Kirk Schafer

Kirk Schafer

16
21758 XP

My Courses

Python 3 Tutorial

887 XP

HTML Fundamentals

417 XP

CSS Fundamentals

392 XP

C++ Tutorial

392 XP

JavaScript Tutorial

364 XP

SQL Fundamentals

206 XP

jQuery Tutorial

95 XP

Ruby Tutorial

37 XP

Swift 4 Fundamentals

10 XP

Java Tutorial

0 XP

PHP Tutorial

0 XP


My Codes

c
unions : internal float bytes : Q&A

Last Modified: 01/18/2019 02:21:39

21

py
Timeout acquire (server)

Last Modified: 01/05/2019 06:20:28

8

py
Timeout acquire (client)

Last Modified: 01/05/2019 06:16:38

6

web
Spin gradient [+ setInterval benchmark]

Last Modified: 01/03/2019 03:40:07

5

web
BCD (binary-coded-decimal) clock

Last Modified: 01/01/2019 19:47:48

9

web
A couple binding tricks

Last Modified: 12/26/2018 02:20:32

4

web
Polling: worse (event-driven: better)

Last Modified: 12/25/2018 01:39:35

2

web
Variable-velocity slider

Last Modified: 12/25/2018 01:28:41

22

web
Download files from memory (txt + zip)

Last Modified: 12/21/2018 06:10:59

7

py
Immortal object (PEP 0442 : Resurrection)

Last Modified: 12/20/2018 17:27:13

3

py
cringy variable passing

Last Modified: 12/17/2018 23:17:52

3

web
websocket fight

Last Modified: 12/06/2018 23:26:13

12

py
"switch" for Python (v2; simpler)

Last Modified: 12/05/2018 01:10:03

6

web
Explore float64 / double (Internals)

Last Modified: 12/03/2018 16:58:42

46

web
YouTube Player Javascript API

Last Modified: 11/30/2018 01:48:45

42

py
Self-modifying code [new bytecode at runtime]

Last Modified: 11/25/2018 03:24:34

9

web
Speech synthesis (custom msg, random voice, xkcd)

Last Modified: 11/21/2018 19:01:02

7

py
help() without Time Limit Exceeded

Last Modified: 11/05/2018 18:59:39

7

web
Fibonacci 'JS generator', custom seeds (Lucas #'s), phi convergence

Last Modified: 10/31/2018 15:32:50

19

web
Fibonacci 'JS iterable'

Last Modified: 10/30/2018 03:47:28

13

c
Type timing: fast32, normal and least32

Last Modified: 10/30/2018 03:44:49

6

py
Terrible way to say ("HI")

Last Modified: 10/29/2018 02:17:12

24

web
FAST background threads (no imports)

Last Modified: 10/27/2018 00:39:13

21

web
Rnd color noise + accelerator datatype [added CPU profiler]

Last Modified: 10/21/2018 18:21:28

22

py
Gameloop with Pythonic quit

Last Modified: 10/17/2018 04:32:26

12

web
Spiral+accuracy: Math, BigNumber, Decimal, NumericJS

Last Modified: 10/13/2018 16:34:39

7

cpp
Can you fix this? Is 1-line utf16 possible?

Last Modified: 10/05/2018 05:38:16

3

cpp
Confused by earlier errors, bailing out [Silly preproc tricks]

Last Modified: 10/05/2018 03:03:27

2

c
Internal compiler error, line -1 [Silly preproc tricks]

Last Modified: 10/05/2018 03:02:54

1

web
preventDefault, bubbling + capturing

Last Modified: 09/29/2018 19:26:05

10

py
TabError: Inconsistent use of tabs and spaces

Last Modified: 09/28/2018 05:40:11

6

web
Disable Inspector, View Source, right-click, debug breakpoint

Last Modified: 09/27/2018 22:09:11

7

c
[c] Enable unicode (UTF-16) in app [shortened + notes]

Last Modified: 09/27/2018 13:49:19

42

py
Server info stuff

Last Modified: 09/26/2018 16:13:03

19

web
SoloLearn logo imagemap [shows debug]

Last Modified: 09/26/2018 13:55:02

23

c
What's wrong...? [Play code]

Last Modified: 09/26/2018 05:33:29

4

web
Restore after document.write()

