Leetcode Problem 2295. Replace Elements in an Array

2295. Replace Elements in an Array

Leetcode Solutions

HashMap Approach for Array Transformation

  1. Initialize a HashMap to store the element-to-index mappings for the nums array.
  2. Iterate over the nums array and populate the HashMap with each element as the key and its index as the value.
  3. Iterate over the operations array. a. For each operation, retrieve the index of the element to be replaced from the HashMap. b. Replace the element at the retrieved index in the nums array with the new element. c. Update the HashMap by setting the new element to the same index.
  4. Return the modified nums array after applying all operations.
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Direct Replacement Approach

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