At which line number is there a function invocation (function call) of a user-defined function?

Consider the piece of code:

for (i = 1, sum = 0; i <= 5; i++) 
    sum += i * i;

A line such as #define MAX 4 that appears in a C program is:

while (numb != 0) { }

Write a program that initialises an array of 5 integers and stores values in them using a for loop. 

• Modify the program from the question above to now ask the user to enter N integers using the keyboard and store them in a one-dimensional array of type integers. Also, print the square of each array element using a for loop. You can take the value of N from the user ensuring that 0 < N <= 100. 

Write a function called isFound() that takes a list of N integers as input from the user (N is also user input), and an integer X to search for in the list. After storing the list in an array, the program counts and prints the frequency of occurrence of X in the list. 

Execute the program executable by typing /home/sharing/cc/4-1 at the command prompt. Write a program to print such a pattern, which is generalisable for any number of lines. 

Write a function called isPalindrome() that takes an integer and checks if it is a “palindrome” or not. For instance, the numbers 747, 4, and 12421 are palindromes, while 52, 124, and 766 are not palindromes. If the number is a palindrome the function should return 1, otherwise it should return 0.