#include<iostream>
#include<vector>
using namespace std;
vector<int> ipoint, opoint, jpoint;
int const N = 2e5 + 5;
int ov[N];
int inf = 1e9;
string s;
int main(){
ios::sync_with_stdio(0);
cin.tie(0);
int n, k;
cin >> n >> k;
cin >> s;
for(int i = 0; i < n; i++){
if(s[i] == 'I'){
ipoint.push_back(i);
}else if(s[i] == 'O'){
opoint.push_back(i);
}else{
jpoint.push_back(i);
}
}
int now = ipoint.size() - 1, minn = inf;
for(int i = opoint.size() - 1; i >= 0; i--){
if(i < k - 1){
ov[i] = inf;
continue;
}
int p = opoint[i];
while(now >= 0 && ipoint[now] > p){
if(now + k - 1 <= ipoint.size() - 1){
minn = ipoint[now + k - 1] + 1 - k;
}
now--;
}
if(minn == inf){
ov[i] = inf;
}else{
ov[i] = minn - opoint[i] - 1;
}
}
int ans = inf;
for(int i = 0; i < (int)jpoint.size() - k + 1; i++){
int op = lower_bound(opoint.begin(), opoint.end(), jpoint[i + k - 1]) - opoint.begin();
if(op + k - 1 >= opoint.size())
continue;
ans = min(ans, jpoint[i + k - 1] - jpoint[i] + 1 - k + opoint[op] - jpoint[i + k - 1] - 1 + ov[op + k - 1] + opoint[op + k - 1] - opoint[op] + 1 - k);
}
if(ans == inf){
cout << -1 << '\n';
}else{
cout << ans << '\n';
}
}
Compilation message
ho_t2.cpp: In function 'int main()':
ho_t2.cpp:32:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
32 | if(now + k - 1 <= ipoint.size() - 1){
| ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
ho_t2.cpp:46:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
46 | if(op + k - 1 >= opoint.size())
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
0 ms |
204 KB |
Output is correct |
| 4 |
Correct |
0 ms |
204 KB |
Output is correct |
| 5 |
Correct |
0 ms |
204 KB |
Output is correct |
| 6 |
Correct |
0 ms |
204 KB |
Output is correct |
| 7 |
Correct |
1 ms |
204 KB |
Output is correct |
| 8 |
Correct |
0 ms |
204 KB |
Output is correct |
| 9 |
Correct |
0 ms |
204 KB |
Output is correct |
| 10 |
Correct |
0 ms |
204 KB |
Output is correct |
| 11 |
Correct |
0 ms |
204 KB |
Output is correct |
| 12 |
Correct |
0 ms |
204 KB |
Output is correct |
| 13 |
Correct |
1 ms |
204 KB |
Output is correct |
| 14 |
Correct |
0 ms |
204 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
0 ms |
204 KB |
Output is correct |
| 4 |
Correct |
0 ms |
204 KB |
Output is correct |
| 5 |
Correct |
0 ms |
204 KB |
Output is correct |
| 6 |
Correct |
0 ms |
204 KB |
Output is correct |
| 7 |
Correct |
1 ms |
204 KB |
Output is correct |
| 8 |
Correct |
0 ms |
204 KB |
Output is correct |
| 9 |
Correct |
0 ms |
204 KB |
Output is correct |
| 10 |
Correct |
0 ms |
204 KB |
Output is correct |
| 11 |
Correct |
0 ms |
204 KB |
Output is correct |
| 12 |
Correct |
0 ms |
204 KB |
Output is correct |
| 13 |
Correct |
1 ms |
204 KB |
Output is correct |
| 14 |
Correct |
0 ms |
204 KB |
Output is correct |
| 15 |
Correct |
1 ms |
332 KB |
Output is correct |
| 16 |
Correct |
1 ms |
332 KB |
Output is correct |
| 17 |
Correct |
1 ms |
332 KB |
Output is correct |
| 18 |
Correct |
0 ms |
332 KB |
Output is correct |
| 19 |
Correct |
1 ms |
332 KB |
Output is correct |
| 20 |
Correct |
1 ms |
332 KB |
Output is correct |
| 21 |
Correct |
1 ms |
332 KB |
Output is correct |
| 22 |
Correct |
1 ms |
332 KB |
Output is correct |
| 23 |
Correct |
0 ms |
332 KB |
Output is correct |
| 24 |
Correct |
1 ms |
332 KB |
Output is correct |
| 25 |
Correct |
1 ms |
332 KB |
Output is correct |
| 26 |
Correct |
1 ms |
332 KB |
