Practice Build Array from Permutation
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
Given a zero-based permutation nums (0-indexed), build an array ans of the same length where ans[i] = nums[nums[i]] for each 0 <= i < nums.length and return it. A zero-based permutation nums is an array of distinct integers from 0 to nums.length - 1 (inclusive). Example 1: Example 2: Constraints: Follow-up: Can you solve it without using an extra space (i.e., O(1) memory)?
Source: Build Array from Permutation on LeetCode. Use the original task for its coding environment and submissions.
Examples
# Example 1
nums = [0,2,1,5,3,4]
[0,1,2,4,5,3]
# Example 2
nums = [5,0,1,2,3,4]
[4,5,0,1,2,3]
Constraints
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