{ "data": { "question": { "questionId": "2610", "questionFrontendId": "2523", "boundTopicId": null, "title": "Closest Prime Numbers in Range", "titleSlug": "closest-prime-numbers-in-range", "content": "

Given two positive integers left and right, find the two integers num1 and num2 such that:

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Return the positive integer array ans = [nums1, nums2]. If there are multiple pairs satisfying these conditions, return the one with the minimum nums1 value or [-1, -1] if such numbers do not exist.

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A number greater than 1 is called prime if it is only divisible by 1 and itself.

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Example 1:

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\nInput: left = 10, right = 19\nOutput: [11,13]\nExplanation: The prime numbers between 10 and 19 are 11, 13, 17, and 19.\nThe closest gap between any pair is 2, which can be achieved by [11,13] or [17,19].\nSince 11 is smaller than 17, we return the first pair.\n
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Example 2:

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\nInput: left = 4, right = 6\nOutput: [-1,-1]\nExplanation: There exists only one prime number in the given range, so the conditions cannot be satisfied.\n
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Constraints:

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Compiled with clang 11 using the latest C++ 20 standard.

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C# 10 with .NET 6 runtime

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