Explanation: The binary representation of 1 is 1 (no leading zero bits), and its complement is 0. So you need to output 0. 具体实现 classSolution{public:intfindComplement(intnum){inti =0;while(num >=pow(2, i)) { i++; }intvalue =pow(2, i >0? i :1) -1;returnvalue ^ num; ...
Section 17: Hash Tables / Dictionaries question: 4sum 2 (Medium) Lecture 79 Brute force Explanation Lecture 80 Brute Force Pseudocode Walkthrough Lecture 81 Approach 2: Optimal approach Lecture 82 Implementing the code Section 18: Microsoft Hash Tables / Dictionaries question: LRU Cache (Medium) Le...
那么面试官看你做到这里微微一笑,你此时意识到事情并没这么简单,第一个 follow up 来了!Follow up Question 1 你能找出每个月对应的accept_rate吗? 你想了一想那不就group by一下就完事了吗? 在刚刚的代码基础上: select ifnull(round(b.c / a.c,2),0) as accept_rate, a.month from (select count...
【每日leetcode】37.最小操作次数使数组元素相 n-1个数同时加一,就好比每次有一个数自身减一,因为只能做减法,所以数组最后的数只能是最小值。这样的话每个元素减去最小值求其就是答案。小小菜鸟,博君一笑! ——leetcode此题热评 前言 哈喽,大家好,我是一条。 糊涂算法,难得糊涂 Question 453. 最小操作次数...
LeetCode 658 Find K Closest Elements Medium Good question. Using binary search to find the start index of the k window. A obvious characteristic of the final state is that the difference of left element and x should always be less than or equal to that of the right element. So we can ...
1 package Others; 2 3 import java.util.Arrays; 4 5 6 //Question 455. Assign Cookies 7 /* 8 Assume you are an awesome parent and want to give your chil
Simple simulation with follow up question 代码语言:javascript 代码运行次数:0 运行 AI代码解释 1publicintreverseBits(int n){2int res=0;34for(int i=0;i<32;i++){5int t=n&1;6n=n>>1;7res=res<<1;8res=res|t;910}11returnres;12// return Integer.reverse(n);13}1415publicintreverseBits...
1. Question Say you have an array prices for which the ith element is the price of a given stock on day i. Design an algorithm to find the maximum profit. You may complete as many transactions as you like (i.e., buy one and sell one share of the stock multiple times). Note: ...