{ "data": { "question": { "questionId": "279", "questionFrontendId": "279", "boundTopicId": null, "title": "Perfect Squares", "titleSlug": "perfect-squares", "content": "

Given an integer n, return the least number of perfect square numbers that sum to n.

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A perfect square is an integer that is the square of an integer; in other words, it is the product of some integer with itself. For example, 1, 4, 9, and 16 are perfect squares while 3 and 11 are not.

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Example 1:

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\nInput: n = 12\nOutput: 3\nExplanation: 12 = 4 + 4 + 4.\n
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Example 2:

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\nInput: n = 13\nOutput: 2\nExplanation: 13 = 4 + 9.\n
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Constraints:

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

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Python 2.7.12.

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C# 10 with .NET 6 runtime

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