We are given non-negative integers nums[i] which are written on a chalkboard.  Alice and Bob take turns erasing exactly one number from the chalkboard, with Alice starting first.  If erasing a number causes the bitwise XOR of all the elements of the…

黑板游戏: We are given non-negative integers nums[i] which are written on a chalkboard. Alice and Bob take turns erasing exactly one number from the chalkboard, with Alice starting first. If erasing a number causes the bitwise XOR of all the elements of…

810. 黑板异或游戏 一个黑板上写着一个非负整数数组 nums[i] .小红和小明轮流从黑板上擦掉一个数字,小红先手.如果擦除一个数字后,剩余的所有数字按位异或运算得出的结果等于 0 的话,当前玩家游戏失败. (另外,如果只剩一个数字,按位异或运算得到它本身:如果无数字剩余,按位异或运算结果为 0.) 换种说法就是,轮到某个玩家时,如果当前黑板上所有数字按位异或运算结果等于 0,这个玩家获胜. 假设两个玩家每步都使用最优解,当且仅当小红获胜时返回 true. 示例: 输入: nums = [1…

题目链接: 1661 黑板上的游戏 Alice和Bob在黑板上玩一个游戏,黑板上写了n个正整数a1, a2, ..., an,游戏的规则是这样的:1. Alice占有先手主动权.2. 每个人可以选取一个大于1的数字擦去,并写上一个更小的数字,数字必须是整数,然后由对方进行下一次操作.3. 如果擦去的数字是 x (x > 1) ,则写上的数字不能比 x/k 小,但是要比 x 小.这里的除法为有理数除法.4. 不可以擦去任何一个数字 1 ,如果当前无法找到一个数字进行操作,则当前方输.假设Alice…

We are given non-negative integers nums[i] which are written on a chalkboard.  Alice and Bob take turns erasing exactly one number from the chalkboard, with Alice starting first.  If erasing a number causes the bitwise XOR of all the elements of the…

We are given non-negative integers nums[i] which are written on a chalkboard.  Alice and Bob take turns erasing exactly one number from the chalkboard, with Alice starting first.  If erasing a number causes the bitwise XOR of all the elements of the…

Given a non-empty array of numbers, a0, a1, a2, … , an-1, where 0 ≤ ai < 231. Find the maximum result of ai XOR aj, where 0 ≤ i, j < n. Could you do this in O(n) runtime? Example: Input: [3, 10, 5, 25, 2, 8] Output: 28 Explanation: The maximum resul…

Design a Snake game that is played on a device with screen size = width x height. Play the game online if you are not familiar with the game. The snake is initially positioned at the top left corner (0,0) with length = 1 unit. You are given a list of…

Design a Tic-tac-toe game that is played between two players on a n x n grid. You may assume the following rules: A move is guaranteed to be valid and is placed on an empty block.Once a winning condition is reached, no more moves is allowed.A player…

Given a non-empty array of numbers, a0, a1, a2, - , an-1, where 0 ≤ ai < 231. Find the maximum result of ai XOR aj, where 0 ≤ i, j < n. Could you do this in O(n) runtime? Example: Input: [3, 10, 5, 25, 2, 8] Output: 28 Explanation: The maximum resul…