Package g1601_1700.s1611_minimum_one_bit_operations_to_make_integers_zero

Class Solution

java.lang.Object
g1601_1700.s1611_minimum_one_bit_operations_to_make_integers_zero.Solution
public class Solution extends java.lang.Object
1611 - Minimum One Bit Operations to Make Integers Zero.

Hard

Given an integer n, you must transform it into 0 using the following operations any number of times:

  • Change the rightmost (0th) bit in the binary representation of n.
  • Change the ith bit in the binary representation of n if the (i-1)th bit is set to 1 and the (i-2)th through 0th bits are set to 0.

Return the minimum number of operations to transform n into 0.

Example 1:

Input: n = 3

Output: 2

Explanation: The binary representation of 3 is “11”.

“11” -> “01” with the 2nd operation since the 0th bit is 1.

“01” -> “00” with the 1st operation.

Example 2:

Input: n = 6

Output: 4

Explanation: The binary representation of 6 is “110”.

“110” -> “010” with the 2nd operation since the 1st bit is 1 and 0th through 0th bits are 0.

“010” -> “011” with the 1st operation.

“011” -> “001” with the 2nd operation since the 0th bit is 1.

“001” -> “000” with the 1st operation.

Constraints:

  • 0 <= n <= 109

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    minimumOneBitOperations(int n)
     

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • minimumOneBitOperations

      public int minimumOneBitOperations(int n)