#include <bits/stdc++.h>
using namespace std;
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
string s;
cin >> s;
stack<char> st;
while (!s.empty()) {
if (st.empty() || st.top() == 'H') {
if (s.back() == 'I')
st.push('I');
} else {
if (st.top() == 'I' && s.back() == 'N')
st.push('N');
else if (st.top() == 'N' && s.back() == 'O')
st.push('O');
else if (st.top() == 'O' && s.back() == 'H')
st.push('H');
}
s.pop_back();
}
cout << st.size() / 4 << '\n';
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
376 KB |
Output is correct |
2 |
Correct |
5 ms |
376 KB |
Output is correct |
3 |
Correct |
5 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
376 KB |
Output is correct |
2 |
Correct |
5 ms |
376 KB |
Output is correct |
3 |
Correct |
5 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
376 KB |
Output is correct |
2 |
Correct |
5 ms |
380 KB |
Output is correct |
3 |
Correct |
5 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
376 KB |
Output is correct |
2 |
Correct |
5 ms |
376 KB |
Output is correct |
3 |
Correct |
5 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
380 KB |
Output is correct |
2 |
Correct |
5 ms |
376 KB |
Output is correct |
3 |
Correct |
5 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
504 KB |
Output is correct |
2 |
Correct |
6 ms |
504 KB |
Output is correct |
3 |
Correct |
6 ms |
504 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
508 KB |
Output is correct |
2 |
Correct |
6 ms |
504 KB |
Output is correct |
3 |
Correct |
6 ms |
504 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
540 KB |
Output is correct |
2 |
Correct |
6 ms |
504 KB |
Output is correct |
3 |
Correct |
6 ms |
504 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
504 KB |
Output is correct |
2 |
Correct |
6 ms |
540 KB |
Output is correct |
3 |
Correct |
6 ms |
632 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
504 KB |
Output is correct |
2 |
Correct |
6 ms |
632 KB |
Output is correct |
3 |
Correct |
6 ms |
504 KB |
Output is correct |