Practice Apply Operations to an Array
Read the task, work through the examples, and check your approach against the constraints. Use the original LeetCode task for coding and submissions.
Problem Statement
Visit indices i from 0 through nums.length - 2 in order. If nums[i] equals nums[i + 1], double nums[i] and set nums[i + 1] to zero; otherwise do nothing. Later steps see earlier changes. Finally move all zeros to the end while retaining the order of nonzero values, and return the array.
Source: Apply Operations to an Array on LeetCode. Use the original task for its coding environment and submissions.
Examples
# Example 1
Input
nums = [1,2,2,1,1,0]
Output
[1,4,2,0,0,0]
# Example 2
Input
nums = [0,1]
Output
[1,0]
Constraints
2 <= nums.length <= 2000
0 <= nums[i] <= 1000
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