Package g1701_1800.s1780_check_if_number_is_a_sum_of_powers_of_three

Class Solution

  • All Implemented Interfaces:
    
public final class Solution

    1780 - Check if Number is a Sum of Powers of Three.

    Medium

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

    An integer y is a power of three if there exists an integer x such that <code>y == 3<sup>x</sup></code>.

    Example 1:

    Input: n = 12

    Output: true

    Explanation: 12 = 3<sup>1</sup> + 3<sup>2</sup>

    Example 2:

    Input: n = 91

    Output: true

    Explanation: 91 = 3<sup>0</sup> + 3<sup>2</sup> + 3<sup>4</sup>

    Example 3:

    Input: n = 21

    Output: false

    Constraints:

    • <code>1 <= n <= 10<sup>7</sup></code>

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description

    • Field Summary

      Fields 
      Modifier and Type Field Description

    • Constructor Summary

      Constructors 
      Constructor Description
      Solution()

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description

    • Method Summary

      Modifier and Type Method Description
      final Boolean checkPowersOfThree(Integer n)

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait