Rosetta Code: Popular Programming Languages

Generated: 2021-07-25T20:00:02

#CountName
11394Phix
21391Go
31374Julia
41358Raku
51353Nim
61311Perl
71290Wren
81269Python
91142C
101130Kotlin
111120REXX
121115Java
131060Racket
141051C++
151047J
161029Haskell
171025Ruby
181012Zkl
19978D
20975Tcl
21952Mathematica
22916Scala
23905Factor
24901Sidef
25893C sharp
26839FreeBASIC
27832PicoLisp
=832Rust
29830Ada
30802Lua
31751Ring
32728Common Lisp
33726JavaScript
34715F Sharp
35707AutoHotkey
36685ALGOL 68
37655Delphi
3863511l
=635Clojure
40620PureBasic
41617AWK
42607Wolfram Language
43596Unicon
44595OCaml
45594Fortran
46568BBC BASIC
47551PARI/GP
48544Forth
49538Swift
50537Icon
51532Pascal
52529Elixir
53519R
54512Jq
55509Erlang
56505Groovy
57498PowerShell
58473Seed7
59454PHP
60445Arturo
61430Prolog
62420XPL0
63409Maple
64405PL/I
65403VBA
66396Visual Basic .NET
67391AppleScript
68384MATLAB
69373Scheme
70371M2000 Interpreter
71348Liberty BASIC
72346BASIC
73340Quackery
74327Octave
75325Smalltalk
76324Objeck
77315Run BASIC
78313UNIX Shell
79310COBOL
80308Oforth
81306Bracmat
82304EchoLisp
83303VBScript
84287NetRexx
85284Standard ML
86281Oz
87272E
88260ALGOL W
89259Lasso
90244Elena
91237Euphoria
92232Yabasic
93226Crystal
94222APL
95221OoRexx
96220Stata
97218360 Assembly
98217CoffeeScript
99215ZX Spectrum Basic
100214Maxima
101211Batch File
103199Nanoquery
104198IS-BASIC
105196Ursala
106194Lingo
107192Lambdatalk
108188BaCon
109187ARM Assembly
110183ERRE
111182Gambas
112174Frink
113169Aime
=169Befunge
115165Modula-2
116161GAP
=161Objective-C
118157AArch64 Assembly
=157Eiffel
120156HicEst
121155TUSCRIPT
122153Fantom
123152Applesoft BASIC
124151BASIC256
125150Nemerle
=150Pike
127149Ol
128148Emacs Lisp
129146NewLISP
=146REBOL
131145MiniScript
132141TXR
133140K
134138Jsish
135132LiveCode
136126Slate
137125Dyalect
138124Modula-3
139122BCPL
140121ActionScript
=121SNOBOL4
=121TI-83 BASIC
143120Commodore BASIC
144119MAXScript
145118Cowgol
146117Phixmonti
147116Oberon-2
148115Red
=115Visual Basic
150112MUMPS
=112Ursa
152111EasyLang
=111Min
154110Mercury
155109SenseTalk
=109Vedit macro language
157108Fōrmulæ
=108Vala
159105Déjà Vu
160104Retro
161103DWScript
162100ACL2
=100Simula
16498Dart
16597AutoIt
16696Pop11
=96Processing
=96X86 Assembly
16995TI-89 BASIC
170948080 Assembly
=94Ceylon
17293Axe
=93Io
17492PostScript
17590FunL
176898th
=89Bc
=89Tailspin
17987Plain English
18086МК-61/52
18182M4
18279Langur
18378FutureBasic
=78PL/M
18577LFE
=77Raven
=77SQL
18876Dc
18975Logtalk
=75Sinclair ZX81 BASIC
19174Sather
19273Component Pascal
19371Excel
=71Locomotive Basic
=71QB64
196708086 Assembly
=70ABAP
=70Neko
19969Ela
=69XLISP
20168Brat
20266Burlesque
=66Scilab
20465LabVIEW
=65OxygenBasic
20664IDL
20763GW-BASIC
20862ColdFusion
=62Wart
21061Free Pascal
21160SequenceL
21259FALSE
=59SAS
21457PowerBASIC
21556FBSL
21654MAD
21753Haxe
=53OpenEdge/Progress
21951SPL
22050FOCAL
=50Metafont
22249Lang5
=49Rascal
22448DCL
=48Microsoft Small Basic
22647Caché ObjectScript
=47Toka
22846Inform 7
=46Klingphix
23045Joy
23143ALGOL 60
=43ATS
=43S-lang
=43Tiny BASIC
=43True BASIC
=43Wortel
=43XSLT
23842ALGOL-M
=42Harbour
=42HolyC
=42NS-HUBASIC
=42SQL PL
=42Sparkling
24441Aikido
=41Q
=41TorqueScript
=41Yorick
=41Zig
24940LOLCODE
=40RapidQ
=40UnixPipes
=40V
25339Apex
=39Brainf***
=39Sed
25638Chapel
=38Elm
=38Falcon
=38Lisaac
=38Processing Python mode
=38SETL
