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greedy Greedy algorithm or greedy idea adopts greedy strategy to ensure that each operation is locally optimal, so that the final result is globally optimal. assignment problem 455. Distribution of biscuits Suppose you are a great parent and want to give your children some cookies. However, each child can only give one biscuit at most. Fo ...

                catalogue Class Constructor characteristic Its characteristics are as follows Compiler default generated constructor Piecemeal knowledge Parameterless constructor call details      ​​​​ The following conflict scenarios may exist for all default and parameterless constructors reflection Destructor characteristic Com ...

1. Bubble sorting Average time complexity: O(n^2) Worst time complexity: O(n^2) Space complexity: O(1) Stable: Yes Principle: it repeatedly visits the sequence to be sorted, compares two elements at a time, and exchanges them if they are in the wrong order. The work of visiting the sequence is repeated until there is no need to exchange, that i ...

reference resources: Chicken pecks rice When we install the software, a dialog box will pop up to tell us the steps. This is the Wizard dialog box. Today, let's study the method of creating Wizard dialog box. The two basic classes of the Wizard dialog box are property page class CMFCPropertyPage and property sheet class CMFCPropertySheet. Each ...

This article involves knowledge points: the definition of structure, the use of vector, the use of iterator, the avoidance of wild iterator and the method of sorting. If you need to do a course design such as student management system, this article will be a very important foundation. On this basis, you can easily complete the design of student ...

Algorithm - stack and queue: connected to rain Give a row of columns with width of 1 and height of n, and calculate the area that can receive rainwater. Train of thought analysis: Method 1: using the double pointer method, calculate by column. The first column and the last column do not receive rainwater. Because the width is 1, the area of ...

Many STL algorithms use function objects - also known as function symbols. A function character is any object that can be used in conjunction with () in a functional manner. Including function name, function pointer and class object of overload (). For example, such a class is the function symbol class A { private: int a; public: A(in ...

Deep and shallow copy of string Before starting to simulate the implementation of the string class, let's talk about the deep and shallow copy of string In the previous study of classes and objects, we know that there is no problem using shallow copy (value copy) for Date classes like Date, but for classes like string, shallow copy cannot ...

Question 1 [1322: [example 6.4] interceptor missile problem (noip 1999)] [Title Description] In order to defend against the missile attack of the enemy country, a certain country has developed a missile interception system, but this interception system has a defect: although its first shell can reach any height, each shell in the future ca ...

catalogue 2. STL acquaintance 2.1 birth of STL 2.2 basic concepts of STL 2.3 STL six components 2.4 containers, algorithms and iterators in STL 2.5 initial knowledge of container algorithm iterator 2.5.2 Vector stores user-defined data types 2.5.3 Vector container nested container 2. STL acquaintance 2.1 birth of STL For a lon ...