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  1. #include <iostream>
  2. #include <vector>
  3. #include <algorithm>
  4.  
  5. using namespace std;
  6.  
  7. // Function to purge duplicates
  8. void purgeDuplicates(vector<int>& vec) {
  9.     // Sort the list to bring duplicates together
  10.     sort(vec.begin(), vec.end());
  11.  
  12.     // Remove duplicates using unique and erase
  13.     auto last = unique(vec.begin(), vec.end());
  14.     vec.erase(last, vec.end());
  15. }
  16.  
  17. // Function to reverse the list
  18. void reverseList(vector<int>& vec) {
  19.     reverse(vec.begin(), vec.end());
  20. }
  21.  
  22. int main() {
  23.     vector<int> myList = {10, 20, 30, 20, 60, 2};
  24.  
  25.     // Display the list
  26.     cout << "List is: ";
  27.     for (int n : myList) {
  28.         cout << n << " ";
  29.     }
  30.     cout << endl;
  31.  
  32.     // Display the size of the list
  33.     cout << "Size: " << myList.size() << endl;
  34.  
  35.     // Purge duplicates
  36.     purgeDuplicates(myList);
  37.  
  38.     // Display the list after purge
  39.     cout << "After purge: List is: ";
  40.     for (int n : myList) {
  41.         cout << n << " ";
  42.     }
  43.     cout << endl;
  44.  
  45.     // Reverse the list
  46.     reverseList(myList);
  47.  
  48.     // Display the list after reverse
  49.     cout << "After reverse: List is: ";
  50.     for (int n : myList) {
  51.         cout << n << " ";
  52.     }
  53.     cout << endl;
  54.  
  55.     return 0;
  56. }
  57.  
Success #stdin #stdout 0.01s 5284KB
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stdin
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Standard input is empty
stdout
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List is: 10 20 30 20 60 2 
Size: 6
After purge: List is: 2 10 20 30 60 
After reverse: List is: 60 30 20 10 2
https://ideone.com/PpTN6W
language:
C++ (gcc 8.3)
created:
5 days ago
visibility:
public

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