26237Babel
=37EDSAC order code
=37Futhark
26536GML
=36PL/SQL
=36Vim Script
268356502 Assembly
=35AmigaE
=35C Shell
=35Genie
=35Nial
=35SuperCollider
27434RLaB
27533WDTE
27632EGL
=32Gnuplot
=32I
=32Visual FoxPro
28031Fermat
28130Agena
=30GUISS
=30Huginn
=30Order
=30Qi
=30REALbasic
=30Smart BASIC
=30Zoea
=30Zonnon
29029Assembly
=29CMake
=29Hy
=29MIRC Scripting Language
=29SNUSP
=29Symsyn
=29XBasic
29728ECL
=28Hexiscript
=28LIL
=28Potion
30127Avail
=27Golfscript
=27Latitude
=27Limbo
=27PlainTeX
=27Zoea Visual
30726Clean
=26Clipper
=26Idris
=26MLite
=26Relation
=26Salmon
31325LLVM
=25TypeScript
31524Mirah
=24Robotic
=24SSEM
=24Scratch
=24Trith
32023Astro
=23Ioke
=23Lobster
=23ML/I
=23PHL
=23ProDOS
=23Verilog
=23Vlang
32822Beeswax
=22Furor
=22Klong
=22MIPS Assembly
=22ML
=22Suneido
33421Argile
=21Gosu
=21MiniZinc
=21Peloton
=21Pure
=21Shen
=21Wee Basic
34120Chef
=20Dragon
=20Fish
=20Self
34519ChucK
=19DBL
=19Pony
=19Verbexx
=19Whitespace
35018Fancy
=18Make
=18S-BASIC
=18XQuery
=18Z80 Assembly
355170815
=17Beads
=17Dylan
=17Efene
=17Friendly interactive shell
=17GFA Basic
=17MMIX
=17MOO
=17Transact-SQL
=17Xojo
36516Agda
=16Hoon
=16LSL
=16LaTeX
=16Object Pascal
=16Openscad
=16Spin
37215Arc
=15Gema
=15LSE64
=15Lucid
=15N/t/roff
=15SystemVerilog
37814Axiom
=14Dao
=14Ezhil
=14Inform 6
=14Isabelle
=14OOC
=14Pure Data
=14Transd
=14Unlambda
=14VAX Assembly
=14VHDL
38913Computer/zero Assembly
=13KonsolScript
=13Little
=13Picat
=13QBasic
=13SPAD
=13SmileBASIC
39612AmigaBASIC
=12ArnoldC
=12Brlcad
=12Clay
=12Egel
=12Es
=12Genyris
=12Golo
=12Halon
=12MontiLang
=12Never
=12OASYS Assembler
=12Panda
=12Piet
=12RPG
=12Shale
=12Vorpal
41311Arendelle
=11CLIPS
=11Coco
=11Curry
=11Frege
=11Gecho
=11GlovePIE
=11Integer BASIC
=11Onyx
=11SPARK
=11Shiny
=11Snobol
=11TMG
=11TSE SAL
42710App Inventor
=10Asymptote
=10Blz
=10Coq
=10EC
=10Elisa
=10Janet
=10LotusScript
=10Mathprog
=10Niue
=10Wrapl
=10Zoomscript
43994DOS Batch
=9Alore
=9Boo
=9Comal
=9Eero
=9Fortress
=9IWBASIC
=9Lily
=9Luck
=9Monte
=9Morfa
=9MySQL
=9NSIS
=9POV-Ray
=9Ra
=9SIMPOL
=9UTFool
45684D
=868000 Assembly
=86800 Assembly
=88051 Assembly
=8AsciiDots
=8B
=8Clio
=8Dylan.NET
=8Egison
=8Fan
=8GLSL
=8Glee
=8HQ9+
=8LC3 Assembly
=8LSE
=8Lhogho
=8MBS
=8NESL
=8NGS
=8Nit
=8PILOT
=8PIR
=8Pointless
=8SASL
=8TIScript
=8Visual Prolog
=8Yacas
4837AmbientTalk
=7Arbre
=7Blast
=7BootBASIC
=7C++/CLI
=7Cobra
=7Crack
=7FUZE BASIC
=7Intercal
=7JCL
=7Kite
=7Nix
=7Purity
=7Quite BASIC
=7Rhope
=7Sage
=7Set lang
=7SkookumScript
=7Squirrel
=7Tbas
=7Visual Objects
=7WebAssembly
=7XEec
=7XProfan
5076ANTLR
=6BlitzMax
=6C1R
=6Cat
=6Comefrom0x10
=6DUP
=6Datalog
=6Dodo0
=6Fexl
=6Gastona
=6Gri
=6Hope
=6JavaFX Script
=6Lisp
=6MANOOL
=6MoonScript
=6OPL
=6Oxygene
=6PASM
=6PDP-11 Assembly
=6Pixilang
=6Rockstar
=6Tern
=6Terraform
=6Turing
=6Whenever
=6XTalk
5345Algae
=5Brace
=5Casio BASIC
=5Clipper/XBase++
=5DIBOL-11
=5DMS
=5Deluge
=5ELLA
=5Ferite
=5GEORGE
=5JAMES II/Rule-based Cellular Automata
=5KQL
=5L++
=5Lilypond
=5Mathcad
=5MelonBasic
=5Metapost
=5Nickle
=5Nyquist
=5Occam
=5PSQL
=5Panoramic
=5Pyret
=5Quill
=5RPL/2
=5ScratchScript
=5Script Basic
=5Sisal
=5TPP
=5Thyrd
=5Ultimate++
=5X86-64 Assembly
=5XProc
=5ZPL
568480386 Assembly
=4AMPL
=4AspectJ
=4B4X
=4Basic09
=4Biferno
=4BlooP
=4Bori
=4Cind
=4Corescript
=4Cubescript
=4DM
=4Dafny
=4ESQL
=4ElastiC
=4Emojicode
=4F
=4FP
=4Felix
=4Fhidwfe
=4Gentee
=4Go!
