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.
\n
Example 1:
\n\n\nInput: num1 = 3, num2 = -2\nOutput: 3\nExplanation: We can make 3 equal to 0 with the following operations:\n- We choose i = 2 and substract 22 + (-2) from 3, 3 - (4 + (-2)) = 1.\n- We choose i = 2 and substract 22 + (-2) from 1, 1 - (4 + (-2)) = -1.\n- We choose i = 0 and substract 20 + (-2) from -1, (-1) - (1 + (-2)) = 0.\nIt can be proven, that 3 is the minimum number of operations that we need to perform.\n\n\n
Example 2:
\n\n\nInput: num1 = 5, num2 = 7\nOutput: -1\nExplanation: It can be proven, that it is impossible to make 5 equal to 0 with the given operation.\n\n\n
\n
Constraints:
\n\n1 <= num1 <= 109-109 <= num2 <= 109给你两个整数：num1 和 num2 。
在一步操作中，你需要从范围 [0, 60] 中选出一个整数 i ，并从 num1 减去 2i + num2 。
请你计算，要想使 num1 等于 0 需要执行的最少操作数，并以整数形式返回。
如果无法使 num1 等于 0 ，返回 -1 。
\n\n
示例 1：
\n\n\n输入：num1 = 3, num2 = -2\n输出：3\n解释：可以执行下述步骤使 3 等于 0 ：\n- 选择 i = 2 ，并从 3 减去 22 + (-2) ，num1 = 3 - (4 + (-2)) = 1 。\n- 选择 i = 2 ，并从 1 减去 22 + (-2) ，num1 = 1 - (4 + (-2)) = -1 。\n- 选择 i = 0 ，并从 -1 减去 20 + (-2) ，num1 = (-1) - (1 + (-2)) = 0 。\n可以证明 3 是需要执行的最少操作数。\n\n\n
示例 2：
\n\n\n输入：num1 = 5, num2 = 7\n输出：-1\n解释：可以证明，执行操作无法使 5 等于 0 。\n\n\n
\n\n
提示：
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