Last Modified: 09/22/2018 01:58:23

6

c
Sololearn C version

Last Modified: 09/08/2018 18:25:23

11

cpp
SoloLearn c++ version

Last Modified: 09/08/2018 18:24:33

30

py
Optimize? [see Q&A link]

Last Modified: 09/05/2018 02:20:04

7

py
How many balls? EmojiInt / __rtruediv override

Last Modified: 09/04/2018 05:46:51

3

py
Import custom module

Last Modified: 09/03/2018 04:27:09

7

py
working POST demo (urllib)

Last Modified: 08/29/2018 01:31:41

7

cs
Socket connection time query

Last Modified: 08/21/2018 17:33:35

8

web
CodePen -> SoloLearn [for Q&A 1459888]

Last Modified: 08/18/2018 04:51:48

3

cpp
[c++] Enable unicode (UTF-16) in app

Last Modified: 08/15/2018 15:11:33

52

web
Rolling Shutter Effect + extras

Last Modified: 08/11/2018 03:18:16

38

web
Ball overlay split animation [worker]

Last Modified: 07/26/2018 17:00:00

31

php
PHP wrapper / can-take-input? infos

Last Modified: 07/24/2018 00:07:04

8

py
ipaddress module (v4, v6)

Last Modified: 07/19/2018 06:04:29

13

py
List SoloLearn modules (updated)

Last Modified: 07/18/2018 16:22:47

87

Why use interfaces?

Last Modified: 07/12/2018 05:15:32

7

py
[Python] Enable unicode in app (UTF-16: colors, shapes, special characters)

Last Modified: 07/02/2018 16:36:00

183

py
Decorate an internal function (make "print" self-time, self-repeat)

Last Modified: 07/02/2018 03:32:44

7

web
Strobe light (v1.5 : timer overhaul)

Last Modified: 06/30/2018 05:53:52

27

web
File exists (HEAD) request with JS

Last Modified: 06/30/2018 02:51:43

12

rb
[Ruby] Enable unicode (UTF-16) in app

Last Modified: 06/28/2018 20:58:30

33

kt
[Kotlin] Enable unicode (UTF-16) in app

Last Modified: 06/28/2018 20:58:28

29

[Java] Enable unicode (UTF-16) in app

Last Modified: 06/28/2018 20:58:27

47

cs
[C#] Enable unicode (UTF-16) in app

Last Modified: 06/28/2018 20:58:26

35

web
Runaway regex: catastrophic backtracking (safe threads) [refactor]

Last Modified: 06/28/2018 02:05:03

16

web
Disable/null console (short/silent + longer/demo versions)

Last Modified: 06/27/2018 21:02:04

13

py
[challenge] print -> puts/printf (ctypes) override

Last Modified: 06/27/2018 15:47:08

19

web
Orientation API [lagfix] (portrait + landscape + lock, resizes + soft keyboard)

Last Modified: 06/27/2018 05:55:00

7

web
[ES6] Sensors live streams [ acceleration gravity rotation ]

Last Modified: 06/24/2018 21:04:29

12

web
Sensors live streams [ acceleration gravity rotation ]

Last Modified: 06/24/2018 21:03:24

25

php
php server: create image / list extensions [bugfix]

Last Modified: 06/24/2018 02:26:58

14

py
AST and a little mischief [Abstract Syntax Tree]

Last Modified: 06/22/2018 23:59:04

7

web
JS: Python-like assignment + swap (a,b = b,a)

Last Modified: 06/22/2018 05:50:06

8

web
Erasable radio buttons

Last Modified: 06/16/2018 05:19:09

5

web
Mix ES5 / ES6 in same file

Last Modified: 06/05/2018 01:35:08

8

web
Truly random (not a PRNG) [ES5/ES6 fix]

Last Modified: 06/04/2018 23:09:35

15

py
Generic Internet file retriever (0.3 beta)

Last Modified: 05/30/2018 06:21:09

13

web
(US ONLY) Monopoly rare/semi-rare fast code checker [expires 2018-05-29]

Last Modified: 05/29/2018 01:25:01

9

web
animated yin-yang - 1 div / no js

Last Modified: 05/25/2018 03:47:32

36

cpp
DOS special device file (illegal replacement target)

Last Modified: 05/24/2018 16:26:32

16

web
Dump image EXIF metadata (gps, camera, aperature, flash, shutter, resolution, ...)

