{ "data": { "question": { "questionId": "3420", "questionFrontendId": "3159", "boundTopicId": null, "title": "Find Occurrences of an Element in an Array", "titleSlug": "find-occurrences-of-an-element-in-an-array", "content": "

You are given an integer array nums, an integer array queries, and an integer x.

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For each queries[i], you need to find the index of the queries[i]th occurrence of x in the nums array. If there are fewer than queries[i] occurrences of x, the answer should be -1 for that query.

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Return an integer array answer containing the answers to all queries.

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Example 1:

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Input: nums = [1,3,1,7], queries = [1,3,2,4], x = 1

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Output: [0,-1,2,-1]

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Explanation:

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Example 2:

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Input: nums = [1,2,3], queries = [10], x = 5

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Output: [-1]

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Explanation:

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Constraints:

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