Write a function, removeAll, that takes three parameters: an array of integers, the number of elements in the array, and an integer (say, removeItem). The function should find and delete all of the occurrences of removeItem in the array. If the value does not exist or the array is empty, output an appropriate message. (Note that after deleting the element, the number of elements in the array is reduced.) Assume that the array is unsorted.

Please use C as the programing language.

use c code to develop the condition and function for the following items and then redevelop the code by adding the function as shown below, the original code has been given below. Hint: a)the function need to be made and develop  and than add to the code 1. print Reverse 2. void reverseIt 3. void search Array 4.void search array 5. void array copy and void arrayDiff) b) the answer must be include and output and c code void printReverse(int array[], size); //prints the array reverselyvoid reverseIt(int array[], size); //reverses an arrayvoid searchArray(int array[], int size, int num);// returns the first index of the array whose value is num.//returns -1 if the number was not found in the array// optional for lab 6:void searchnArray(int array[], int size, int num, int n);// returns the nth index of the array whose value is num.//returns -1 if the number was not found in the arrayvoid arrayCopy (int arDest[], int arSource[], int commonSize);// copies cells from arSourc to arDestvoid…

Write a function named "changeCase" that takes an array of characters terminating by NULL character (C-string) and a boolean flag of toUpper. If the toUpper flag is true, it will go through the array and convert all lowercase characters to uppercase. Otherwise, it will convert all uppercase to lowercase. For example, if the array is {'H', 'e', 'l', 'l', 'o', '\0'} and the flag is true, then the array will become {'H', 'E', 'L', 'L', 'O', '\0'}. And if the flag is false, the array will become{'h', 'e', 'l', 'l', 'o', '\0'}