Last Modified: 05/24/2018 05:22:50

4

py
Unicode FizzBuzz [Python]

Last Modified: 05/23/2018 05:34:20

14

cpp
Custom code before/after main() [constructor / destructor]

Last Modified: 05/22/2018 22:43:52

2

web
var scope matters (access times: global vs local vs loop)

Last Modified: 05/20/2018 04:29:10

12

web
regl triangle (fix: old webviews) [WebGL]

Last Modified: 05/03/2018 06:10:11

29

web
Dark Knight/Batpod (Shepard Tone Illusion) [Audio] (bug check)

Last Modified: 05/01/2018 19:16:19

45

py
SoloLearn console type (I/O seen by codes)

Last Modified: 04/30/2018 05:11:03

8

py

7

py
bytecode + disassembly info [Python]

Last Modified: 04/23/2018 19:40:56

10

c
CPU-ID : let's query CPU info [bugfix: model/family]

Last Modified: 04/13/2018 01:21:28

13

cpp
SoloLearn compile number (in-memory + argv)

Last Modified: 04/11/2018 21:33:37

8

c
hexdump -C (small, wide, blocks modes)

Last Modified: 04/07/2018 17:26:16

10

c
prints forever (no loop)

Last Modified: 04/04/2018 17:27:58

28

c
goto by fatal signal (FPE 1000x for challenge)

Last Modified: 04/04/2018 04:36:10

8

py
HTTP / CORS check (HEAD/OPTIONS/GET) +https, virtualhost

Last Modified: 04/02/2018 01:16:35

16

py
Random() coprimes == pi ?! + video

Last Modified: 03/30/2018 05:18:24

5

py
Numpy vs Python speed (works; +better)

Last Modified: 03/30/2018 03:50:39

19

cpp
booleans set to 1 on ++? (below c++17 only)

Last Modified: 03/30/2018 02:33:38

7

cpp
Newlines faster than << endl

Last Modified: 03/30/2018 00:29:25

17

kernel timer granularity (15.6 ms)

Last Modified: 03/29/2018 23:30:54

9

web
Code/File difference utility (+URL double-barrel autoload)

Last Modified: 03/29/2018 02:46:24

12

py
Various sysinfos

Last Modified: 03/27/2018 21:25:05

6

web
Cipher Analyzer (Vigenère/Caesar/Shift/Vigenere)

Last Modified: 03/16/2018 05:31:27

24

web
Wooo! [audio demo] (bugfixes)

Last Modified: 03/10/2018 02:16:59

24

py
Console 3-day weather (Extraction: 4 columns to 1 long vertical)

Last Modified: 01/22/2018 22:58:49

15

c
Decimal to binary fraction (base 10 -> base 2)

Last Modified: 01/18/2018 00:41:11

8

web
Advanced Graphing Calculator (Desmos API)

Last Modified: 01/09/2018 23:41:06

26

web
Archimedian spiral length by steps

Last Modified: 01/03/2018 06:45:46

17

web
Sortof a spirograph

Last Modified: 01/03/2018 06:36:10

11

web
Self-modifying JS replacement

Last Modified: 12/31/2017 02:02:57

11

web
Canvas: resize "zoom" (CSS vs HTML dimensions)

Last Modified: 12/28/2017 02:06:54

38

c
scanf works...but remember the NULL byte

Last Modified: 12/08/2017 14:55:52

10

web
The Sun...now-ish [all satellite sensors]

Last Modified: 12/02/2017 04:43:32

35

char matrix permutations (optional repeat)

Last Modified: 11/30/2017 19:10:54

6

web
Self code index

Last Modified: 11/28/2017 03:26:25

8

py
UUencode / UUdecode (newsgroups, email)

Last Modified: 11/27/2017 15:56:11

6

py
readline vs readlines (Q&A)

Last Modified: 11/27/2017 15:37:31

8

web
StarWars Imperial March [audio ~ haptic sync]

Last Modified: 11/24/2017 01:17:27

12

web
Check AnimationFrame rate bug

Last Modified: 11/22/2017 21:08:27

20

web
Image-event-driven photo scan, calendar picker

Last Modified: 11/17/2017 14:26:10

3

web
Modulo bias in PRNG [PoC; cleaning up]

Last Modified: 11/13/2017 04:45:01

9

py
Egyptian multiply trick : How computers do it

Last Modified: 11/09/2017 04:25:30

8

py
New matrix multiply operator @ vs .dot()

