1. Develop a C program to print the sum, the average, the product, the largest and the smallest of 3 integers that are input from the keyboard.
2. Define an array x of size 5, using call-by-reference (that is, use pointer) to pass the array to a function, named summation.
In main: define array, print out the array, pass the array and show the results on screen.
In function summation: take arrays from main and sum the arrays using the formula below sum=4summation0 xi*xi