We can calculate the XOR of 2 numbers using the well-known property of XOR, a + b = (a ^ b) + 2 * (a & b) C++ Code – Using XOR & SUM int getXOR(int x, int y) { return (x + y) - 2 * (x & y); } Java Code – Using XOR & SUM public static int getXOR(int ...
https://leetcode.com/problems/maximum-xor-of-two-numbers-in-an-array/discuss/91049/Java-O(n)-solution-using-bit-manipulation-and-HashMap https://leetcode.com/problems/maximum-xor-of-two-numbers-in-an-array/discuss/91064/C%2B%2B-22-ms-beats-99.5-array-partitioning-similar-to-quick-sort L...
node=node[b] path+=b#print i,path,int(i,2),int(path,2)res = max(res,int(i,2)^int(path,2))returnres
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 result is ...
【特别好】【位运算】maximum-xor-of-two-numbers-in-an-array,https://leetcode.com/problems/maximum-xor-of-two-numbers-in-an-array/利用了异或的”自反性“:a^b=c,而a^b^b=a,则c^b=a其他运算定律有:交换律、结合律、分配律。注意:计算使用的
421 Maximum XOR of Two Numbers in an Array 数组中两个数的最大异或值 Description:Given an integer ar...
Can you solve this real interview question? Maximum XOR of Two Numbers in an Array - Given an integer array nums, return the maximum result of nums[i] XOR nums[j], where 0 <= i <= j < n. Example 1: Input: nums = [3,10,5,25,2,8] Output: 28 Explanati
LeetCode(421):数组中两个数的最大异或值 Maximum XOR of Two Numbers in an Array(Java) 2019.11.20 LeetCode 从零单刷个人笔记整理(持续更新) github:https://github.com/ChopinXBP/LeetCode-Babel 如果想用o(n)的方法找到最大的异或值,根本思路是将n^2的遍历计算转换成32n的按位匹配。这题可以用两种...
[Leetcode-421] Maximum XOR of Two Number in an Array? Given a non-empty array of numbers, a0, a1, a2, ..., an-1, where 0 <= ai <= 2^31. Find the maximum result ofai XOR aj, where 0 <=i, j < n. Do it in O(n) runtime. ...
LeetCode[421] Maximum XOR of Two Numbers in an Array Given a non-emptyarrayof 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?