{ "data": { "question": { "questionId": "3203", "questionFrontendId": "2983", "boundTopicId": null, "title": "Palindrome Rearrangement Queries", "titleSlug": "palindrome-rearrangement-queries", "content": "

You are given a 0-indexed string s having an even length n.

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You are also given a 0-indexed 2D integer array, queries, where queries[i] = [ai, bi, ci, di].

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For each query i, you are allowed to perform the following operations:

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For each query, your task is to determine whether it is possible to make s a palindrome by performing the operations.

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Each query is answered independently of the others.

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Return a 0-indexed array answer, where answer[i] == true if it is possible to make s a palindrome by performing operations specified by the ith query, and false otherwise.

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Example 1:

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\nInput: s = "abcabc", queries = [[1,1,3,5],[0,2,5,5]]\nOutput: [true,true]\nExplanation: In this example, there are two queries:\nIn the first query:\n- a0 = 1, b0 = 1, c0 = 3, d0 = 5.\n- So, you are allowed to rearrange s[1:1] => abcabc and s[3:5] => abcabc.\n- To make s a palindrome, s[3:5] can be rearranged to become => abccba.\n- Now, s is a palindrome. So, answer[0] = true.\nIn the second query:\n- a1 = 0, b1 = 2, c1 = 5, d1 = 5.\n- So, you are allowed to rearrange s[0:2] => abcabc and s[5:5] => abcabc.\n- To make s a palindrome, s[0:2] can be rearranged to become => cbaabc.\n- Now, s is a palindrome. So, answer[1] = true.\n
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Example 2:

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\nInput: s = "abbcdecbba", queries = [[0,2,7,9]]\nOutput: [false]\nExplanation: In this example, there is only one query.\na0 = 0, b0 = 2, c0 = 7, d0 = 9.\nSo, you are allowed to rearrange s[0:2] => abbcdecbba and s[7:9] => abbcdecbba.\nIt is not possible to make s a palindrome by rearranging these substrings because s[3:6] is not a palindrome.\nSo, answer[0] = false.
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Example 3:

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\nInput: s = "acbcab", queries = [[1,2,4,5]]\nOutput: [true]\nExplanation: In this example, there is only one query.\na0 = 1, b0 = 2, c0 = 4, d0 = 5.\nSo, you are allowed to rearrange s[1:2] => acbcab and s[4:5] => acbcab.\nTo make s a palindrome s[1:2] can be rearranged to become abccab.\nThen, s[4:5] can be rearranged to become abccba.\nNow, s is a palindrome. So, answer[0] = true.
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Constraints:

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