Programmer Think

1, Experimental purpose 1. Be familiar with the integrated development environment of C/C + + language; 2. Master the concept of algorithm; 3. Understand the problem solving method; 4. Understand the idea of recursion and learn to write recursion. 2, Experimental principle algorithm An algorithm is a description of the steps of solving a spe ...

Original link: http://tecdat.cn/?p=25067 This paper describes how to} perform principal component analysis (PCA) using R. You will learn how to} use PCA_ Forecast_ New individual and variable coordinates. We will also provide_ PCA results_ The theory behind it.There are two general methods to perform PCA in R:_ Spectral decomposition_ , check t ...

Blog home page: https://blog.csdn.net/qq_50285142Welcome to praise 👍 Collection ⭐ ， attention ❤ Leaving a message. 📝 Please correct any errors 🎈 Click to receive a large number of learning resources 🎈 A. Equidistant Letters A string that requires equal distances between the same letters and rearranges them Find the same letters ...

BUPT 2021 autumn calculation introduction eighth experiment Recursive evaluation one Experiment 6_ 1_ Recursive evaluation I (100 points) Existing function f(n), n is an integer greater than or equal to 0. f(n) = 0 when n is equal to 0, f(n)=f(n-1) +n when n is greater than 0 3 Note: this problem requires recursive solution, and global varia ...

Words written before: Sword finger offer brushes the questions for the second time. I hope each question can last for seconds. Record your understanding of the topic from the back to the front. Nearest common ancestor of binary tree Problem description problem analysis Nearest common ancestor: according to the definition of encyclopedia, ...

Find the maximum and minimum values of the array In the program, we often use an array (list) to store a given linear sequence (such as {1,2,3,4}), so how to find the maximum or minimum value in the array (sequence)? There are many algorithms for finding the maximum or minimum value in an array (sequence). Next, we take the {3,7,2,1} sequence ...

Mind map remarks: Most of the questions and solutions of the sword finger Offer are the crystallization of the leaders in the solution area. They are only used for personal learning Positive sequence Edition 03 duplicate number in array Title: find duplicate numbers in the array. All numbers in an array num of length n are in the ra ...

catalogue 1 particle swarm optimization 2 two dimensional environment modeling 3 path planning 3.1 initialization 3.2 fitness function  ​3.3 simulation results 1 particle swarm optimization yes Particle swarm optimization The summary is as follows: particle swarm optimization algorithm is a population-based search process, in whic ...

OI linear algebra - matrix This chapter only discusses linear algebra in OI. For too advanced knowledge of linear algebra, please refer to other textbooks. Matrix and vector Matrix is a mathematical concept, which corresponds to a two-dimensional array in a computer. For example: A ...

Northwest University of technology NOJ-Python programming problem set: Noj Python Programming: Season 1: season 1-easy (1-10) Noj Python Programming: Season 2: Season 2 snippet (11-20) Noj Python Programming: Season 3: season 3-loop (21-30) NOJ-Python programming: Season 4: enumeration algorithm (31-40) NOJ-Python programming: Season 5: modular ...