Programmer Think

Preface Some time ago, some fans asked me, when I finished my freshman year, I didn't know how I am doing with c++? Have you got all the points you need to know? Are you getting started? I have sorted out the C++ Basic and Core Advanced Knowledge Points in the last few days. If you haven't seen them, you can see them! Stay up late to burst th ...

Refer to c++ primer Refer to Matsumoto's procedural world Object oriented has three characteristics: Abstract encapsulation, inheritance and polymorphismAbstract encapsulation controls the access of data and methods through private and public, and divides the implementation and call Inheritance (c + + as an example) Data and common metho ...

describe There are n children playing the game of losing sandbags. The rule is that after receiving the sandbags, each child will immediately throw them to another child. At the beginning, the sand bag was in the hands of the first child. After being thrown out m times, it returned to the hands of the first child. It can be assumed that the sa ...

Directions for the first three phases: Phase I Phase II Phase III This should be the last issue of backtracking. The previous topics are more conventional, basically what subset or arrangement of written language. This issue summarizes some topics that prefer application. Of course, the essence is still that set. Examples Letter combinati ...

1, Interface layout The following picture is the interface layout of the calculator. You can know the basic functions of the calculator from the interface, including basic operations of addition, subtraction, multiplication and division, cosine, sine and other function operations. 2, Function brief introduction and operation display The ab ...

Title Description Given a tree with a size of ∼ nn ∼ it has ∼ nn nodes and ∼ n - 1n − 1 edges. The nodes are numbered from ∼ 1 \sim n1 ∼ n. Initially, each node has a number of ∼ 1 \sim n1 ∼ n, and each number of ∼ 1 \sim n1 ∼ n only appears on exactly one node. Next, you need to delete the edge e ...

1. Thread Foundation This part is in the header file < thread > Main contents: std::thread t1(func, para); std::thread t2(&A::func, &Aobj, para); t1.join(); t1.detech(); t1.joinable(); 1.1 creating threads Basic mode: std::thread obj(func), func is an adjustable object, which can be: functionFunction object &nd ...

C++ STL iterator One of the keys to understanding how to use C + + Standard Template Library (STL) containers is to understand how iterators work. Containers such as lists and maps don't behave like arrays, so you can't use a for loop to iterate over the elements. Similarly, because these containers cannot be accessed randomly, simple integer ...

Xmake It is a lightweight cross platform construction tool based on Lua.It is very lightweight and has no dependencies because it has built-in Lua runtime.It uses xmake Lua maintains project builds, compared to makefile / cmakelists Txt, the configuration syntax is more concise and intuitive, and is very friendly to novices. It can get started ...

The test paper includes 4 questions, 3 programming questions and 1 question and answer, which is limited to 100 minutes. First programming question Title: Niuniu has a string s with a length of n only composed of characters' 1 'to' 9 '. Now Niuniu can intercept a substring with a length of k as a positive decimal integer. For example, for the ...