Last Modified: 11/06/2017 23:28:33

14

web
NaN 'gotcha'

Last Modified: 11/06/2017 15:42:03

10

web
'Let' vs 'var' : fix for transitional (JS/ES6)

Last Modified: 11/04/2017 05:11:05

24

cpp
Pythonic string repeat (operator*)

Last Modified: 11/03/2017 13:46:07

11

py
Divide numbers by looping

Last Modified: 10/31/2017 02:26:42

5

web
Secret challenge answer validator [standalone]

Last Modified: 10/27/2017 05:18:43

5

web
Secure passwords + Secret challenge answer validator

Last Modified: 10/26/2017 20:43:02

4

py
Euclidian distance via collections:Counter

Last Modified: 10/24/2017 03:04:28

8

py
A Python "program" program

Last Modified: 10/22/2017 00:14:49

7

py
Event tracing : call(), return, line, etc.

Last Modified: 10/14/2017 04:20:10

5

py
Garbage collector infos

Last Modified: 10/13/2017 05:44:08

10

web
Zap 0's "no test" trick (Array.from() fix) [challenge]

Last Modified: 10/12/2017 17:57:42

4

cpp
". " vs '. ' (integer byte order)

Last Modified: 10/12/2017 04:24:58

5

py
IPv4: validate by behaviors, not plain values

Last Modified: 10/05/2017 23:45:59

5

php
Working POST demo

Last Modified: 10/05/2017 20:02:48

16

py
'Maze run' (saves state!) [v0.1 alpha]

Last Modified: 10/05/2017 04:59:03

14

web
Scatterplot [WebGL]

Last Modified: 10/04/2017 20:13:02

22

py
Image detection (library demo only)

Last Modified: 10/03/2017 00:38:17

6

web
Background thread messaging

Last Modified: 09/28/2017 06:58:32

5

web
Local storage - works [IndexedDB PoC]

Last Modified: 09/23/2017 12:25:29

3

web
Image loader object [sdcard to canvas]

Last Modified: 09/20/2017 05:56:32

2

web
class inheritence: svg path injection

Last Modified: 09/20/2017 03:47:01

8

cpp
Single precision : digit 8 microscope

Last Modified: 09/19/2017 02:38:23

5

cpp
Hello World [obscure]

Last Modified: 09/18/2017 23:06:16

13

py
£ symbol encoding

Last Modified: 09/17/2017 19:19:21

8

web
CSS custom props: $x vs. var(--x)

Last Modified: 09/17/2017 01:59:22

5

web
Browser/DOM inspector

Last Modified: 09/15/2017 19:45:47

21

web
vibrate() now requires user intervention

Last Modified: 09/15/2017 18:44:06

10

cpp
Add without + (use printf wisely)

Last Modified: 09/10/2017 18:48:45

6

web
iframe postMessage + error cancel (works)

Last Modified: 09/07/2017 08:33:32

1

py
Disallowed operators (6 alt ways) [challenge]

Last Modified: 08/29/2017 04:06:09

8

py
Single-hop flights, verbose [challenge]

Last Modified: 08/26/2017 20:11:40

7

py
Single-hop flights, 1-liner [challenge]

Last Modified: 08/26/2017 20:11:35

3

py
Identify server (1 liners)

Last Modified: 08/17/2017 19:12:25

4

web
Word cloud for RFC-1945:HTTP

Last Modified: 08/16/2017 23:53:36

8

py
this...is a joke

Last Modified: 08/16/2017 00:17:53

17

cpp
Quarks: pair/triple/quads : parallel bitcount + assembly msb [challenge]

Last Modified: 08/15/2017 02:46:10

9

cpp
Quarks [algorithm source] : Parallel bitcount + assembly MSB [challenge]

Last Modified: 08/15/2017 01:35:01

12

cpp
Why is this printing... (detail)

Last Modified: 08/10/2017 21:08:41

6

py
Native text color: no ANSI required

Last Modified: 08/09/2017 16:16:45

8

py
Matrix ring rotate [HackerRank]

Last Modified: 08/06/2017 17:36:35

5

web
Image embedded in HTML (no download)

Last Modified: 08/06/2017 16:27:13

22

cpp
Unusual termination : thrown exception [Q&A]

Last Modified: 08/06/2017 04:49:39

5

cpp
strfuncs 1-liner challenge [strcpy, strcmp, strcat -> memcpy, memcmp, ternary]

