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  1. #include <iostream>
  2. #include <vector>
  3. #include <algorithm>
  4. using namespace std;
  5.  
  6. void twoPointerSort(vector<int>& arr) {
  7.     int n = arr.size();
  8.     int left = 0;
  9.     int right = n - 1;
  10.  
  11.     // Sort the array using two pointers
  12.     while (left < right) {
  13.         if (arr[left] > arr[right]) {
  14.             // Swap elements
  15.             int temp = arr[left];
  16.             arr[left] = arr[right];
  17.             arr[right] = temp;
  18.         }
  19.         // Move left pointer to the next element
  20.         left++;
  21.         // Move right pointer to the previous element
  22.         right--;
  23.     }
  24. }
  25.  
  26. int main() {
  27.     vector<int> arr = {4, 1, 100, 10, 0};
  28.  
  29.     cout << "Original array: ";
  30.     for (int num : arr) {
  31.         cout << num << " ";
  32.     }
  33.     cout << endl;
  34.  
  35.     twoPointerSort(arr);
  36.  
  37.     cout << "Sorted array: ";
  38.     for (int num : arr) {
  39.         cout << num << " ";
  40.     }
  41.     cout << endl;
  42.  
  43.     return 0;
  44. }
Success #stdin #stdout 0.01s 5300KB
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stdin
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Standard input is empty
stdout
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Original array: 4 1 100 10 0 
Sorted array: 0 1 100 10 4
https://ideone.com/f7dTix
language:
C++14 (gcc 8.3)
created:
30 days ago
visibility:
public

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