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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. string findMinimumLength(string s,int k){
  5.   map<int,int>freq;
  6.   int n = s.size();
  7.   for(int i=0;i<n;i++){
  8.     freq[s[i]-'a']++;
  9.   }
  10.   vector<pair<int,int>>v;
  11.   for(auto i:freq){
  12.     v.push_back({i.second,i.first});
  13.   }
  14.   sort(v.begin(),v.end(),greater<pair<int,int>>());
  15.   string final = "";
  16.   int mx = max(k,(int)freq.size());
  17.   int m = v.size();
  18.   int cnt=0;
  19.   while(true){
  20.     for(int i=0;i<m;i++){
  21.       if(v[i].first>0){
  22.         final+=((v[i].second)+'a');
  23.         v[i].first--;
  24.         if(v[i].first==0){
  25.           cnt++;
  26.         }
  27.       }
  28.     }
  29.     if(m<mx){
  30.       for(int i=0;i<(mx-m);i++){
  31.         final+='#';
  32.       }
  33.     }
  34.     if(cnt==m){
  35.       break;
  36.     }
  37.   }
  38.   return final;
  39. }
  40.  
  41. int main() {
  42. 	// your code goes here
  43. 	cout << findMinimumLength("aba",2)<< endl;
  44.  
  45. 	return 0;
  46. }
Success #stdin #stdout 0.01s 5284KB
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Standard input is empty
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aba
https://ideone.com/DjO0Op
language:
C++14 (gcc 8.3)
created:
9 days ago
visibility:
public

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