1. Write a complete program with comments and sample run Ask the user for a numb

Question

1.

Write a complete program with comments and sample run

Ask the user for a number . Your program will read and compute the average for that many (numbers) integers, display the result. Your average has to be formatted to one decimal point. You have to use a for loop and have only one variable for reading the integers.

Example: Please enter how many numbers you have

8

Please enter 8 numbers to calculate the average

1 2 3 4 5 6 7 8

Your average is 18.0

2.

You will write a complete program to simulate multiplication through addition. Your program will ask for two numbers (they may have decimal points) separated by *. Then your program will use loop (You have to use loop) to create a product by adding the first number . Then it will repeat the program if the user wants to continue. Your first number may be integer, decimal, or negative number. Your second number will only be positive integer- You have to check the second number to be sure it not negative but you do not need to check to see if it has decimal - We will assume it it integer

Ex:

User Input

9*3 (it has to be in this format)

Your program will do 9+9+9

Then displays 27

Then it asks the user if s/he wants to continue

Explanation / Answer

Codes written in Python. ( Language not specified, hence )

Code 1:

from __future__ import division
import sys

num = int(raw_input("Please enter how many numbers you have "))
inp = raw_input("Enter the numbers ")

inpa = inp.split()

if len(inpa) != int(num):
print "Please enter the correct number of inputs"
sys.exit()

sum = 0

for i in inpa:
sum = sum + float(i)

print "The average is %.1f" % (sum/num)



Code 2)

from __future__ import division
import sys

def mulfunc():

inp = raw_input("Please enter the input")
  inpa = inp.split("*")

  if len(inpa) != 2: # check if the input format is right
      print("Input not sane")
      sys.exit()

  mtimes = inpa[1]
  mply = inpa[0]

  smul = 0

  for i in range(int(mtimes)):
      smul = smul + float(mply)

  print "The answer is %.1f" % smul
  ans = raw_input("Do you want to continue? y/n")

  if ans == "y":
      mulfunc()
  else:
      print "Exiting..."
      sys.exit()

mulfunc()

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