Some notes for cp training.

E689120's "A way to pratice competitive programming":
https://codeforces.com/blog/entry/66909;
https://drive.google.com/file/d/1J2x8pIYQ3MXANgvzOgBciWd3d79j_Exa/view

A list of competitive programming related things:

• https://codeforces.com/
• https://atcoder.jp/
• https://vjudge.net/
• http://usaco.org/
• http://hsin.hr/coci/
• https://szkopul.edu.pl/
• http://orac.amt.edu.au/cgi-bin/train/hub.pl
• https://dmoj.ca/
• http://acm.timus.ru/
• https://www.acmicpc.net/
• https://www.ioi-jp.org/
• https://csacademy.com/
• https://www.spoj.com/
• https://oj.uz/
• https://open.kattis.com/
• https://wcipeg.com/main
• http://judge.u-aizu.ac.jp/onlinejudge/
• http://noi.ac/
• http://uoj.ac/
• https://www.hackerrank.com/
• https://www.codechef.com/
• http://ceoi.inf.elte.hu/
• Baltic Olympiad in Informatics
• Balkan Olympiad in Informatics

Learning sites:

• http://cp-algorithms.com/

Blogs:

• https://codeforces.com/blog/entry/60442 Rolling hash
• https://codeforces.com/blog/entry/57282 List of cp tutorials
• https://codeforces.com/blog/entry/48417 General tricks
• https://codeforces.com/blog/entry/70178 On problem setting
• https://codeforces.com/blog/entry/70740 Min-cost max-flow complexity
• https://codeforces.com/blog/entry/62359 "Looking for a challenge" problems
• https://codeforces.com/blog/entry/52341 References for "the largest-area inscribed triangle in a convex polygon" algorithm
• https://codeforces.com/blog/entry/15547 Catching silly mistakes with GCC
• https://codeforces.com/blog/entry/69186 Codeforces's gym contests with editorials

Math sites:

• https://projecteuler.net/

Random sites:

• http://mxwell.github.io/draw-graph/ (csacademy.com also has a similar application but with interaction)

Communities:

• https://codeforces.com/blog/entry/52778 Biggest Discord server

Command:

find / -perm +111 -type f -exec sh -c 'jtool2 -L "{}" 2>/dev/null | grep SidecarCore && echo "SidecarCore matched at {}"' \; > ~/sidecarfind.txt

Found files:

SidecarCore matched at /usr/libexec/SidecarDisplayAgent
SidecarCore matched at /usr/libexec/SidecarRelay
SidecarCore matched at /System/Library/PreferencePanes/Sidecar.prefPane/Contents/MacOS/Sidecar
SidecarCore matched at /System/Library/PreferencePanes/Sidecar.prefPane/Contents/Resources/sidecarPrefCheck
SidecarCore matched at /System/Library/PrivateFrameworks/AnnotationKit.framework/Versions/A/AnnotationKit
SidecarCore matched at /System/Library/PrivateFrameworks/SidecarCore.framework/Versions/A/XPCServices/DisplayMarkup.xpc/Contents/MacOS/DisplayMarkup
SidecarCore matched at /System/Library/PrivateFrameworks/ReminderKitUI.framework/Versions/A/XPCServices/com.apple.ReminderKitUI.ReminderCreationViewService.xpc/Contents/MacOS/com.apple.ReminderKitUI.ReminderCreationViewService
SidecarCore matched at /System/Library/PrivateFrameworks/MarkupUI.framework/Versions/A/MarkupUI
SidecarCore matched at /System/Library/PrivateFrameworks/SidecarUI.framework/Versions/A/SidecarUI
SidecarCore matched at /System/Applications/Notes.app/Contents/MacOS/Notes
SidecarCore matched at /System/Applications/Mail.app/Contents/MacOS/Mail
SidecarCore matched at /System/Applications/Reminders.app/Contents/MacOS/Reminders
SidecarCore matched at /System/Applications/Reminders.app/Contents/PlugIns/RemindersSharingExtension.appex/Contents/MacOS/RemindersSharingExtension

MacBookPro12,X and older:

• ALS and Keyboard Backlight is controlled by SMC
• ALS keys: AL, ALI0, ALI1, ALRV, ALV0, ALV1
• Keyboard Backlight keys: LKSB, LKSS, MSLD
• See AsusSMC

Newer MacBook:

• On Macbook without Touchbar, ALS sensor is called ALS0. IOService is AppleLMUController.
• On Macbook with Touchbar, ALS sensor is connected via USB. IOService is AppleUSBALSService (com.apple.driver.AppleHIDALSService)
• Keyboard Backlight seems to be controlled by the keyboard itself. IOService is AppleHIDKeyboardEventDriverV2. It has a property named KeyboardBacklightBrightness
• There's a boolean property KeyboardBacklight in IOResources.
• AppleHIDKeyboardEventDriverV2 location: /S/L/E/AppleTopCase.kext/Contents/PlugIns/AppleTopCaseDriverV2.kext
• AppleUSBALSService location: /S/L/E/AppleHIDALSService.kext

An interactive deep learning book with code, math, and discussions

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