Check out example codes for "remove repeting elements in an array c++". It will help you in understanding the concepts better.

Code Example 1

// Simple C++ program to remove duplicates  #include<iostream>  using namespace std;     // Function to remove duplicate elements  // This function returns new size of modified  // array.  int removeDuplicates(int arr[], int n)  {      // Return, if array is empty      // or contains a single element      if (n==0 || n==1)          return n;         int temp[n];         // Start traversing elements      int j = 0;      for (int i=0; i<n-1; i++)             // If current element is not equal          // to next element then store that          // current element          if (arr[i] != arr[i+1])              temp[j++] = arr[i];         // Store the last element as whether      // it is unique or repeated, it hasn't      // stored previously      temp[j++] = arr[n-1];         // Modify original array      for (int i=0; i<j; i++)          arr[i] = temp[i];         return j;  }     // Driver code  int main()  {      int arr[] = {1, 2, 2, 3, 4, 4, 4, 5, 5};      int n = sizeof(arr) / sizeof(arr[0]);         // removeDuplicates() returns new size of      // array.      n = removeDuplicates(arr, n);         // Print updated array      for (int i=0; i<n; i++)         cout << arr[i] << " ";         return 0;  }

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