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  1. #include <list>
  2. #include <algorithm>
  3. #include <iostream>
  4. #include <iterator>
  5. int main()
  6. {
  7.     std::list<int> data = {1,2,5,10,15,16,20};
  8.     std::unique_copy(data.begin(), data.end(),
  9.                     std::ostream_iterator<int>(std::cout, " "),
  10.                     [](int n, int m){return abs(n-m)<=1;});
  11.     std::cout << '\n';
  12. }
Success #stdin #stdout 0s 2960KB
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stdin
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Standard input is empty
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1 5 10 15 20
https://ideone.com/OnGxk
language:
C++14 (gcc 8.3)
created:
13 years ago
visibility:
public

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