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  1. #include <bits/stdc++.h>
  2.  
  3. #define ne "\n"
  4. #define ll  long long
  5. #define re return
  6. #define all(v) (v.begin(),v.end())
  7. #define sz(v) ((int)(v.size()))
  8. #define fast() ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
  9.  
  10. typedef  std::vector<int> vec;
  11.  
  12. using namespace std;
  13.  
  14. int main() {
  15. int k;cin>>k;
  16. string s;cin>>s;
  17. map<char,int>freq;
  18. for(int i=0;i<s.size();i++) {
  19.     freq[s[i]]++;
  20. }
  21. for(int i=0;i<s.size();i++)
  22. {
  23.     if(freq[s[i]]%k!=0)
  24.     {
  25.         cout<<"-1"<<ne;
  26.         re 0;
  27.     }
  28. }
  29. sort all(s);
  30. string ans;
  31. int l;
  32. for(int i=0;i<s.size();i++)
  33. {
  34.     l=freq[s[i]]/k;
  35.     while(l--)
  36.         ans+=s[i];
  37.     freq[s[i]]=0;
  38. }
  39.  
  40. while(k--)
  41.     cout<<ans;
  42. cout<<ne;
  43. }
Success #stdin #stdout 0.01s 5296KB
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https://ideone.com/G6vQ9C
language:
C++ (gcc 8.3)
created:
2 years ago
visibility:
public

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