理解:”移除双重否定”是指把代码中的双重否定语句修改成简单的肯定语句,这样即让代码可读,同时也给维护带来了方便. 详解:避免双重否定重构本身非常容易实现,但我们却在太多的代码中见过因为双重否定降低了代码的可读性以致于非常让人容易误解真正意图.存在双重否定的代码具有非常大的危害性,因为这种类型的代码容易引起错误的假设,错误的假设又会导致书写出错误的维护代码,最终会导致bug产生.具体可以看下面的代码: public class Order { public void Checkout(IEnume…

1.题目 26. Remove Duplicates from Sorted Array--Easy Given a sorted array nums, remove the duplicates in-place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this by modifyi…

# -*- coding: utf8 -*-'''__author__ = 'dabay.wang@gmail.com' 26: Remove Duplicates from Sorted Arrayhttps://oj.leetcode.com/problems/remove-duplicates-from-sorted-array/ Given a sorted array, remove the duplicates in place such that each element appe…

LeetCode 26 Remove Duplicates from Sorted Array [Array/std::distance/std::unique] <c++> 给出排序好的一维数组,删除其中重复元素,返回删除后数组长度,要求不另开内存空间. C++ 很简单的题目,但是第一发RE了,找了很久问题出在哪.最后单步调试发现vector.size()返回值是unsigned型的.unsigned型和int型数据运算结果还是unsigned型的.这就导致当数组为空时,nums.size(…

26. Remove Duplicates from Sorted Array[easy] Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this in place with consta…

尽管我在很多代码中发现了这种严重降低可读性并往往传达错误意图的坏味道,但这种重构本身还是很容易实现的.这种毁灭性的代码所基于的假设导致了错误的代码编写习惯,并最终导致bug.如下例所示: public class Order { public void Checkout(List<Product> products, Customer customer) { if (!customer.getNotFlagged()) { // the customer account is flagged…

Given a non-negative integer num represented as a string, remove k digits from the number so that the new number is the smallest possible. Note: The length of num is less than 10002 and will be ≥ k. The given num does not contain any leading zero. Ex…

题目: Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this in place with constant memory. For example, Given input array…

Given a sorted array nums, remove the duplicates in-place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this by modifying the input array in-place with O(1) extra memory.…

26.Remove Duplicates from Sorted Array Given a sorted array nums, remove the duplicates in-place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this by modifying the input…

在传统的代码库中,我们常常会看到一些违反了SRP原则的类.这些类通常以Utils或Manager结尾,有时也没有这么明显的特征而仅仅是普通的包含多个功能的类.这种God类还有一个特征,使用语句或注释将代码分隔为多个不同角色的分组,而这些角色正是这一个类所扮演的.  久而久之,这些类成为了那些没有时间放置到恰当类中的方法的垃圾桶.这时的重构需要将方法分解成多个负责单一职责的类. public class CustomerService { public Double CalculateOrderD…

Given a non-negative integer num represented as a string, remove k digits from the number so that the new number is the smallest possible. Note: The length of num is less than 10002 and will be ≥ k. The given num does not contain any leading zero. Ex…

Given a sorted array nums, remove the duplicates in-place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this by modifying the input array in-place with O(1) extra memory.…

Problem: Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this in place with constant memory. For example,Given input ar…

基于c2的wiki条目.Los Techies的Chris Missal同样也些了一篇关于反模式的post.  简单地说,当你使用大量的嵌套条件判断时,形成了箭头型的代码,这就是箭头反模式(arrowhead antipattern).我经常在不同的代码库中看到这种现象,这提高了代码的圈复杂度(cyclomatic complexity). 下面的例子演示了箭头反模式 ) { if (SecurityChecker.CheckPermission(user, permission) || exe…

题目描述: Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this in place with constant memory. For example, Given input arra…

Remove Duplicates from Sorted Array Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this in place with constant memory.…

Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this in place with constant memory. For example,Given input array nums …

Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this in place with constant memory. For example,Given input array nums …

Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this in place with constant memory. For example,Given input array nums …

一天一道LeetCode系列 (一)题目 Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this in place with constant memory. For example, G…

[LeetCode] Remove Duplicates from Sorted Array 有序数组中去除重复项 描述 Given a sorted array nums, remove the duplicates in-place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this…

题目内容: Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this in place with constant memory. For example, Given input arra…

Given a sorted array, remove the duplicates in-place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this by modifying the input array in-place with O(1) extra memory. Exam…

Given a sorted array nums, remove the duplicates in-place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this by modifying the input array in-place with O(1) extra memory.…

  Given a sorted array, remove the duplicates in-place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this by modifying the input array in-place with O(1) extra memory. Ex…

Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this in place with constant memory. For example, Given input array nums…

Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this in place with constant memory. For example,Given input array nums …

国外的表达思维跟咱们有很大差别,做这道题的时候很明显.简单说本题就是让你把有序数组中的重复项给换成正常有序的.比如 1 2 2 3换成 1 2 3 3,根本不需要考虑重复的怎么办,怎么删除重复项等等.拿起键盘干就行了.然后返回有序项的下标就可以. Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not…

,,,,}; //把数组的值赋给vector vector<int> vec(arr, arr+sizeof(arr)/sizeof(int)); 解法一: 时间复杂度O(n) 空间复杂度O(1) class Solution { public: void moveZeroes(vector<int>& nums) { ; //nums中,[0,...k)的元素均为非0元素 //遍历到第i个元素后,保证[0,...i)中所有非0元素 //都按照顺序排列在[0,...k)中…