In the bit model, using theta notation, how long does the following code snippet take to run? Justify your answer. for J = 1 to N do x = 2^J + 2^J end for What is the value of x after the execution of the code snippet. Give an exact answer as a function of N. Justify your answer. x = 0 for J = 1 to N do x = x + 2^J end for How many bits do you need to represent x after the execution of the code snippet