25. Array Replace


Task

Given an array of integers, replace all the occurrences of elemToReplace with substitutionElem.

Example

For inputArray = [1, 2, 1], elemToReplace = 1, and substitutionElem = 3, the output should be
arrayReplace(inputArray, elemToReplace, substitutionElem) = [3, 2, 3].

Input/Output

  • [execution time limit]
    4 seconds (py3)

  • [input] array.integer inputArray
    Guaranteed constraints: 0 ≤ inputArray.length ≤ 104, 0 ≤ inputArray[i] ≤ 109.

  • [input] integer elemToReplace
    Guaranteed constraints: 0 ≤ elemToReplace ≤ 109.

  • [input] integer substitutionElem
    Guaranteed constraints: 0 ≤ substitutionElem ≤ 109.

  • [output] array.integer

My Solution

def arrayReplace(inputArray, elemToReplace, substitutionElem):
    return [substitutionElem if i == elemToReplace else i for i in inputArray]