#include <bits/stdc++.h>
#define int long long int
#define F first
#define S second
#define pb push_back
#define mp make_pair
#define pi pair<int, int>
#define INF 1e13
using namespace std;
int N, K, ans = INF;
string S;
vector<int> js, os, is;
int32_t main() {
ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
cin >> N >> K >> S;
for (int i = 0; i < N; i++) {
if (S[i] == 'J') js.pb(i);
if (S[i] == 'O') os.pb(i);
if (S[i] == 'I') is.pb(i);
}
for (int i = 0; i <= js.size() - K; i++) {
int total = 0;
int curI = js[i];
for (int j = 0; j < K - 1; j++) {
total += js[i + j + 1] - js[i + j] - 1;
curI = js[i + j + 1];
}
int off = upper_bound(os.begin(), os.end(), curI) - os.begin();
// cout << curI << "." << off << " ";
if (off >= os.size() or os.size() - off + 1 < K) continue;
cout << (os.size() - off + 1) << endl;
curI = os[off];
for (int j = 0; j < K - 1; j++) {
total += os[off + j + 1] - os[off + j] - 1;
curI = os[off + j + 1];
}
int off2 = upper_bound(is.begin(), is.end(), curI) - is.begin();
if (off2 >= is.size() or is.size() - off2 + 1 < K) continue;
curI = is[off2];
for (int j = 0; j < K - 1; j++) {
total += is[off2 + j + 1] - is[off2 + j] - 1;
curI = is[off2 + j + 1];
}
ans = min(ans, total);
}
cout << (ans == INF ? -1 : ans) << "\n";
return 0;
}
Compilation message
ho_t2.cpp: In function 'int32_t main()':
ho_t2.cpp:31:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'long long unsigned int' [-Wsign-compare]
31 | for (int i = 0; i <= js.size() - K; i++) {
| ~~^~~~~~~~~~~~~~~~
ho_t2.cpp:40:11: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
40 | if (off >= os.size() or os.size() - off + 1 < K) continue;
| ~~~~^~~~~~~~~~~~
ho_t2.cpp:40:47: warning: comparison of integer expressions of different signedness: 'long long unsigned int' and 'long long int' [-Wsign-compare]
40 | if (off >= os.size() or os.size() - off + 1 < K) continue;
| ~~~~~~~~~~~~~~~~~~~~^~~
ho_t2.cpp:48:12: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
48 | if (off2 >= is.size() or is.size() - off2 + 1 < K) continue;
| ~~~~~^~~~~~~~~~~~
ho_t2.cpp:48:49: warning: comparison of integer expressions of different signedness: 'long long unsigned int' and 'long long int' [-Wsign-compare]
48 | if (off2 >= is.size() or is.size() - off2 + 1 < K) continue;
| ~~~~~~~~~~~~~~~~~~~~~^~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
