Problem Set 0
Intro input/output and basic string handling.
CS50P Problem Sets Home
Open a support page for each problem set. Each page includes official CS50 links, per-problem tabs, and an in-browser Python runner for practice.
Choose a Problem Set
Problem Set 1
Conditionals and simple program branching.
Problem Set 2
Loops, string checks, and dictionary basics.
Problem Set 3
More loops and text/data processing patterns.
Problem Set 4
Libraries and command-line argument practice.
Problem Set 5
Testing-focused problem set.
Problem Set 6
File I/O and additional command-line tools.
Problem Set 7
Regular expressions and validation patterns.
Problem Set 8
OOP and final core assignments before project.
Week 9 Final Project
Final project planning, requirements, and submission support.