Output is correct |
| 27 |
Correct |
1 ms |
332 KB |
Output is correct |
| 28 |
Correct |
1 ms |
332 KB |
Output is correct |
| 29 |
Correct |
1 ms |
332 KB |
Output is correct |
| 30 |
Correct |
1 ms |
332 KB |
Output is correct |
| 31 |
Correct |
0 ms |
332 KB |
Output is correct |
| 32 |
Correct |
1 ms |
332 KB |
Output is correct |
| 33 |
Correct |
0 ms |
332 KB |
Output is correct |
| 34 |
Correct |
1 ms |
332 KB |
Output is correct |
| 35 |
Correct |
1 ms |
332 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
0 ms |
204 KB |
Output is correct |
| 4 |
Correct |
0 ms |
204 KB |
Output is correct |
| 5 |
Correct |
0 ms |
204 KB |
Output is correct |
| 6 |
Correct |
0 ms |
204 KB |
Output is correct |
| 7 |
Correct |
1 ms |
204 KB |
Output is correct |
| 8 |
Correct |
0 ms |
204 KB |
Output is correct |
| 9 |
Correct |
0 ms |
204 KB |
Output is correct |
| 10 |
Correct |
0 ms |
204 KB |
Output is correct |
| 11 |
Correct |
0 ms |
204 KB |
Output is correct |
| 12 |
Correct |
0 ms |
204 KB |
Output is correct |
| 13 |
Correct |
1 ms |
204 KB |
Output is correct |
| 14 |
Correct |
0 ms |
204 KB |
Output is correct |
| 15 |
Correct |
1 ms |
332 KB |
Output is correct |
| 16 |
Correct |
1 ms |
332 KB |
Output is correct |
| 17 |
Correct |
1 ms |
332 KB |
Output is correct |
| 18 |
Correct |
0 ms |
332 KB |
Output is correct |
| 19 |
Correct |
1 ms |
332 KB |
Output is correct |
| 20 |
Correct |
1 ms |
332 KB |
Output is correct |
| 21 |
Correct |
1 ms |
332 KB |
Output is correct |
| 22 |
Correct |
1 ms |
332 KB |
Output is correct |
| 23 |
Correct |
0 ms |
332 KB |
Output is correct |
| 24 |
Correct |
1 ms |
332 KB |
Output is correct |
| 25 |
Correct |
1 ms |
332 KB |
Output is correct |
| 26 |
Correct |
1 ms |
332 KB |
Output is correct |
| 27 |
Correct |
1 ms |
332 KB |
Output is correct |
| 28 |
Correct |
1 ms |
332 KB |
Output is correct |
| 29 |
Correct |
1 ms |
332 KB |
Output is correct |
| 30 |
Correct |
1 ms |
332 KB |
Output is correct |
| 31 |
Correct |
0 ms |
332 KB |
Output is correct |
| 32 |
Correct |
1 ms |
332 KB |
Output is correct |
| 33 |
Correct |
0 ms |
332 KB |
Output is correct |
| 34 |
Correct |
1 ms |
332 KB |
Output is correct |
| 35 |
Correct |
1 ms |
332 KB |
Output is correct |
| 36 |
Correct |
7 ms |
1748 KB |
Output is correct |
| 37 |
Correct |
7 ms |
1936 KB |
Output is correct |
| 38 |
Correct |
8 ms |
1816 KB |
Output is correct |
| 39 |
Correct |
7 ms |
1820 KB |
Output is correct |
| 40 |
Correct |
7 ms |
1744 KB |
Output is correct |
| 41 |
Correct |
6 ms |
1684 KB |
Output is correct |
| 42 |
Correct |
8 ms |
1936 KB |
Output is correct |
| 43 |
Correct |
4 ms |
1256 KB |
Output is correct |
| 44 |
Correct |
5 ms |
1488 KB |
Output is correct |
| 45 |
Correct |
7 ms |
1796 KB |
Output is correct |
| 46 |
Correct |
7 ms |
1736 KB |
Output is correct |
| 47 |
Correct |
9 ms |
1744 KB |
Output is correct |
| 48 |
Correct |
7 ms |
1744 KB |
Output is correct |
| 49 |
Correct |
4 ms |
1328 KB |
Output is correct |
| 50 |
Correct |
7 ms |
1732 KB |
Output is correct |
| 51 |
Correct |
6 ms |
1744 KB |
Output is correct |
| 52 |
Correct |
5 ms |
1616 KB |
Output is correct |
| 53 |
Correct |
4 ms |
1724 KB |
Output is correct |
| 54 |
Correct |
3 ms |
1748 KB |
Output is correct |
| 55 |
Correct |
3 ms |
1748 KB |
Output is correct |
| 56 |
Correct |
3 ms |
1748 KB |
Output is correct |
