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  1. #include <iostream>
  2. #include <string>
  3. using namespace std;
  4.  
  5. int main()
  6. {
  7.     string a = "abbaca";
  8.     int i = 0;
  9.     while (i < a.size()){
  10.         if (a[i] == a[i+1]){
  11.             a.erase(i, 2);
  12.             i = 0;
  13.         }
  14.         else{
  15.             i++;
  16.         }
  17.     }
  18.     cout << a;
  19.  
  20.     return 0;
  21. }
Success #stdin #stdout 0s 5300KB
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ca
https://ideone.com/bQVkdd
language:
C++ (gcc 8.3)
created:
3 years ago
visibility:
public

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