33 lines
443 B
C++
33 lines
443 B
C++
#include <bits/stdc++.h>
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using namespace std;
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int main(){
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ios::sync_with_stdio(0);
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cin.tie(0);
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string s;
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cin >> s;
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string hello = "olleh";
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for(char& c : s){
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if(c == hello.back()){
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hello.pop_back();
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}
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if(hello.empty()){
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break;
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}
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}
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if(hello.empty()){
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cout << "YES";
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} else{
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cout << "NO";
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}
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cout << flush;
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return 0;
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}
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