int i = 0 ; i < s.size() ; i ++){
if(s[i]=='J') J[i]++;
if(s[i]=='O') O[i]++;
if(s[i]=='I') I[i]++;
if(i) J[i]+=J[i-1],I[i]+=I[i-1],O[i]+=O[i-1];
}
int ans=INT_MAX;
for(int i = 0 ; i < n ; i ++)
{
int start = i ;
int cons=J[i]; if(s[i]=='J') cons--;
auto it = lower_bound(J.begin(),J.end(),cons+k);
if(it==J.end()) break;
int ptr2 = it-J.begin();
it = lower_bound(O.begin(),O.end(),O[ptr2]+k);
if(it==O.end()) break;
int ptr3 = it-O.begin();
it = lower_bound(I.begin(),I.end(),I[ptr3]+k);
if(it==I.end()) break;
int ptr4 = it-I.begin();
ans=min(ans,(ptr4-start+1)-(k*3));
}
if(ans==INT_MAX) ans=-1;
cout<<ans;
}
Compilation message
ho_t2.cpp: In function 'int32_t main()':
ho_t2.cpp:14:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
14 | for(int i = 0 ; i < s.size() ; i ++){
| ~~^~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 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 |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
0 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 |
1 ms |
260 KB |
Output is correct |
10 |
Correct |
1 ms |
296 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 |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 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 |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
0 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 |
1 ms |
260 KB |
Output is correct |
10 |
Correct |
1 ms |
296 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 |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
296 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 |
300 KB |
Output is correct |
23 |
Correct |
1 ms |
304 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
296 KB |
Output is correct |
27 |
Correct |
1 ms |
340 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 |
1 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 |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 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 |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
0 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 |
1 ms |
260 KB |
Output is correct |
10 |
Correct |
1 ms |
296 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 |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
296 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 |
300 KB |
Output is correct |
23 |
Correct |
1 ms |
304 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
296 KB |
Output is correct |
27 |
Correct |
1 ms |
340 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 |
1 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 |
30 ms |
5188 KB |
Output is correct |
37 |
Correct |
31 ms |
5476 KB |
Output is correct |
38 |
Correct |
38 ms |
5520 KB |
Output is correct |
39 |
Correct |
29 ms |
5456 KB |
Output is correct |
40 |
Correct |
13 ms |
5476 KB |
Output is correct |
41 |
Correct |
22 ms |
5448 KB |
Output is correct |
42 |
Correct |
30 ms |
5476 KB |
Output is correct |
43 |
Correct |
6 ms |
3524 KB |
Output is correct |
44 |
Correct |
7 ms |
4324 KB |
Output is correct |
45 |
Correct |
9 ms |
5448 KB |
Output is correct |
46 |
Correct |
8 ms |
5476 KB |
Output is correct |
47 |
Correct |
8 ms |
5476 KB |
Output is correct |
48 |
Correct |
9 ms |
5476 KB |
Output is correct |
49 |
Correct |
6 ms |
3852 KB |
Output is correct |
50 |
Correct |
9 ms |
5476 KB |
Output is correct |
51 |
Correct |
11 ms |
5448 KB |
Output is correct |
52 |
Correct |
9 ms |
5316 KB |
Output is correct |
53 |
Correct |
9 ms |
5444 KB |
Output is correct |
54 |
Correct |
14 ms |
5476 KB |
Output is correct |
55 |
Correct |
10 ms |
5448 KB |
Output is correct |
56 |
Correct |
8 ms |
5476 KB |
Output is correct |