1728. Cat and Mouse II

https://leetcode.com/problems/cat-and-mouse-ii

Description

A game is played by a cat and a mouse named Cat and Mouse.

The environment is represented by a grid of size rows x cols, where each element is a wall, floor, player (Cat, Mouse), or food.

  • Players are represented by the characters 'C'(Cat),'M'(Mouse).

  • Floors are represented by the character '.' and can be walked on.

  • Walls are represented by the character '#' and cannot be walked on.

  • Food is represented by the character 'F' and can be walked on.

  • There is only one of each character 'C', 'M', and 'F' in grid.

Mouse and Cat play according to the following rules:

  • Mouse moves first, then they take turns to move.

  • During each turn, Cat and Mouse can jump in one of the four directions (left, right, up, down). They cannot jump over the wall nor outside of the grid.

  • catJump, mouseJump are the maximum lengths Cat and Mouse can jump at a time, respectively. Cat and Mouse can jump less than the maximum length.

  • Staying in the same position is allowed.

  • Mouse can jump over Cat.

The game can end in 4 ways:

  • If Cat occupies the same position as Mouse, Cat wins.

  • If Cat reaches the food first, Cat wins.

  • If Mouse reaches the food first, Mouse wins.

  • If Mouse cannot get to the food within 1000 turns, Cat wins.

Given a rows x cols matrix grid and two integers catJump and mouseJump, return true if Mouse can win the game if both Cat and Mouse play optimally, otherwise return false.

Example 1:

**Input:** grid = ["####F","#C...","M...."], catJump = 1, mouseJump = 2
**Output:** true
**Explanation:** Cat cannot catch Mouse on its turn nor can it get the food before Mouse.

Example 2:

**Input:** grid = ["M.C...F"], catJump = 1, mouseJump = 4
**Output:** true

Example 3:

**Input:** grid = ["M.C...F"], catJump = 1, mouseJump = 3
**Output:** false

Example 4:

**Input:** grid = ["C...#","...#F","....#","M...."], catJump = 2, mouseJump = 5
**Output:** false

Example 5:

**Input:** grid = [".M...","..#..","#..#.","C#.#.","...#F"], catJump = 3, mouseJump = 1
**Output:** true

Constraints:

  • rows == grid.length

  • cols = grid[i].length

  • 1 <= rows, cols <= 8

  • grid[i][j] consist only of characters 'C', 'M', 'F', '.', and '#'.

  • There is only one of each character 'C', 'M', and 'F' in grid.

  • 1 <= catJump, mouseJump <= 8

ac

Last updated