Codeforces-SolutionsA/236A Boy Or Girl/236A.cpp

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#include <bits/stdc++.h>
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using namespace std;
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using ll = long long;
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int l[26];
void solve()
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{
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string s;
cin>>s;
for(int i=0; i<s.size(); ++i)
{
l[s[i]-'a']++;
}
int ct=0;
for(int i=0; i<26; ++i)
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{
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if(l[i]>0) ct++;
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}
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if(ct%2==0) cout<<"CHAT WITH HER!"<<endl;
else cout<<"IGNORE HIM!"<<endl;
}
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
int TC = 1;
//cin >> TC;
//cin.ignore();
while (TC--) solve();
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}