CS50 Beta

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The standard edition of Problem Set 4 will move beyond C programming language basics, testing your knowledge of pointers, memory management, file i/o and structs.
1832 questions
5 asked this month, 77 this year
The problem set for Week 3 asks students to write code for a classic puzzle game in the C programming language.
1333 questions
33 asked this year
The problem set for Week 2 continues with the C programming language used in problem set 1.
1301 questions
25 asked this year
The problem set for Week 5 will challenge you to apply what you've learned about pointers, memory management, file i/o and structs, creating more complex data structures (such as Hash Tables or Tries)…
1270 questions
38 asked this year
The problem set for Week 1 introduces the C programming language.
1187 questions
40 asked this year
1039 questions
15 asked this month, 139 this year
recover.c, one of the assignments for Problem Set 4, will challenge you to search through the raw bytes of a camera's digital memory to recover a bunch of "deleted" JPEG images.
951 questions
37 asked this year
speller.c is one of the files that make up Problem Set 5, but it is already written by CS50 Staff and you may not alter it! Instead, you must implement your solution by altering three other component …
879 questions
33 asked this year
The problem set for Week 7
851 questions
8 asked this year
For problem set 7 (CS50 Finance)
744 questions
10 asked this year
Questions about using check50 to validate the output of your problem set solutions. When using this tag, please provide the command you used to run check50 and the full output of the program in the bo…
672 questions
30 asked this year
resize.c, one of the assignments in Problem Set 4, will require you to scale a bitmap image by a certain factor (making it 2, 3, or n times as large).
640 questions
607 questions
40 asked this year
509 questions
7 asked this month, 35 this year
Vigenere Cipher, one of the assignments in Problem Set 2. It's like Caesar Cipher, but with a twist.
495 questions
mario.c, one of the assignments for Problem Set 1, asks you to develop an algorithm to draw an ASCII art staircase similar to those seen in the classic Nintendo game.
489 questions
11 asked this year
437 questions
5 asked this year
Caesar Cipher, one of the assignments in Problem Set 2.
427 questions
3 asked this year
the first part of pset5, loading a dictionary into memory
420 questions
5 asked this year
Code using the python language.
359 questions
55 asked this year
354 questions
18 asked this year
greedy.c, one of the assignments in Problem Set 1, asks you to develop a "greedy algorithm" to calculate the minimum number of coins needed to make change, while demonstrating an understanding of floa…
281 questions
278 questions
274 questions
21 asked this year
Questions about server.c in pset6.
245 questions
229 questions
12 asked this year
223 questions
17 asked this year
Game of Fifteen, one of the assignments in Problem Set 3
205 questions
191 questions
189 questions
Tag for questions related to pset3, Breakout.
156 questions
153 questions
2 asked this year
152 questions
17 asked this year
149 questions
149 questions
12 asked this year
143 questions
6 asked this year
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