1197. Minimum Knight Moves

https://leetcode.com/problems/minimum-knight-moves

Description

In an infinite chess board with coordinates from -infinity to +infinity, you have a knight at square [0, 0].

A knight has 8 possible moves it can make, as illustrated below. Each move is two squares in a cardinal direction, then one square in an orthogonal direction.

Return the minimum number of steps needed to move the knight to the square [x, y]. It is guaranteed the answer exists.

Example 1:

**Input:** x = 2, y = 1
**Output:** 1
**Explanation:** [0, 0] → [2, 1]

Example 2:

**Input:** x = 5, y = 5
**Output:** 4
**Explanation:** [0, 0] → [2, 1] → [4, 2] → [3, 4] → [5, 5]

Constraints:

• -300 <= x, y <= 300

• 0 <= |x| + |y| <= 300

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