


Detailed explanation of C++ function recursion: recursive implementation of factorial and Fibonacci sequences
Recursion is a programming technique for function self-calling, which is divided into baseline conditions and recursive calls. Using recursion you can implement factorial, which is a positive integer multiplied by the product of all its smaller positive integers, and Fibonacci sequence, which is a sequence in which each number is the sum of the previous two numbers.
Detailed explanation of C function recursion: Recursive implementation of factorial and Fibonacci sequences
Introduction
Recursion is a programming technique that allows a function to call itself to solve a problem. Recursive functions are usually divided into two parts: baseline conditions and recursive calls.
Recursive implementation of factorial
Factorial is the product of a positive integer multiplied by all its smaller positive integers. For example, the factorial of 5 is equal to 5 x 4 x 3 x 2 x 1 = 120.
int阶乘(int n) { if (n == 0) { // 基线条件 return 1; } else { return n * 阶乘(n - 1); // 递归调用 } }
Practical case: Calculate the factorial of 10
int result = 阶乘(10); cout << "10 的阶乘为 " << result << endl;
Output:
10 的阶乘为 3628800
Recursive implementation of Fibonacci sequence
The Fibonacci sequence is a sequence of numbers in which each number is the sum of the previous two numbers. The sequence starts with 0 and 1.
int斐波那契(int n) { if (n == 0) { // 基线条件 return 0; } else if (n == 1) { return 1; } else { return 斐波那契(n - 1) + 斐波那契(n - 2); // 递归调用 } }
Practical case: Print the first 10 numbers of the Fibonacci sequence
for (int i = 0; i < 10; i++) { cout << 斐波那契(i) << " "; }
Output:
0 1 1 2 3 5 8 13 21 34
The above is the detailed content of Detailed explanation of C++ function recursion: recursive implementation of factorial and Fibonacci sequences. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



The steps to implement the strategy pattern in C++ are as follows: define the strategy interface and declare the methods that need to be executed. Create specific strategy classes, implement the interface respectively and provide different algorithms. Use a context class to hold a reference to a concrete strategy class and perform operations through it.

Golang and C++ are garbage collected and manual memory management programming languages respectively, with different syntax and type systems. Golang implements concurrent programming through Goroutine, and C++ implements it through threads. Golang memory management is simple, and C++ has stronger performance. In practical cases, Golang code is simpler and C++ has obvious performance advantages.

Nested exception handling is implemented in C++ through nested try-catch blocks, allowing new exceptions to be raised within the exception handler. The nested try-catch steps are as follows: 1. The outer try-catch block handles all exceptions, including those thrown by the inner exception handler. 2. The inner try-catch block handles specific types of exceptions, and if an out-of-scope exception occurs, control is given to the external exception handler.

To iterate over an STL container, you can use the container's begin() and end() functions to get the iterator range: Vector: Use a for loop to iterate over the iterator range. Linked list: Use the next() member function to traverse the elements of the linked list. Mapping: Get the key-value iterator and use a for loop to traverse it.

C++ template inheritance allows template-derived classes to reuse the code and functionality of the base class template, which is suitable for creating classes with the same core logic but different specific behaviors. The template inheritance syntax is: templateclassDerived:publicBase{}. Example: templateclassBase{};templateclassDerived:publicBase{};. Practical case: Created the derived class Derived, inherited the counting function of the base class Base, and added the printCount method to print the current count.

Causes and solutions for errors when using PECL to install extensions in Docker environment When using Docker environment, we often encounter some headaches...

In C, the char type is used in strings: 1. Store a single character; 2. Use an array to represent a string and end with a null terminator; 3. Operate through a string operation function; 4. Read or output a string from the keyboard.

In multi-threaded C++, exception handling is implemented through the std::promise and std::future mechanisms: use the promise object to record the exception in the thread that throws the exception. Use a future object to check for exceptions in the thread that receives the exception. Practical cases show how to use promises and futures to catch and handle exceptions in different threads.
