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  1. #include <iostream>
  2. #include <algorithm>
  3. #include <cstddef>
  4.  
  5.  
  6. int main() {
  7. 	std::vector<int> sequence;
  8. 	for (int value; std::cin >> value; ) {
  9. 	   sequence.push_back(value);
  10. 	}
  11.  
  12. 	std::sort(sequence.begin(), sequence.end());
  13.  
  14.     std::size_t const last = sequence.size();
  15.     std::size_t first      = 0;
  16.     std::size_t result     = 0;
  17.     while (first != last) {
  18.        std::size_t localLast = first + 1;
  19.        for ( ; localLast != last && sequence[localLast] == sequence[first]; ++localLast);
  20.  
  21.        if (localLast != first + 1) {
  22.           sequence[result++] = sequence[first];
  23.           first = localLast;
  24.        } else {
  25.           ++first;
  26.        }
  27.     }
  28.  
  29. 	if (result != 0) {
  30. 	   for (std::size_t i = 0; i != result; ++i) {
  31.           std::cout << sequence[i] << '\t';
  32.        }
  33. 	   std::cout << std::endl;
  34. 	} else {
  35. 	   std::cout << "all elements are unique" << std::endl;
  36. 	}
  37. }
Success #stdin #stdout 0s 3480KB
comments (?)
stdin
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1 1 2 3 2 2 1 4 5 6 8 5 5
stdout
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1	2	5
https://ideone.com/s9xISZ
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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