在CareerCup中有一道类似的题,5.7 Find Missing Integer 查找丢失的数,但是那道题不让我们直接访问整个int数字,而是只能访问其二进制表示数中的某一位,强行让我们使用位操作Bit Manipulation来解题,也是蛮有意思的一道题。 LeetCode All in One 题目讲解汇总(持续更新中...)
[leetcode] Missing Number系列 今天来总结一下Missing Number一系列问题 1、Find All Numbers Disappeared in an Array Given an array of integers where 1 ≤ a[i] ≤n(n= size of array), some elements appear twice and others appear once. Find all the elements of [1,n] inclusive that do not...
题目链接:https://leetcode.com/problems/missing-number/ 题目: n distinct numbers taken from0, 1, 2, ..., n, find the one that is missing from the array. For example, Given nums =[0, 1, 3]return2. Note: Your algorithm should run in linear runtime complexity. Could you implement i...
Your algorithm should run in linear runtime complexity. Could you implement it using only constant extra space complexity? class Solution(object): def missingNumber(self, nums): """ :type nums: List[int] :rtype: int """ nums.sort() n = len(nums) for i in range(0, n): if nums[...
这就是 LeetCode 136 - Single Number 这题,所以我们可以采用相同的异或解法。 因为a ^ a = 0 ,所以出现两次的数异或后会相互抵消。 那么求所有数的异或和即可,最后剩余的就是只出现一次的数。 时间复杂度:O(n) 需要遍历处理全部 O(n) 个数 空间复杂度:O(1) 只需要维护常数个额外变量即可 代码(Python...
Two Sum - Leetcode 1 - HashMap - Python 呼吸的chou 2 0 Longest Increasing Subsequence - Dynamic Programming - Leetcode 300 呼吸的chou 0 0 Search in rotated sorted array - Leetcode 33 - Python 呼吸的chou 0 0 吹爆!这绝对2025年讲的最好的Python金融分析与量化交易实战教程!从金融时间序...
总结: Array, bit manipulation ** Anyway, Good luck, Richardo! My code: publicclassSolution{publicintmissingNumber(int[]nums){if(nums==null||nums.length==0)return-1;intsum=0;for(inti=0;i<nums.length;i++)sum+=nums[i];intn=nums.length;return(1+n)*n/2-sum;}} ...
Given an arraynumscontainingndistinct numbers in the range[0, n], returnthe only number in the range that is missing from the array. Example 1: Input:nums = [3,0,1] Output:2 Explanation: n = 3since there are 3 numbers, so all numbers are in the range[0,3]. 2 is the missing ...
[Leetcode] Missing Number and Missing First Positive 找缺失数 Missing Number Given an array containing n distinct numbers taken from 0, 1, 2, ..., n, find the one that is missing from the array. For example, Given nums = [0, 1, 3] return 2....
LeetCode之Missing Number 【摘要】 1、题目 Given an array containing n distinct numbers taken from 0, 1, 2, ..., n, find the one that is missing from the array. For example, Given nums = [0, ... 1、题目 Given an array containing n distinct numbers taken from0, 1, 2, ..., ...