Leetcode Problem 2248. Intersection of Multiple Arrays

2248. Intersection of Multiple Arrays

Leetcode Solutions

Frequency Counting Approach

  1. Initialize a frequency array freq of size 1001 with all elements set to 0.
  2. Iterate over each array arr in nums.
    • For each number num in arr, increment freq[num] by 1.
  3. Initialize an empty list result.
  4. Iterate over the freq array from index 1 to 1000.
    • If freq[i] is equal to the length of nums, append i to result.
  5. Return the result list.
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Set Intersection Approach

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