1/**2* @param {number[]} nums3* @return {number}4*/5varmissingNumber =function(nums) {6let res =nums.length;7for(let i = 0; i < nums.length; i++) {8res ^= i ^nums[i];9}10returnres;11}; Java实现 1classSolution {2publicintmissingNumber(int[] nums) {3intres =nums.leng...
方法一:时间复杂度O(n),空间复杂度O(n/32) 传统方法, 同一时候使用位运算压缩空间(int型32位标记32个数字) //36msclassSolution{public:intmissingNumber(vector<int>& nums){intn = nums.size() +1;intc = (n >>5) +1;int*p = newint[c];memset(p,0, c*sizeof(int));for(intx : nums) ...
solution3:二分查找法; 参考 1. Leetcode_268_Missing Number; 完
LeetCode Username endlesscheng Problem Number, Title, and Link The Latest Time to Catch a Bushttps://leetcode.com/problems/the-latest-time-to-catch-a-bus/description/ Bug Category Missing test case(Incorrect/Inefficient Code getting accepted because of missing test cases) Bug Description An accep...
Leetcode: Missing Number Best Solution: Bit manipulation The basic idea is to use XOR operation. We all know that a^b^b =a, which means two xor operations with the same number Leetcode Array/String Bit Manipulation i++ 数组 转载 mob604756f976e6 2015-12-24 08:50:00 137阅读 2评论...
Original file line numberDiff line numberDiff line change @@ -155,7 +155,7 @@ Notice that I didn't mention the words "two pointers" in my solution – they ar ## Footnotes [^1]: Make sure you understand why this is true. In general, you should aim to **understand every sentence ...
https://leetcode.com/discuss/53790/1-lines-ruby-python-java-c https://leetcode.com/discuss/53871/java-simplest-solution-o-1-space-o-n-time https://leetcode.com/discuss/58647/line-simple-java-bit-manipulate-solution-with-explaination
2、结合律(即(ab)c == a(bc)) 3、对于任何数x,都有xx=0,x0=x 4、自反性 A XOR B XOR B = A xor 0 = A 所以我们将缺少数字的数组和应有的数组异或一遍,最后的结果就是我们要找的数字。 代码 classSolution{publicintmissingNumber(int[] nums){intres=0;for(inti=0; i < nums.length; i+...
Leetcode: Missing Number Best Solution: Bit manipulation The basic idea is to use XOR operation. We all know that a^b^b =a, which means two xor operations with the same number Leetcode Array/String Bit Manipulation i++ 数组 转载 mob604756f976e6 2015-12-24 08:50:00 137阅读 2评论...
[LeetCode] 163. Missing Ranges_Easy tag: array You are given an inclusive range[lower, upper]and a sorted unique integer arraynums, where all elements are in the inclusive range. A numberxis considered missing ifxis in the range[lower, upper]andxis not innums....