关于此课程： The third course in the specialization Introduction to Programming in C introduces the programming constructs pointers, arrays, and recursion. Pointers provide control and flexibility when programming in C by giving you a way to refer to the location of other data. Arrays provide a way to bundle data by guaranteeing sequences of data are grouped together. Finally, recursive functions—functions that call themselves—provide an alternative to iteration that are very useful for implementing certain algorithms.
此课程适用人群： This course is for learners who have an interest in learning how to program, for people with no programming experience or for people with some experience who would like to gain solid fundamentals and a deeper understanding of how to program effectively.
制作方： Duke University
教学方： Andrew D. Hilton, Assistant Professor of the Practice
Electrical and Computer Engineering
教学方： Anne Bracy, Senior Lecturer
Computer Science, Cornell University
教学方： Genevieve M. Lipp, Adjunct Professor
Electrical and Computer Engineering/Mechanical Engineering
教学方： Liz Wendland
| 基本信息 | 课程 3（共 4 门，Introduction to Programming in C Specialization ） |
| 级别 | 初级 |
| 承诺学习时间 | 4 weeks of study, 6–8 hours/week |
| 语言 | English |
| 如何通过 | 通过所有计分作业以完成课程。 |
| 用户评分 |
授课大纲
第 1 周
Pointers
Pointers are one of the most important and powerful aspects of the C language. Pointers are critical to understanding arrays, which let you manipulate sequences of data. They also give a programmer control and flexibility when programming, enabling solutions that are clean and efficient. Some other languages use pointers implicitly—or pointer-like constructs—so understanding their use will make you a better programmer in any language.
5 个视频, 15 个阅读材料, 3 个练习测验
- 视频: Naive Swap
- Reading: Pointer Basics
- Reading: Pictures
- 视频: Pointers
- Practice Quiz: Pointers Conceptually
- Reading: Swap Revisited
- 视频: Corrected Swap
- Reading: The Practice Programming Environment
- Reading: Assignment 11_read_ptr1
- Reading: Pointers under the Hood
- Reading: A Program's View of Memory
- 视频: Swap with Hardware
- Reading: NULL
- Practice Quiz: Pointers in Hardware
- Reading: Pointers to Structs
- Reading: Pointers to Pointers
- Reading: const
- Practice Quiz: Pointers to Sophisticated Types
- Reading: Aliasing
- Reading: Pointer Arithmetic
- Reading: Use Memory Checker Tools
- Reading: Assignment 12_read_ptr2
第 2 周
Arrays
Arrays are sequences of memory of the same type that are guaranteed to be one after another. This is an incredibly useful data format, enabling you to store many things together under one variable name. In this module, you will learn how to use arrays to solve more complex problems and lay the groundwork for more complex data types.
5 个视频, 9 个阅读材料, 1 个练习测验
- Reading: Cryptography Motivation
- Reading: Array Declaration and Initialization
- Reading: Accessing an Array
- 视频: Array Access with Pointer Indexing
- Practice Quiz: Array Basics
- Reading: Passing Arrays as Parameters
- Reading: Writing Code with Arrays
- 视频: Index of Largest Element
- 视频: Closest Point Step-Through
- Reading: Assignment 13_read_arr1
- Reading: Dangling Pointers
- 视频: Dangling Pointers
- Reading: Array Size
- Reading: Assignments 14_array_max, 15_tests_subseq, 16_subseq
第 3 周
Uses of Pointers
Now that you have mastered the basics of pointers and arrays, it is time to see some important uses of them. In this module, you will learn about how to manipulate strings and multi-dimensional arrays. You will also learn about function pointers, which allow you to pass "which function to call" as the parameter of another function.
4 个视频, 18 个阅读材料, 2 个练习测验
- Reading: String Literals
- Reading: Mutable Strings
- Reading: String Equality
- Reading: String Copying
- 视频: Copy a String
- Reading: Converting Strings to ints
- Reading: Standard Library Functions
- Reading: Assignments 17_read_arr2 and 18_reverse_str
- Reading: Introduction
- Reading: Declaration
- Reading: Indexing
- Reading: Initializing
- Reading: Array of Pointers
- Reading: Incompatibility
- 视频: Incompatible Representations
- Reading: Array of Strings
- Reading: Assignments 19_bits_arr and 20_rot_matrix
- Reading: Function Pointer Basics
- Reading: Sorting Functions
- Practice Quiz: Function Pointers
- 视频: Buffer Overflow
- Reading: Format String Attacks
- Practice Quiz: Security Hazards
第 4 周
Recursion
By now you are familiar with iteration, in which repetition is expressed in terms of loops. Another programming technique to accomplish similar ideas is "recursion" in which a more complex instance of a problem is expressed in terms of solutions to simpler instances of the problem. In this module, you will learn how to read and write recursive code, giving you another powerful option for how to approach programming problems.
8 个视频, 10 个阅读材料, 1 个练习测验
- Reading: Introduction to Recursion
- Reading: Reading Recursive Code
- Practice Quiz: Reading Recursion
- Reading: Principles of Writing Recursive Code
- 视频: Writing Factorial Recursively
- 视频: Translating Recursive Factorial to Code
- 视频: Writing Fibonacci Recursively
- 视频: Translate Recursive Fibonacci to Code
- Reading: Is Recursion Slow?
- 视频: Duplication of Computation in Fibonacci
- Reading: Assignment 21_read_rec1
- Reading: Tail Recursion
- 视频: Execution of the Tail Recursive Implementation of Factorial
- Reading: Equivalence of Tail Recursion and Iteration
- Reading: Mutual Recursion
- 视频: Execution of Mutually Recursive isOdd and isEven
- Reading: Assignments 22_tests_power and 23_power_rec
- Reading: (Optional) Recursion Theory
第 5 周
Project
Now that you have learned about pointers and arrays, you will build on the code you wrote in Course 2 to build a deck of cards and evaluate a poker hand. In the next course, you will complete the program to calculate poker odds with a Monte Carlo simulation.
5 个阅读材料
- Reading: If you did not take Course 2...
- Reading: Building a Deck
- Reading: Assignment c3prj1_deck
- Reading: Evaluating a Hand
- Reading: Assignment c3prj2_eval
已评分: Practice Programming Environment
常见问题解答
运作方式
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制作方
Duke University
Duke University has about 13,000 undergraduate and graduate students and a world-class faculty helping to expand the frontiers of knowledge. The university has a strong commitment to applying knowledge in service to society, both near its North Carolina campus and around the world.
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评分和审阅
Wow! I took my first course that was heavy in C in college and I remember it being challenging. Eight years later, I have to say that C is still a challenging topic! I very much enjoying refreshing knowledge that I learned a very long time ago and had forgotten. I'm also pretty pleased with how much better I am at emacs :) I especially liked the clear introduction of how a program is actually organized in memory. Tail recursion explanation was very interesting as well. One thing that I would love to see improved is some of the testing exercises -- it is easy to get stuck and have several days of progress ruined without really learning anything new. This is small but extremely frustrating. Overall I really appreciate this course and think it was immensely helpful for me in my continuing studies. Very well organized and found the pace of the lectures excellent. Very happy and excited, thanks!
End of course project was challenging and fun. Lots of opportunity to learn how to debug memory issues with valgrind.