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  1. #include <iostream>
  2. #include<bits/stdc++.h>
  3. using namespace std;
  4.  
  5.  
  6. string change(string s)
  7. {
  8.     int n=s.size();
  9.  
  10.     vector<int> v;
  11.  
  12.     for(int i=0;i<n;i++)
  13.     {
  14.         if(isdigit(s[i]))
  15.         {
  16.             v.push_back(s[i]-'0');
  17.         }
  18.     }
  19.     string ans="";
  20.  
  21.     sort(v.begin(),v.end());
  22.  
  23.     int a=v.size();
  24.  
  25.     for(int i=0;i<a;i++)
  26.     {
  27.         ans.push_back(v[i]+'0');
  28.         if(i!=(a-1))
  29.         ans.push_back('+');
  30.     }
  31.  
  32.     return ans;
  33. }
  34. int main()
  35. {
  36.     cout << change("6+3");
  37.     return 0;
  38. }
Success #stdin #stdout 0.01s 5476KB
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stdin
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Standard input is empty
stdout
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3+6
https://ideone.com/8UBlto
language:
C++ (gcc 8.3)
created:
339 days ago
visibility:
public

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