remove_duplicates.cpp

//
// CPP program to remove duplicate character
// from character array and print in sorted
// order
//
// The All ▲lgorithms Project
//
// https://allalgorithms.com/strings
// https://github.com/allalgorithms/cpp
//
// Contributed by: Tushar Kanakagiri
// Github: @tusharkanakagiri
//
#include <iostream>
using namespace std;

char *removeDuplicate(char str[], int n)
{
   // Used as index in the modified string
   int index = 0;

   // Traverse through all characters
   for (int i = 0; i < n; i++)
   {

      // Check if str[i] is present before it
      int j;
      for (j = 0; j < i; j++)
         if (str[i] == str[j])
            break;

      // If not present, then add it to
      // result.
      if (j == i)
         str[index++] = str[i];
   }

   return str;
}

// Driver code
int main()
{
   char str[] = ""; //Enter string here
   int n = sizeof(str) / sizeof(str[0]);
   cout << removeDuplicate(str, n);
   return 0;
}