leetcode problem :23. Merge k Sorted Lists 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 classSolution { public: ListNode* mergeKLists(vector<ListNode*>& list
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NO.2 简单 (176. 第二高的薪水) leetcode-cn.com/problem # 将第一高的工资筛选掉,再次用MAX就可以取到第二高的工资了。 select max(Salary) as SecondHighestSalary from Employee where Salary <> (select max(Salary) from Employee) NO.3 中等 (184. 部门工资最高的员工) leetcode-cn.com/problem...
53. 最大子数组和 - 给你一个整数数组 nums ,请你找出一个具有最大和的连续子数组(子数组最少包含一个元素),返回其最大和。 子数组 是数组中的一个连续部分。 示例 1: 输入:nums = [-2,1,-3,4,-1,2,1,-5,4] 输出:6 解释:连续子数组 [4,-1,2,1] 的和最大,为
Can you solve this real interview question? Text Justification - Given an array of strings words and a width maxWidth, format the text such that each line has exactly maxWidth characters and is fully (left and right) justified. You should pack your word
给你一个二叉树的根节点root, 检查它是否轴对称。 示例1: 输入:root = [1,2,2,3,4,4,3]输出:true 示例2: 输入:root = [1,2,2,null,3,null,3]输出:false 提示: 树中节点数目在范围[1, 1000]内 -100 <= Node.val <= 100 进阶:你可以运用递归和迭代两种方法解决这个问题吗?
Problem # Given an array of words and a length L, format the text such that each line has exactly L characters and is fully (left and right) justified. # # You should pack your words in a greedy approach; that is, pack as many words as you can in each l JNingWei 2018/09/27 ...
Leetcode - Practice Problem 751.IP to CIDR 我请问呢什么题目啊在这里考二进制呢。。。首先我们要会怎样用python 把十进制和二进制互相转换 >>> int("1111", 2) # convert binary to int >>> 15 >>> format(15, '08b') # convert int 15 to binary in 8-bit representation...
testHead=testHead.next; } }if(!valid){break; }if(pre ==null){ pre=testHead; ret=pre; }else{ pre.next=testHead; } ListNode oldPre=current; ListNode next=current.next; current.next=testHead.next; pre=current; current=next;for(inti = 1; i < k; ++i){ ...
Notes: It is intended for this problem to be specified vaguely (ie, no given input specs). You are responsible to gather all the input requirements up front. Requirements for atoi: The function first discards as many whitespace characters as necessary until the first non-whitespace character is...