Return the bitwise XOR of all elements ofnums. Example 1: Input: n = 5, start = 0 Output: 8 Explanation: Array nums is equal to [0, 2, 4, 6, 8] where (0 ^ 2 ^ 4 ^ 6 ^ 8) = 8. Where "^" corresponds to bitwise XOR operator. Example 2: Input: n = 4, start = 3 ...
[leetcode] 1486. XOR Operation in an Array Description Given an integer n and an integer start. Define an array nums where nums[i] = start + 2*i (0-indexed) and n == nums.length. Return the bitwise XOR of all elements of nums. Example 1: Input: n = 5, start = 0 Output: 8...
If she erases 1, the nums array becomes [1, 2]. The bitwise XOR of all the elements of the chalkboard is 1 XOR 2 = 3. Now Bob can remove any element he wants, because Alice will be the one to erase the last element and she will lose. If Alice erases 2 first, now nums become...
[LeetCode] Chalkboard XOR Game 黑板亦或游戏 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 t...
Can you solve this real interview question? Find XOR Sum of All Pairs Bitwise AND - The XOR sum of a list is the bitwise XOR of all its elements. If the list only contains one element, then its XOR sum will be equal to this element. * For example, the
Bitwise XOR of All Pairings/solution2-optimize.cpp Original file line numberDiff line numberDiff line change @@ -0,0 +1,28 @@ #include<iostream> #include<vector> using namespace std; class Solution { public: int xorAllNums(vector<int>& nums1, vector<int>& nums2) { int res = 0;...
A change operation is defined as : "You can change "1" to "0" , vice-versa" Similar problem : https://leetcode.com/problems/minimum-number-of-k-consecutive-bit-flips/ The only thing I could decipher till now is that the answer mainly depends on the first subarrays of size k . 0...
技术标签: 算法 数据结构 leetcodeDescription: 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 ...
so, now find no of subarrays with odd 1s for each of the bits. so how can we do this? see we can count no of subarrays starting with 0th index and have odd 1s then we can iterate over alliiletting it to be the starting index of the subarrays. ...
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 chalkboard to become 0, then that player...