Simple

Write a c program that ask the user to input $3$ integers then a function to calculate their sum and average.

Write a c program that uses the math.h library to perform the following equation: $a=b^{{?}^{{?}^{?}}}4**7^{{?}^{?}}(\frac{1}{2}).$

Write a c program that has $4$ functions: add, subtract, multiply and divide. The program will ask the user to input two numbers then choose which operation to perform.

Middle

Write a program that reads ten integer values from the keyboard and stores them in an array. Then program should call functions to do the following:

a$)$ Print only all the elements of the array.

b$)$ Search for the minimum value and exchange locations between the minimum value and the first value in the array.

Example:

Input: arr$[]=\{10,9,8,7,6,1,2,3,4,4\}$

Output: arr$[]=\{1,9,8,7,6,10,2,3,4,4\}$

Hard

Write program that implement the following equation$($using recursive function$)$

$Y={\displaystyle \underset{k=0}{\overset{n}{}}}{7}^K$