CS50 2020 - Lecture 2 - Arrays

David J. Malan introduces compilation, debugging, memory layout, arrays, and strings in C.

TABLE OF CONTENTS 00:00:00 - Introduction 00:00:49 - clang 00:10:08 - Compiling 00:22:51 - Debugging 00:25:06 - printf 00:30:45 - debug50 00:47:55 - Duck Debugging 00:50:08 - Memory 00:56:09 - scores 01:03:45 - Arrays 01:25:39 - ASCII 01:29:28 - Strings 01:43:25 - strlen 01:47:54 - Arrays of Strings 01:51:56 - toupper 02:00:41 - manual.cs50.io 02:01:32 - Command-Line Arguments 02:10:43 - Exit Status 02:14:46 - Readability 02:16:27 - Cryptography *** This is CS50, Harvard University's introduction to the intellectual enterprises of computer science and the art of programming. *** HOW TO SUBSCRIBE youtube.com/subscription_center?add_user=cs50tv HOW TO TAKE CS50 edX: cs50.edx.org/ Harvard Extension School: cs50.harvard.edu/extension Harvard Summer School: cs50.harvard.edu/summer OpenCourseWare: cs50.harvard.edu/x HOW TO JOIN CS50 COMMUNITIES Discord: discord.gg/T8QZqRx Ed: cs50.harvard.edu/x/ed Facebook Group: facebook.com/groups/cs50/ Faceboook Page: facebook.com/cs50/ GitHub: github.com/cs50 Gitter: gitter.im/cs50/x Instagram: instagram.com/cs50 LinkedIn Group: linkedin.com/groups/7437240/ LinkedIn Page: linkedin.com/school/cs50/ Reddit: reddit.com/r/cs50/ Quora: quora.com/topic/CS50 Slack: cs50.edx.org/slack Snapchat: snapchat.com/add/cs50 Twitter: twitter.com/cs50 YouTube: youtube.com/cs50 HOW TO FOLLOW DAVID J. MALAN Facebook: facebook.com/dmalan GitHub: github.com/dmalan Instagram: instagram.com/davidjmalan/ LinkedIn: linkedin.com/in/malan/ Quora: quora.com/profile/David-J-Malan Twitter: twitter.com/davidjmalan *** CS50 SHOP cs50.harvardshop.com/ *** LICENSE CC BY-NC-SA 4.0 Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International Public License creativecommons.org/licenses/by-nc-sa/4.0/ David J. Malan cs.harvard.edu/malan malan@harvard.edu