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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. int main()
  4. {
  5.     string s;
  6.     cin >> s;
  7.     vector<char> v;
  8.     int n = s.size();
  9.     for (int i = 0; i < n; i++)
  10.     {
  11.         if (s[i] != '+')
  12.         {
  13.             v.push_back(s[i]);
  14.         }
  15.     }
  16.     sort(v.begin(), v.end());
  17.     bool first = true;
  18.     for (auto i : v)
  19.     {
  20.         if (first)
  21.         {
  22.             cout << i;
  23.             first=false;
  24.         }
  25.         else
  26.         {
  27.             cout << "+" << i;
  28.         }
  29.     }
  30.  
  31.     return 0;
  32. }
Success #stdin #stdout 0.01s 5280KB
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https://ideone.com/cczmED
language:
C++ (gcc 8.3)
created:
8 days ago
visibility:
public

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