CS50x 2025 - Lecture 4 - Memory

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Pointers. Segmentation Faults. Dynamic Memory Allocation. Stack. Heap. Buffer Overflow. File I/O. Images.

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This is CS50, Harvard University's introduction to the intellectual enterprises of computer science and the art of programming.

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TABLE OF CONTENTS

00:00:00 - Introduction
00:01:15 - Pixel Art
00:06:54 - Hexadecimal
00:15:52 - Memory
00:18:44 - Pointers
00:35:16 - Strings
00:52:00 - Pointer Arithmetic
00:57:50 - Erratum
00:58:22 - String Comparison
01:08:43 - Copying and malloc
01:24:45 - Valgrind
01:31:29 - Garbage Values
01:35:48 - Pointer Fun with Blinky
01:38:43 - Swapping
01:56:30 - Overflow
02:01:24 - scanf
02:11:10 - File I/O

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David J. Malan
https://cs.harvard.edu/malan
[email protected]