{ "data": { "question": { "questionId": "719", "questionFrontendId": "719", "boundTopicId": null, "title": "Find K-th Smallest Pair Distance", "titleSlug": "find-k-th-smallest-pair-distance", "content": "

The distance of a pair of integers a and b is defined as the absolute difference between a and b.

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Given an integer array nums and an integer k, return the kth smallest distance among all the pairs nums[i] and nums[j] where 0 <= i < j < nums.length.

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Example 1:

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\nInput: nums = [1,3,1], k = 1\nOutput: 0\nExplanation: Here are all the pairs:\n(1,3) -> 2\n(1,1) -> 0\n(3,1) -> 2\nThen the 1st smallest distance pair is (1,1), and its distance is 0.\n
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Example 2:

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\nInput: nums = [1,1,1], k = 2\nOutput: 0\n
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Example 3:

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\nInput: nums = [1,6,1], k = 3\nOutput: 5\n
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Constraints:

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

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Your code is compiled with level two optimization (-O2). AddressSanitizer is also enabled to help detect out-of-bounds and use-after-free bugs.

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Most standard library headers are already included automatically for your convenience.

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OpenJDK 17. Java 8 features such as lambda expressions and stream API can be used.

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Most standard library headers are already included automatically for your convenience.

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Includes Pair class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.

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Python 2.7.12.

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C# 10 with .NET 6 runtime

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Node.js 16.13.2.

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Swift 5.5.2.

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Go 1.21

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Python 3.10.

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Kotlin 1.9.0.

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