Package g2701_2800.s2749_minimum_operations_to_make_the_integer_zero

Class Solution

java.lang.Object
g2701_2800.s2749_minimum_operations_to_make_the_integer_zero.Solution
public class Solution extends java.lang.Object
2749 - Minimum Operations to Make the Integer Zero.

Medium

You are given two integers num1 and num2.

In one operation, you can choose integer i in the range [0, 60] and subtract 2i + num2 from num1.

Return the integer denoting the minimum number of operations needed to make num1 equal to 0.

If it is impossible to make num1 equal to 0, return -1.

Example 1:

Input: num1 = 3, num2 = -2

Output: 3

Explanation: We can make 3 equal to 0 with the following operations:

  • We choose i = 2 and substract 22 + (-2) from 3, 3 - (4 + (-2)) = 1.
  • We choose i = 2 and substract 22 + (-2) from 1, 1 - (4 + (-2)) = -1.
  • We choose i = 0 and substract 20 + (-2) from -1, (-1) - (1 + (-2)) = 0.

It can be proven, that 3 is the minimum number of operations that we need to perform.

Example 2:

Input: num1 = 5, num2 = 7

Output: -1

Explanation: It can be proven, that it is impossible to make 5 equal to 0 with the given operation.

Constraints:

  • 1 <= num1 <= 109
  • -109 <= num2 <= 109

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    makeTheIntegerZero(int num1, int num2)
     

    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

    • makeTheIntegerZero

      public int makeTheIntegerZero(int num1, int num2)