Programmer Think

1. Understand polymorphism (1) Concept of polymorphism 1. Determine the specific target of function call according to the actual object type; 2. The same call statement has many different manifestations in actual operation, which is polymorphism. The same statement has many forms. Overloads of functions and operators are polymorphic. 3. I ...

1, Write code to output three integers from large to small   Method 1 #include<stdio.h> int main() { int a = 0; int b = 0; int c = 0; scanf("%d %d %d", &a, &b, &c); if (a > b && b > c) printf("%d %d %d", a, b, c); else if (a > c && c > b) printf("%d %d %d", a, c, b); else if (b ...

Enter two linked lists and find their first common node. As shown in the following two linked lists: The intersection begins at node c1. Example 1: Input: intersectVal = 8, listA = [4,1,8,4,5], listB = [5,0,1,8,4,5], skipA = 2, skipB = 3Output: Reference of the node with value = 8Input explanation: the value of intersection no ...

At work today, I wrote the code happily. A colleague ran over excitedly and said, "ah yuan, look at your enterprise wechat.". Me: "what's the situation? Do you want a raise?" Colleague: "will salary increase be said on enterprise wechat?" Me: "Okay" When I opened enterprise wechat, it turned out to be an ...

In this article, we will discuss how to stop and terminate a thread under C++11. Why doesn't C++11 directly provide a method to stop threads? This is because some resources may need to be released and closed before the thread stops, such as: The thread has acquired the ownership of the lock. Who will be responsible for releasing the ownership ...

Statement: This blog refers to the Chinese Language C website: C Language Chinese Network Connection The main record is learning the following: 1. Simple Factory Mode II. Factory Method Mode 3. Abstract Factory Mode Each main point consists of the following two parts: (1) Basic concepts and model structure (including some NOUN explanations, mo ...

This article can solve the following three problems: How are the member variables of a class distributed after inheritance in different ways? Virtual function table and virtual function table pointer, position in executable file? How does the content of the virtual function table of a class change after single inheritance, multiple inheritance ...

  C++98 Era The C++98 compiler has a special preference for int constants because they are one of the few things it can directly recognize. Because of this limited capability, the compiler can pre determine the size of the array: TEST_METHOD(TestConstVar) { //int n = 3; const int n = 3; int a[n] = { 0 }; Assert::AreEqua ...

vector Luogu original topic https://www.luogu.com.cn/problem/P1009 This topic requires high-precision factorial writing, but I haven't learned it yet. I picked up all kinds of materials and online classes from the Internet and found that before learning high precision, I need to know the container vector. What is a vector vector is a sequent ...

1. Generic programming For example, how to realize the general function of exchanging 2 numbers? void Swap(int x, int y) { int tmp = x; x = y; y = tmp; } void Swap(double x, double y) { int tmp = x; x = y; y = tmp; } Although function overloading can be implemented, there are several disadvantages: Overloaded functions only have ...