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achulkov2

Untitled

Mar 22nd, 2018
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  1. #include <iostream>
  2. #include <cmath>
  3. #include <cstring>
  4. #include <string>
  5. using namespace std;
  6. int main(){
  7. int n,i,k;
  8. char m;
  9. cin>>n;
  10. int a[150];
  11. for(i=0;i<150;i++)a[i]=0;
  12.  
  13. for(i=0;i<n;i++){
  14. cin>>m;
  15. a[m]++;
  16. }
  17. //for(i=0;i<150;i++)cout<<a[i];
  18.  
  19.  
  20. for(i='A';i<='Z';i++)
  21. for(k=0;k<a[i]/2;k++)
  22. cout<<char(i);
  23.  
  24. for(i='A';i<='Z';i++)if(a[i]%2==1){cout<<char(i);break;}
  25.  
  26. for(i='Z';i>='A';i--)
  27. for(k=0;k<a[i]/2;k++)
  28. cout<<char(i);
  29. }
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