Array Permutations with Python

Question: Check if two arrays are permutations of each other

Given two unsorted arrays of the same size, write a function that returns true if two arrays are permutations of each other, otherwise false.

Approach: Hash Table

We check if arrays a1 and a2 are permutations of each other by comparing the frequency of their elements. Use dictionaries to count element frequencies and then compare the dictionaries.

Time Complexity: O(N),

Space Complexity: O(M), where M is the total number of unique elements in both arrays.

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