124 lines
3.3 KiB
Markdown
124 lines
3.3 KiB
Markdown
---LESSON_INFO---
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**Learning Objectives:**
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- Understand basic syntax and structure of C programs
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- Learn how to write your first C program
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- Familiarize with the compilation process
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**Prerequisites:**
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- Basic understanding of programming concepts
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- Familiarity with command line interface (optional)
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---END_LESSON_INFO---
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# Introduction to C Programming
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C is a general-purpose, procedural computer programming language supporting structured programming, lexical variable scope, and recursion, with a static type system. By design, C provides constructs that map efficiently to typical machine instructions, which has made it one of the most widely used programming languages.
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# Your First C Program Exercise
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Write a C program that prints your name and your favorite programming language to the console.
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**Requirements:**
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- Use `printf` to output your name
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- Include your favorite programming language in the output
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- Make sure to include the standard input/output library
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- The output should be in the format: "Hello, I am [Your Name] and my favorite programming language is [Language]"
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**Example Output:**
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```
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Hello, I am John and my favorite programming language is C
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```
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Try writing your solution in the code editor below!
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## History of C
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C was originally developed at Bell Labs by Dennis Ritchie between 1972 and 1973. It was created to re-implement the Unix operating system, which was previously coded in assembly language.
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## Basic Structure of a C Program
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A basic C program consists of:
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- Preprocessor directives
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- Function definitions
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- Variable declarations
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- Comments
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- Executable statements
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Here's a simple example:
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```c
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#include <stdio.h>
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int main() {
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printf("Hello, World!\n");
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return 0;
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}
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```
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## Key Concepts
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1. **Variables**: Storage locations with a name and data type
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2. **Data Types**: Define what kind of value a variable can hold
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3. **Functions**: Blocks of code that perform specific tasks
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4. **Control Structures**: Direct the flow of program execution
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---
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## Common Data Types in C
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| Type | Description | Example |
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|------|-------------|---------|
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| int | Integer values | `int age = 25;` |
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| float | Floating-point numbers | `float price = 19.99;` |
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| char | Single character | `char grade = 'A';` |
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| double | Double precision float | `double pi = 3.14159;` |
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---EXERCISE---
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# Your First C Program Exercise
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Write a C program that prints your name and your favorite programming language to the console.
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**Requirements:**
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- Use `printf` to output your name
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- Include your favorite programming language in the output
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- Make sure to include the standard input/output library
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- The output should be in the format: "Hello, I am [Your Name] and my favorite programming language is [Language]"
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**Expected Output:**
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```
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Hello, I am John and my favorite programming language is C
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```
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Try writing your solution in the code editor below!
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---EXPECTED_OUTPUT---
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Hello, I am John and my favorite programming language is C
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---END_EXPECTED_OUTPUT---
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---INITIAL_CODE---
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#include <stdio.h>
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int main() {
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// Write your code here
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printf("Hello, World!\\n");
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return 0;
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}
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---END_INITIAL_CODE---
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---SOLUTION_CODE---
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#include <stdio.h>
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int main() {
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// Write your code here
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printf("Hello, I am John and my favorite programming language is C\n");
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return 0;
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}
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---END_SOLUTION_CODE---
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-
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