Last Modified: 08/05/2017 20:36:02

9

py
~Rotate challenge [4-line "utility" demo]

Last Modified: 08/04/2017 12:35:18

5

cpp
Files gotcha (EOF flag vs ASCII 26)

Last Modified: 08/04/2017 05:18:32

6

py
(is vs ==) using memory address

Last Modified: 08/03/2017 06:11:46

11

py
Largest file/edge crash tests (seek, close)

Last Modified: 08/03/2017 05:17:39

8

web
Which <li> clicked (from <ol>)

Last Modified: 08/03/2017 04:38:27

4

web
Waveforms, nodes, analyzer [audio demo]

Last Modified: 07/29/2017 00:12:30

10

web
Battery info

Last Modified: 07/27/2017 00:36:54

23

web
phpinfo (ok; no TLE or Playground bug)

Last Modified: 07/26/2017 05:04:18

7

cpp
anoneon-Q&A related

Last Modified: 07/26/2017 02:32:50

4

web
ident clicked button - this & custom data values - 4Q

Last Modified: 07/24/2017 14:46:52

6

php
phpinfo piece extractor

Last Modified: 07/24/2017 04:55:35

5

cs
Predict Random (Microsoft .NET)

Last Modified: 07/22/2017 19:15:23

16

py
Dump random memory

Last Modified: 07/21/2017 01:30:39

11

web
Function/Boolean statics (no vars)

Last Modified: 07/21/2017 01:02:30

5

web
An ideal computing task (data entry -> added value)

Last Modified: 07/19/2017 20:09:05

5

py
Function overloading

Last Modified: 07/19/2017 04:38:05

6

py
Is workstation locked?

Last Modified: 07/19/2017 04:31:09

4

cpp
Text graph for sin()

Last Modified: 07/18/2017 00:20:06

14

cpp
Text graph for circle (calculated)

Last Modified: 07/18/2017 00:19:58

17

web
Morse [audio demo]

Last Modified: 07/16/2017 05:22:06

8

cpp
c++ (vs Python) mod behavior with negs

Last Modified: 07/15/2017 21:43:08

11

py
Python (vs c++) mod behavior with negs

Last Modified: 07/15/2017 21:40:52

10

py
scan for "remove" (4Q)

Last Modified: 07/13/2017 21:26:08

3

py
Open sockets, pids, ports, state

Last Modified: 07/12/2017 04:35:49

9

py
Fibonacci -> phi (golden ratio)

Last Modified: 07/10/2017 22:03:32

12

py
Happy birthday fly-in

Last Modified: 07/10/2017 22:01:56

11

web
Something different [jsf*]

Last Modified: 07/10/2017 06:00:55

11

cpp
[challenge] getMin O(1) : ± stack [update]

Last Modified: 07/09/2017 14:21:11

7

web
Simple inheritence: 2d->3d coords

Last Modified: 07/08/2017 20:25:42

6

web
Colorful Area Rug (2D rotation)

Last Modified: 07/08/2017 03:54:45

17

web
CaptureTheFlag 3 [HackerRank]

Last Modified: 07/06/2017 05:57:13

3

web
CaptureTheFlag 2 [HackerRank]

Last Modified: 07/06/2017 05:57:08

1

web
rotates?

Last Modified: 07/06/2017 05:56:19

7

web
Countdown - no js counter

Last Modified: 07/06/2017 05:55:47

9

web
peerJS companion iframe

Last Modified: 07/06/2017 05:16:15

2

web
fn.length, finally weirdness

Last Modified: 07/06/2017 04:03:52

1

py
Print up to 512KB; no time limit exceeded

Last Modified: 07/06/2017 00:55:00

13

thread sleep time precision

Last Modified: 07/05/2017 23:40:09

0

web
Mutation-Fired 'Firefly' Text

Last Modified: 07/05/2017 23:08:21

20

cpp
funny/odd

Last Modified: 07/05/2017 14:44:51

2

web
hr breaks align nesting

Last Modified: 07/04/2017 03:48:07

0

web
debugging

Last Modified: 07/04/2017 03:40:11

0

web
mathbox 2

Last Modified: 07/04/2017 02:50:57

1

cpp
int_literal[ptr] (Silly c++ Tricks)

Last Modified: 07/03/2017 16:56:52

13

web
Trendlines: random + averages

Last Modified: 07/03/2017 02:08:34

7

py
recursive "in", neat short-circuit (4Q)

Last Modified: 07/02/2017 16:13:10

4

cpp
[challenge] getMin O(1) : + stack only

Last Modified: 07/01/2017 00:03:32

6

cpp
[challenge] getMin O(1) : ± stack

Last Modified: 07/01/2017 00:03:21

7

web
Hello Ring:no iframe + source [VPython]

Last Modified: 06/29/2017 19:01:50

12

web
[Python Web] Interactive Input

Last Modified: 06/28/2017 16:00:58

17

web
Your LAN IP address is...

