COMPUTER SCIENCE AND ENGINEERING
MACHINE LEARNING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Python follows ____ indexing.
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One
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Two
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Zero
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Five
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Explanation:
Detailed explanation-1: -Python uses zero-based indexing. That means, the first element(value ‘red’) has an index 0, the second(value ‘green’) has index 1, and so on.
Detailed explanation-2: -python lists are 0-indexed. So the first element is 0, second is 1, so on. So if the there are n elements in a list, the last element is n-1. Remember this!
Detailed explanation-3: -For negative indexing, to display the 1st element to last element in steps of 1 in reverse order, we use the [::-1].
Detailed explanation-4: -Short Answer An array is a pointer, and the index is used as the offset. The first element of the array is precisely at the pointer’s memory location; therefore, the offset is zero.
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