Problem 53: Selecting Array Elements at Specific Intervals

Test Case Number

numbers

step

return

[1, 2, 3, 4]

[1, 3]

[1, 2, 3, 4]

[1]

Problem

Given an array numbers consisting of integer elements and a natural number step representing an interval, write a function solution that selects elements from numbers starting at index 0 and skipping step elements at a time, returning the resulting array.

Constraints

Each element in numbers is an integer with an absolute value not exceeding 500.
numbers is not empty, and its length does not exceed 100.
step does not exceed the length of numbers.

Test Case

Test Case Number	numbers	step	return
1	[1, 2, 3, 4]	1	[1, 2, 3, 4]
2	[1, 2, 3, 4]	2	[1, 3]
3	[1, 2, 3, 4]	4	[1]

Explanation for Test Case 1

Starting from index 0 and skipping by 1, the selected elements are [1, 2, 3, 4].

Explanation for Test Case 2

Starting from index 0 and skipping by 2, the selected elements are [1, 3].

Explanation for Test Case 3

Starting from index 0 and skipping by 4, the selected element is [1].