Last Modified: 06/28/2017 05:52:53

6

web
Quick event dump (swipe) [bugfix]

Last Modified: 06/27/2017 00:12:58

8

cpp
c++ assembly (add + multiply) [asm]

Last Modified: 06/26/2017 16:57:30

11

web
Internet Relay Chat (irc)

Last Modified: 06/25/2017 21:57:44

13

py
Comms: stuffing keyboard

Last Modified: 06/24/2017 23:40:16

8

web
Speed Reader

Last Modified: 06/18/2017 14:51:15

21

web
Async csv download (promises; manual start)

Last Modified: 06/16/2017 03:25:03

12

cpp
Using gets() + stack canary [fixed a crash]

Last Modified: 06/15/2017 23:08:46

5

py
Read CSV, load database, query (CA real estate)

Last Modified: 06/15/2017 13:34:20

10

CharGen PRNG stats [oddeofreq 4QA]

Last Modified: 06/14/2017 22:36:13

3

py
Operator + str override (a couple Classes)

Last Modified: 06/14/2017 04:14:12

7

rb
ruby object id's (references)

Last Modified: 06/13/2017 04:57:02

5

web
SVG test suite (275 tests)

Last Modified: 06/11/2017 16:16:26

7

py
Speech recognition demo (PocketSphinx)

Last Modified: 06/10/2017 03:32:40

8

web
Tupper's Self-Referential Formula

Last Modified: 06/09/2017 16:07:49

8

web
alert() intercept / override

Last Modified: 06/09/2017 14:22:22

7

py
Read audio file + stats (live demo: AIFF)

Last Modified: 06/09/2017 05:41:24

9

py
Launch Android Intent (usage statistics)

Last Modified: 06/08/2017 19:20:15

7

web
Hello Ring:iframe + IDE [3D / VPython]

Last Modified: 06/07/2017 03:05:12

10

web
[Python Web] Turtle

Last Modified: 06/07/2017 03:04:56

51

web
4q-"What's the difference?" [form vars]

Last Modified: 06/06/2017 14:40:45

7

web
Counting w/CSS (+ pseudos + attr extraction)

Last Modified: 06/03/2017 17:47:02

14

py
Interactive input source

Last Modified: 06/02/2017 22:44:47

6

py
Everything's an object (+Java compare)

Last Modified: 06/02/2017 17:14:34

7

web
[Python Web] ANSI color XOR Cycle Map

Last Modified: 06/02/2017 06:27:01

5

php
Calendar; first day calc + localization

Last Modified: 06/02/2017 05:32:25

15

py
XOR flip/fold cycle map (condensed)

Last Modified: 06/02/2017 03:08:38

6

cpp
Uninitialized array after new()

Last Modified: 06/01/2017 22:26:41

9

cpp
Elements used, alt. magic number (fill_n or memset)

Last Modified: 06/01/2017 21:19:03

7

py
Top 9-word in RFC1945 (challenge)

Last Modified: 06/01/2017 15:26:28

11

web
GL Solar System (ported Mathbox demo)

Last Modified: 06/01/2017 15:15:33

5

py
Optimize side-channel (challenge)

Last Modified: 06/01/2017 13:32:16

5

web
Shadow DOM (Web components)

Last Modified: 06/01/2017 00:03:29

12

web
Swipe up/down to... (reload not for app)

Last Modified: 05/31/2017 23:41:32

9

web
4Q: fn(y){y+1}(++a)+a+a

Last Modified: 05/29/2017 04:46:26

8

web
Template literals [ES6 demo]

Last Modified: 05/29/2017 02:43:50

10

web
CubeRoot (by Long Division)

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7

web
Plasma (older webviews fix) [OpenGL]

