How to remove duplicate elements from array | C program to remove duplicates from array
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Steps of this program:
1. Include the necessary header file for standard input-output operations.
2. Define the main function:
- Declare integer variables 'size', 'i', 'j', 'k', and 'arr[100]'.
- Prompt the user to enter the size of the array and read the input using scanf().
- Prompt the user to enter the elements of the array and read the input into the array using a loop and scanf().
3. Remove duplicate elements:
- Use nested loops to compare each element with the rest of the elements in the array.
- If a duplicate element is found, move the elements to the left to overwrite it.
- Decrement the size of the array to exclude the duplicate elements.
4. Display the array without duplicate elements:
- Print a message to indicate that duplicate elements are removed.
- Print the array without duplicate elements using a loop.
5. Return 0 to indicate successful execution of the program.
Explanation of this program:
- This program removes duplicate elements from an array entered by the user.
- It declares integer variables 'size', 'i', 'j', 'k', and 'arr[100]' in the main function.
- The user is prompted to enter the size of the array, and the input is read using scanf().
- The user is prompted to enter the elements of the array, and the input is read into the array using a loop and scanf().
- Nested loops are used to compare each element with the rest of the elements in the array.
- If a duplicate element is found, the elements to the right of it are shifted to the left to overwrite it.
- The size of the array is decremented to exclude the duplicate elements.
- After removing duplicates, the program prints the array without duplicate elements.
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