fork download 
  1. #include<bits/stdc++.h>
  2. #define ll long long
  3. using namespace std;
  4.  
  5.  
  6. int main(){
  7.     string s;
  8.     cin>>s;
  9.     vector<char>v;
  10.     for(int i=0;i<s.size();i+=2){
  11.         v.push_back(s[i]);
  12.     }
  13.     sort(v.begin(),v.end());
  14.  
  15.     for(int i=0;i<v.size();i++){
  16.         cout<<v[i];
  17.         if(i!=v.size()-1)
  18.             cout<<"+";
  19.     }
  20. }
Success #stdin #stdout 0.01s 5312KB
comments (?)
stdin 
Standard input is empty
stdout 
Standard output is empty
https://ideone.com/bnEuwn
language:
C++14 (gcc 8.3)
created:
10 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!