{ "data": { "question": { "questionId": "1889", "questionFrontendId": "1780", "boundTopicId": null, "title": "Check if Number is a Sum of Powers of Three", "titleSlug": "check-if-number-is-a-sum-of-powers-of-three", "content": "

Given an integer n, return true if it is possible to represent n as the sum of distinct powers of three. Otherwise, return false.

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An integer y is a power of three if there exists an integer x such that y == 3x.

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Example 1:

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\nInput: n = 12\nOutput: true\nExplanation: 12 = 31 + 32\n
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Example 2:

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\nInput: n = 91\nOutput: true\nExplanation: 91 = 30 + 32 + 34\n
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Example 3:

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\nInput: n = 21\nOutput: false\n
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Constraints:

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