Problem Set 2: Arrays

Complete these three tasks in order:

Each task must be written in standard C and compile in your local development environment. Use character arrays for text and functions from the standard C library; do not use course-specific C libraries.

Folder structure

Organize your source files as follows:

cs105-week-2/
├── scrabble/
│   └── scrabble.c
├── caesar/
│   └── caesar.c
└── substitution/
    └── substitution.c

Do not include compiled executables in your submission.

Before you submit

Check that:

all three source files are present;
each program compiles without warnings or errors;
you tested the normal inputs and edge cases listed on each task page;
your programs use standard C character arrays rather than the CS50 string type;
indentation and variable names are consistent; and
each program contains brief comments where the logic is not obvious.

How to submit

Create a public GitHub repository named cs105-week-2.
Upload or push the three folders shown above to the repository.
Open the repository link in a private/incognito browser window to confirm that it is publicly accessible.
Email the repository link to odina.kholiqov@dii.tj.
Use the subject CS105 Week 2 — Your full name and include your full name in the email.

Do not attach a ZIP file or compiled executables.

Return to the Week 2 notes.