> For the complete documentation index, see [llms.txt](https://42-guide.gitbook.io/42-guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://42-guide.gitbook.io/42-guide/piscine-life/rushes/rush00.md).

# Rush00

## **C Piscine - Rush 00**

#### **Introduction**

The **Rush 00** project is a team-based coding challenge at **42 School's C Piscine**, designed to test students' ability to write clean, structured, and efficient C programs. The goal is to create a **function that generates rectangles of different sizes** using ASCII characters, reinforcing fundamental C programming concepts such as functions, loops, and output formatting.

#### **Project Rules & Guidelines**

* Teams of 3 **students** are required.
* The **Moulinette** (automated grading system) checks your code with strict flags: `-Wall -Wextra -Werror`.
* The project **must be completed before the defense**, where you’ll present and explain your code.
* **Team collaboration** is crucial—everyone must understand the code, as defense grading is based on the weakest explanation.

#### **Objective**

Students must create a **function named `rush()`** that generates different **rectangle shapes** based on given dimensions (width `x` and height `y`). The rectangles should be printed using specific ASCII characters.

#### **Rush Variants & Expected Output**

Each **Rush (00 to 04)** has a slightly different pattern for drawing the rectangles:

1. **Rush 00** (Basic Rectangle)

   ```
   luaCopyEditrush(5, 3) →
   o---o
   |   |
   o---o
   ```
2. **Rush 01** (Diagonal Corners)

   ```c
   rush(5, 3) →
   /***\
   *   *
   \***/
   ```
3. **Rush 02** (Different Top & Bottom Borders)

   ```c
   rush(5, 3) →
   ABBBA
   B   B
   CBBBC
   ```
4. **Rush 03** (Symmetric Corners)

   ```c
   rush(5, 3) →
   ABBBC
   B   B
   ABBBC
   ```
5. **Rush 04** (Reversed Bottom Corners)

   ```c
   rush(5, 3) →
   ABBBC
   B   B
   CBBBA
   ```

#### **Implementation Details**

* The function **`rush(int x, int y)`** receives the rectangle dimensions as input and prints the pattern accordingly.
* The project only allows **basic functions** like `write()`.
* You need to create and submit the following files:
  * `main.c` (for testing)
  * `ft_putchar.c` (for character output)
  * `rush0X.c` (where "0X" is the corresponding rush number)

#### **Final Thoughts**

Rush 00 challenges students to work in teams, think logically, and implement structured C code with clear output formatting. This project serves as a **foundation for handling more complex programming problems** later in the C Piscine.


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