Last Modified: 05/24/2017 01:24:35

9

web
Benchmark your mobile

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8

web
(US ONLY) Monopoly rare/semi-rare fast code checker

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9

web
Plasma (for updated WebViews) [OpenGL]

Last Modified: 05/20/2017 17:49:22

11

py
Adversarial password validator

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10

py
IPv4 extended validator

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10

web
Filling Ⓕⓞⓝⓣ background

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11

py
"while True" async breakout (throw up a timer)

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8

py
FTP demo - e.g., old games (idSoftware)

Last Modified: 05/17/2017 06:10:19

7

py
isAlt challenge: Binary Cheater

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10

py
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7

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7

web
3D function view [WebGL]

Last Modified: 05/15/2017 05:48:17

31

web
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Last Modified: 05/11/2017 03:11:27

6

web
SnakeCase challenge (RegEx)

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9

web
HexdumpCanvas

Last Modified: 05/05/2017 14:53:01

1

web
HexdumpPRE

Last Modified: 05/05/2017 03:26:19

2

web
hexdumpHTML

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1

web
upside down text

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1

web
Plug-n-Play Popup Error Console [demo]

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11

web
Plug-n-Play Popup Error Console [blank template]

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8

web
Javascript ErrConsole NEW/Easy

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cpp
decimal fraction -> any base (2 to 255)

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9

cpp
100! precision-loss weak detector

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13

cpp
0.21745... to binary decimal and back

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7

cpp
100! doesn't fit in a double

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13

py
Kuba did it better (for Ahri Fox)

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13

py
Where's the var? (Silly Python Tricks)

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7

py
Buffer swap split (Silly Python Tricks)

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13

py
Printless print (Silly Python Tricks)

Last Modified: 04/27/2017 01:01:19

12

py
Network interface MAC address (continues: starmap, zip)

Last Modified: 04/26/2017 23:56:27

7

py
Iterator trick (starmap + zip clustering)

Last Modified: 04/26/2017 23:56:27

11

py
Five ways to sum + performance timers

Last Modified: 04/26/2017 05:15:23

12

py
4Q: Nested List Challenge (Lium Goon)

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1

web
Peer to peer: works, with notes (PoC)

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9

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crypto

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0

web
emodjinn

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1

web
Date -> day of week (KeyValue method)

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9

py
Double-ended queues (deques/stacks)

Last Modified: 04/20/2017 23:44:45

12

cpp
packed struct

Last Modified: 04/19/2017 23:33:30

0

web
crashy

Last Modified: 04/17/2017 18:01:47

1

web
4J.G. - why negative

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1

cs
persistent value for jalisa abdulgani dalvi

Last Modified: 04/14/2017 19:10:58

0

web
calendar

Last Modified: 04/13/2017 19:47:00

7

web
css fiddling

Last Modified: 04/13/2017 17:23:15

0

web
4?: Animation crashes SLPG

Last Modified: 04/12/2017 17:15:27

0

Sleep precision

Last Modified: 04/11/2017 03:43:44

0

py
Spin

Last Modified: 04/10/2017 20:51:39

13

cpp
Float/Double precision demo

Last Modified: 04/08/2017 02:56:53

12

py
mazegen-charfiddle

Last Modified: 04/07/2017 19:03:43

0

web
Small/quick generator example

Last Modified: 04/07/2017 15:22:54

12

web
LoopPerformanceTests (a weird check)

Last Modified: 04/06/2017 22:40:22

0

cpp
floats/doubles/ints

Last Modified: 04/04/2017 21:08:36

0

web
fetch - replaces XHR/XMLHttpRequest

Last Modified: 04/04/2017 00:02:17

15

web
CSS "Adjacent Sibling" selector

Last Modified: 03/31/2017 21:31:20

14

cpp
ASCII lines

Last Modified: 03/31/2017 16:11:18

1

web
Javascript timer resolution

Last Modified: 03/28/2017 03:53:14

9

web
HBFeedback

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1

py
Hello <-(?)-> (in-memory gunzip)

Last Modified: 03/25/2017 23:34:40

12

php
Work/output: Thinking "server vs. client"

Last Modified: 03/25/2017 17:07:52

12

py
Memory available to Python (Win32 API)

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17

web
Blurry vs. sharp line (canvas)

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12

py
gzip-noiostring

Last Modified: 03/22/2017 03:52:55

0

web
Imported Open Font + Quote

Last Modified: 03/21/2017 16:54:00

19

py
'Maze run' generator (ported)

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9

web
Character dump: HTML-entity-type

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9

cpp
Hardware byte order (integers)

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7

cpp
neat-why doesn't it add up correctly?

