These are group of problem sets i did as a part of my CS50x 2015

actually this is fall 2014 in harvard but it's offered in 2015 at edx.org

Problem Set 0: Scratch
Problem Set 1: C
Problem Set 2: Crypto
Problem Set 3: Breakout
Problem Set 4: Forensics
Problem Set 5: Mispellings
Problem Set 6: Web Server
Problem Set 7: C$50 Finance
Problem Set 8: Mashup

Problem Set o : Scratch

Problem Set 1,2,3 and 4 contains a Hacker Edition aka Do it if you have Brains to do edition that was optional for grading

Each problem Set folder have it's own .pdf file that contains full details of each problem set

some of problem set also contains PsetExtra Folder that folder is just stuff i used while solving pset or stuff i used to test the problem set