{ "data": { "question": { "questionId": "593", "questionFrontendId": "593", "boundTopicId": null, "title": "Valid Square", "titleSlug": "valid-square", "content": "

Given the coordinates of four points in 2D space p1, p2, p3 and p4, return true if the four points construct a square.

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The coordinate of a point pi is represented as [xi, yi]. The input is not given in any order.

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A valid square has four equal sides with positive length and four equal angles (90-degree angles).

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Example 1:

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\nInput: p1 = [0,0], p2 = [1,1], p3 = [1,0], p4 = [0,1]\nOutput: true\n
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Example 2:

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\nInput: p1 = [0,0], p2 = [1,1], p3 = [1,0], p4 = [0,12]\nOutput: false\n
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Example 3:

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\nInput: p1 = [1,0], p2 = [-1,0], p3 = [0,1], p4 = [0,-1]\nOutput: true\n
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\n

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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Python 2.7.12.

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For Map/TreeMap data structure, you may use sortedcontainers library.

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Compiled with gcc 8.2 using the gnu11 standard.

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

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C# 10 with .NET 6 runtime

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Node.js 16.13.2.

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Ruby 3.1

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Python 3.10.

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Scala 2.13.7.

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Kotlin 1.9.0.

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Rust 1.58.1

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PHP 8.1.

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TypeScript 5.1.6, Node.js 16.13.2.

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