Last Modified: 03/10/2017 23:07:16

0

cpp
Mysterious printf [SOLVED]

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7

py
Py: Persistent data SoloLearn (sheets db)

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11

py
Py: Persistent data HOME version (simpler!)

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7

py
pers-wk

Last Modified: 03/08/2017 21:30:42

0

py
wth2-2?

Last Modified: 03/08/2017 19:22:20

1

cpp
nobug

Last Modified: 03/08/2017 17:33:15

0

py
wth?

Last Modified: 03/08/2017 03:29:01

0

py
reverse

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0

web
unicode cookie

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0

cpp
WeirdCode: Duff'sDevice

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8

py
Python reference counts

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8

py
Cute True==1

Last Modified: 03/05/2017 00:26:33

0

web
SFOpenData Demo-broken

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0

py
[Time Trial] for Kuba Siekierzyński's Magic square verificators

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9

py
Python + sqlite3 (works here)

Last Modified: 03/02/2017 17:11:02

12

py
Multiprocessing (4 threads) in 6 codelines

Last Modified: 02/28/2017 21:11:26

11

py
straight *7 vs shift

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7

py
ahri_timer

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0

py
python_server_memory

Last Modified: 02/22/2017 01:30:20

0

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Practice SQL (browser or app)

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23

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tricky

Last Modified: 02/20/2017 21:50:51

0

py
eval-custom

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0

nudu

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0

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hw

Last Modified: 02/09/2017 23:58:13

0

web
setinterval test

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0

web
vididd

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0

cpp
try2

Last Modified: 02/08/2017 02:22:41

0

py
md5seed_fiddling

Last Modified: 02/08/2017 00:43:15

0

py
cplx0

Last Modified: 02/07/2017 18:12:20

0

py
Goodstein sequence

Last Modified: 02/07/2017 13:02:06

8

cpp
print5K

Last Modified: 02/02/2017 03:02:29

0

web
JS Error Console (OLD version snippet)

Last Modified: 01/31/2017 20:16:40

12

web
JS Error Console

Last Modified: 01/31/2017 05:21:03

1

cpp
Overflow

Last Modified: 01/29/2017 15:51:44

7

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JS Error Console (1 line)

Last Modified: 01/28/2017 01:41:14

2

py
Reverse : recursive ternary abuse

Last Modified: 01/28/2017 01:10:43

8

py
[shorter fork] Print your name in Symbols v1.6:fork [Bogdan Bogdanov]

Last Modified: 01/25/2017 17:01:52

11

py
Converter for Bogdon Bogdanov's "Print your name in Symbols v1.6"

Last Modified: 01/25/2017 17:01:38

10

cpp
malloc() magnitude test

Last Modified: 01/22/2017 13:25:00

10

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Javascript selfie (NO PERMS-Sample ONLY)

Last Modified: 01/13/2017 19:43:22

12

web
HTML5 (555 tests) inlined

Last Modified: 01/13/2017 14:47:56

36

web
HTML5 File stuff checks

Last Modified: 01/13/2017 13:26:29

0

web
HTML5 File API check

Last Modified: 01/13/2017 13:05:56

10

web
bounce_line - beta 1.3

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18

web
HTML5 local storage check

Last Modified: 01/12/2017 23:04:53

11

web
SQL in-browser

Last Modified: 01/11/2017 00:03:53

18

web
voxel test [WebGL]

Last Modified: 01/10/2017 13:14:53

12

web
quiz

Last Modified: 01/09/2017 22:45:59

0

web
mathbox - label

Last Modified: 01/09/2017 19:59:03

1

web
mathbox water

Last Modified: 01/09/2017 16:29:19

1

web
mathbox - solar system

Last Modified: 01/09/2017 01:51:53

0

web
mathbox colorcube

Last Modified: 01/09/2017 01:46:01

1

web
mathbox 1

Last Modified: 01/09/2017 01:21:52

0

web
bounce_line - beta 1.1

Last Modified: 01/08/2017 01:50:59

6

web
cssdeck forum answer

Last Modified: 12/05/2016 12:56:30

17

web
Browse/Search SoloLearn website inside the app

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12

py
Dif between global/local

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13


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