Find Indexes of Target Number

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Problem

A Google Search preprocessing step needs to identify every position where a specified token appears in a sequence of encoded values. Given an integer array and a target integer, return all zero-based indexes whose values equal the target.

You must preserve the indexes in ascending order. If the target does not appear, return an empty list.

Formal Specification

Implement find_indices(nums, target):

Input: nums, a list of integers, and target, an integer.
Output: A list of integers containing every index i such that nums[i] == target.
The returned indexes must be in the same left-to-right order as they appear in nums.
Do not modify nums.

Constraints

0 <= len(nums) <= 10^5
-10^9 <= nums[i] <= 10^9 when nums is non-empty
-10^9 <= target <= 10^9
Indexes are zero-based
The input array must not be modified

Function Signature

def find_indices(nums, target):

Your solutionPython 3

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