NPTEL Programming, Data Structures And Algorithms Using Python (Week 4 Quiz Assignment) 2024

NPTEL Week 4 Quiz

1. Consider the following Python function.

def mystery(l, v):
    if len(l) == 0:
        return v
    else:
        return mystery(l[:-1], l[-1] + v)
        

What does mystery([22,14,19,65,82,55],1) return?

Answer:

2. What is the value of triples after the following assignment?

triples = [(x, y, z) for x in range(2, 4) for y in range(2, 5) for z in range(5, 7) if 2*x*y > 3*z]
        

Answer:

3. Consider the following dictionary.

runs = {"Test": {"Rahul": [90, 14, 35], "Kohli": [3, 103, 73, 42], "Pujara": [53, 15, 133, 8]},
        "ODI": {"Sharma": [37, 99], "Kohli": [63, 47]}}
        

Which of the following statements does not generate an error?

• runs["ODI"]["Rahul"].append([74])
• runs["ODI"]["Rahul"].extend([74])
• runs["ODI"]["Rahul"][0] = 74
• runs["ODI"]["Rahul"] = [74]

4. Assume that inventory has been initialized as an empty dictionary:

inventory = {}
        

Which of the following generates an error?

• inventory["Amul"] = ["Mystic Mocha", 55]
• inventory["Amul, Mystic Mocha"] = 55
• inventory[["Amul", "Mystic Mocha"]] = 55
• inventory[("Amul", "Mystic Mocha")] = 55

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