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Programming in Python · End Term · 21 Dec 2025 · September 2025 term

Question 15: You are inside the lift of a building. There are 8 level…

Question 15

+2 marksOne correct option

You are inside the lift of a building. There are 8 levels in the building: [−3,−2,−1,0,1,2,3,4] The number 0 is the ground floor. Positive numbers correspond to floors above the ground floor, negative numbers correspond to basement levels below the ground floor. The lift has only two buttons. The button U will take you one level up and the button D will take you one level down. You make a sequence of presses. # presses contains the sequence of button presses made by you presses = 'UDDUUUDDUDU' floor = 0 index = 0 while index < len(presses): char = presses[index] if char == 'U': floor += 1 elif char == 'D': floor -= 1 if floor == 2: print(index + 1) break index += 1 Based on the above data answer the subsequent questions.

What is the given code snippet printing?

  1. A

    It prints the number of button presses after which you reach the floor 2 for the first time.

  2. B

    It prints the number of times you cross the floor 2.

  3. C

    It prints the final floor level after all the button presses.

  4. D

    None of these.

Show answer

Correct answer

  • A

    It prints the number of button presses after which you reach the floor 2 for the first time.

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Question 15 of 20 in the IIT Madras BS Programming in Python (Python) End Term paper sat on 21 Dec 2025, in the September 2025 term (Intro to Python 18 Dec 25). It carries 2 marks.

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