Question

question # 3
multiple choice
what is the output of the following program?
numa = 2
numb = 3
while numa > 0:
numa = numa - 1
while numb > 0:
numb = numb - 1
print (numa, numb)

Explanation:

Step1: Analyze outer - loop initial condition

The outer while loop has the condition numA > 0. Initially, numA = 2.

Step2: First iteration of outer - loop

In the first iteration of the outer loop, numA becomes numA=numA - 1=2 - 1 = 1. Then the inner while loop starts. The inner while loop has the condition numB > 0 with numB = 3 initially. In the inner - loop, numB is decremented in each iteration. After three iterations of the inner loop, numB becomes 0. Then print(numA, numB) prints 1, 0.

Step3: Second iteration of outer - loop

In the second iteration of the outer loop, numA becomes numA=numA - 1=1 - 1 = 0. Now the outer - loop condition numA > 0 fails and the program terminates.

Answer:

The output is 1, 0