Question

Please use Python to solve this problem:

Write a loop that reads positive integers from standard input and that terminates when it reads an integer that is not positive. After the loop terminates, it prints out, on a single line and separated by a single space, the sum of all the even integers read and the sum of all the odd integers read.

Answer 1

# Initialize the variables oddSum and evenSum to 0.

oddSum = 0

evenSum = 0

# Start the while loop till the condition is True

# Prompt the user to enter the positive number till

# a negative number is read.

while(True):

  

n = int(input("Enter positive number: "))

# If the user input is less than 0, that is

# negative, break.

if(n<0):

  

  break

else:

  

  # If the number entered by user is positive and it

  

  # is divisible by 2 completely, it means the number

  

  # is even, so add the positive even numbers and

  

  # store the result in variable evenSum.

  

  if(n%2==0):

    

    evenSum += n

    

  else:

    

    # If the number entered by user is positive and it

    

    # is not divisible by 2 completely, it means the

    

    # number is odd so add the positive odd numbers

    

    # and store the result in variable oddSum.

    

    oddSum += n

    

    # Print the sum of even numbers.  

    

print("Sum of evens:",evenSum)

# Print the sum of odd numbers.

print("Sum of odds:",oddSum)