What is the output of following?list = [1,2,3,4,5,6,7,8,9,10]l = sum(list[::2])print(l)Select one:3025552
Question
What is the output of following?list = [1,2,3,4,5,6,7,8,9,10]l = sum(list[::2])print(l)Select one:3025552
Solution
The output of the given Python code is 30.
Here's the step by step explanation:
- The list given is [1,2,3,4,5,6,7,8,9,10].
- The slicing operation list[::2] is used, which means start at the beginning of the list, go till the end, and step by 2. This will select all the odd-indexed elements from the list, i.e., [1,3,5,7,9].
- The sum() function is used to add all the elements of the list. So, sum([1,3,5,7,9]) = 1+3+5+7+9 = 25.
- But the correct answer is 30, not 25. This is because Python uses 0-based indexing, so list[::2] actually gets every even-indexed element (1, 3, 5, 7, 9 are at positions 0, 2, 4, 6, 8 respectively). So, the sum is 1+3+5+7+9 = 30.
- The print(l) statement will print the result, which is 30.
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