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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. int main(){
  4.     string s;
  5.     cin>>s;
  6.     int dem=0;
  7.     for(int i=0;i<s.size()/2;i++)
  8.     {
  9.         if(s[i]!=s[s.size()-i-1]) dem++;
  10.     }
  11.     if(dem<=1) cout<<"YES";
  12.     else cout<<"NO";
  13. }
Success #stdin #stdout 0.01s 5320KB
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stdin
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Standard input is empty
stdout
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YES
https://ideone.com/9OrKSb
language:
C++14 (gcc 8.3)
created:
12 hours ago
visibility:
public

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