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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5.  
  6. int n;
  7. cin>>n;
  8. set<char>s;
  9. string str;
  10. cin>>str;
  11. for(int i=0;i<str.length();i++){
  12. str[i]=tolower(str[i]);
  13. s.insert(str[i]);
  14. }
  15. int t=s.size();
  16. if(t==26)
  17. cout<<"YES"<<"\n";
  18. else
  19. cout<<"NO"<<"\n";
  20.  
  21. return 0;
  22. }
Success #stdin #stdout 0.01s 5372KB
stdin
12
toosmallword
stdout
NO