stl library

the principle of the algorithm, and do not have to verify its accuracy. However, when you start to work in a computer language, you will find that you need to repeat the mature algorithms again and again in the face of different needs, and you will be caught in some bugs that are inadvertently generated by yourself. At this point, you want to find a tool that has helped you implement these features and how you can use them to do so without compromising performance. What you need is

Detailed usage of set in STL !!!!, How to use set in stl 1. About set C ++ STL has been widely praised and used by many people. It not only provides convenient containers such as vector, string, and list, more importantly, STL encapsulates many complex data structure algorithms and a large number of common data structu

The STL selects the method to delete elements with caution, and the stl selects the elements with caution.Zookeeper 1. Delete all objects with specific values in the container 1. If the container is a vector, string, or deque, use erase-remove. For example:Vector C. erase (remove (c. begin (), c. end (), 1963), c. end (); // delete an element whose value is 1963 The following describes the algorithm remove

STL algorithm inplace_merge (24), stl algorithm Inplace_merge prototype: Std: inplace_merge Default (1) template Custom (2) template This function combines the ordered sequences [first, middle) and [middle, last) into an ordered sequence. The two cells must be sorted and all use the same sorting rule. Note that first, middle, and last are all in the same container, but they a

Original address: http://hsw625728.blog.163.com/blog/static/3957072820091116114655254/A The characteristics of various containers Vector Typical sequence container,C + + standard strict requirements for the implementation of the secondary container memory must be continuous, the only can and standard C-compatible STL container, arbitrary elements read, modify with constant time complexity, insert at the end of the sequence, delete i

C ++ STL boundary function, stl boundary Function C ++ provides a class of STL functions to retrieve elements in an array. The simple and widely used functions include binary_search, upper_bound, and lower_bound, they are all included in the header file # include // STL// Lower_bound and upper_bound# Include # Include

Efficient STL-iterator algorithm, STL-generator Efficient STL-iterator Algorithm Each standard STL container provides four types of iterators: iterator, const_iterator, reverse_iterator, and const_reverse_iterator. At the same time, some forms of insert and erase of the container only accept one of them. There is no

A recent project is to develop a framework for different product lines within the company. One problem encountered between the two is the use of the STL container, and the conclusion is that do not pass the STL container in the public interface: STL containers mentioned here, but mainly refer to containers and string classes, but they can be extended to any typ

help Ignatius to solve this problem? Inputthe input contains several test cases. each test case consists of two numbers, N and M (1 Outputfor each test case, you only have to output the sequence satisfied the Beelzebub's demand. when output a sequence, you shocould print a space between two numbers, but do not output any spaces after the last number. Sample input6 411 8 Sample output1 2 3 5 6 41 2 4 5 6 7 9 8 11 10 Authorignatius. L Mean: Give you n and M, let you output from 1 ~ N. The N num

In the last project, I thought of using the MFC container class, so I kept the promise to come to a cobarray class. Because my project is used on the server side and has been running for many years, so it didn't take long for me to run, so I found a memory leakage problem. Shit, I almost checked my own section.CodeLater, I found that the cobarray class was used, but it was not released. It was very difficult to see msdn. It was not very good at solving problems such as memory release. So I am lo

Summary of STL range member functions and interval algorithms, stl range Function AlgorithmsSummary of STL range member functions and interval Algorithms Here we summarize the interval member functions and interval algorithms that can replace loops; Compared with the single element traversal operation, the advantage of using the range member function is:1) fewer

See more details: https://zcheng.ren/2016/08/16/STLAllocater/In the implementation of STL, the Space Configurator is the most important one, because the whole STL operation object is placed in the container, how to allocate space for the container so that the container can store the data. At this time we need to configure the Alloc for processing.What does the space Configurator alloc include?The Space Conf

Preface Function objects are also important in STL, and sometimes the behavior of STL algorithms can be limited. For example, in the STL algorithm analysis described earlier, each algorithm basically provides two operation versions, one of which allows you to specify the function object. This allows you to operate the algorithm based on your needs. Function objec

Author: the robe of anger 1. Introduction to STLSTL (Standard Template Library) is a collection of software developed by the HP lab. It was developed by Alexander Stepanov, Meng Lee, and David R musser while working at the HP lab. Although it mainly appears in C ++, this technology has existed for a long time before it was introduced into C ++.In a broad sense, STL code is divided into three types: algorith

^as = gcnew ArrayList;As->add ("Pooh"); As->add ("Piglet");As->add ("Eeyore"); As->add ("Rabbit");As->sort ();Console::WriteLine ("ArrayList holds {0} elements:", as->count);for (int i = 0; i Console::WriteLine (as[i]);int index = As->indexof ("Pooh");if (index!=-1){Need a clear downcaststring^ item = safe_cast (as[index]);As->removeat (index);}As->remove ("Rabbit");Console::WriteLine ("\narraylist holds {0} elements:", as->count);ienumerator^ is = As->getenumerator ();while (Is->movenext ())Co

Six major STL components-imitation function, six major stl components Functor is to make the use of a class or class template look like a function. The implementation is to overload operator () in a class or class template. This class or class template has the behavior of similar functions. The Imitation function is a smart function, just like the behavior of a smart pointer, which can be seen as a pointer.

In C ++, the STL container type is used as a function and does not use references, which leads to a decrease in program efficiency. stl containers I recently found a problem with algorithm questions: I implement an algorithm recursively, but in the TreeNode * createTree Function(Vector , Int left, int right) TreeNode * createTree (Vector , Int left, int right), The result always times out, I found some

Set and STL operations for specific stl operationsWrong operation before sorted set. Sorry./* Begin (), returns the first element of the set containerEnd (), returns the last element of the set container.Clear (), delete all elements in the set containerEmpty () to determine whether the set container is emptyMax_size () returns the maximum number of elements that a set container may contain.Size (), returns

STL container string basic usage summary, stl container string Summary // Method: append (), insert (), erase (), empty (), replace (), // find (), compare (), empty () // algorithm: reverse () # include

Examples of stl containers and stl containers in c ++ 1. set (set) -- contains sorted data. The values of these data must be unique. That is to say, after the set container is input, the data will be de-duplicated and sorted.S. insert () insert an elementS. begin () s. end () returns the first and last pointers respectively.S. clear () clears the setThe iterator set 2. stringstream (container)-You can s