=4HLA
=4HPPPL
=4Heron
=4HyperTalk
=4Informix 4GL
=4Iptscrae
=4JScript.NET
=4Jinja
=4JoCaml
=4JudoScript
=4Kabap
=4Keg
=4LDPL
=4Lush
=4MUF
=4Mythryl
=4Omega
=4PL/pgSQL
=4Perl 6
=4QL SuperBASIC
=4RASEL
=4RPL
=4RTL/2
=4SMEQL
=4SPARC Assembly
=4SheerPower 4GL
=4SimpleCode
=4StreamIt
=4TI-83 Hex Assembly
=4Teco
=4TransFORTH
=4Twelf
=4Uniface
=4Unison
=4VB6
=4Wisp
=4XSLT 2.0
=4ZED
6293.QL
=38 1/2
=3A+
=3ALGOL
=3ANT
=3ASP
=3ASP.Net
=3Action!
=3Acurity Architect
=3Agda2
=3Alice ML
=3Application Master
=3AspectC++
=3Axum
=3BML
=3Battlestar
=3Beta
=3C0H
=3CB80
=3CHR
=3Caml
=3Cecil
=3Cilk
=3Cilk++
=3ContextFree
=3DataWeave
=3Diesel
=3Elan
=3Euler
=3Explore
=3Extended BrainF***
=3FAUST
=3FPI
=3FeatureC++
=3FreeMat
=3GB BASIC
=3Glagol
=3Global Script
=3Goo
=3Jabaco
=3Kaya
=3KeyList Databasing
=3Kitten
=3L.in.oleum
=3LiveScript
=3Lotus 123 Macro Scripting
=3Lout
=3M680x0
=3MDL
=3ME10 macro
=3MGS
=3MPIF90
=3MSX Basic
=3Maude
=3Mirelle
=3Monicelli
=3Myrddin
=3Mython
=3NQP
=3Nice
=3OASYS
=3OpenC++
=3PLUS
=3PLZ/SYS
=3PPL
=3Pentium Assembly
=3PepsiScript
=3Powerbuilder
=3Processing.R
=3QuakeC
=3RLSL
=3RTSL
=3Refal
=3SPSS
=3Sass/SCSS
=3Script3D
=3Superbase BASIC
=3Swahili
=3TAL
=3TeLa
=3Thistle
=3Tosh
=3UC++
=3UScript
=3UserRPL
=3VRML
=3WML
=3XBase
=3XUL
=3ΜC++
=3உயிர்/Uyir
72021C
=2Atari BASIC
=2Bird
=2C3
=2Cduce
=2DeviousYarn
=2Fennel
=2GLBasic
=2Hack
=2JOVIAL
=2Jack
=2Koka
=2Lean
=2Little Man Computer
=2Luna
=2MACRO-11
=2MINIL
=2Malbolge
=2MathCortex
=2Mosaic
=2MyrtleScript
=2NOWUT
=2OOCalc
=2OpenLisp
=2PeopleCode
=2Perl5i
=2Pict
=2Programming Language
=2Risc-V
=2ScriptBasic
=2SuperTalk
=2TechBASIC
=2ToffeeScript
=2Turbo-Basic XL
=2Viua VM assembly
=2Vox
=2XL
=2XPath 2.0
=2XSLT 1.0
7591Anyways
=1Apricot
=1Aquarius BASIC
=1AutoLISP
=1B4J
=1Batari Basic
=1Binary Lambda Calculus
=1C2
=1CafeOBJ
=1Clarion
=1Coconut
=1DDNC
=1DIV Games Studio
=1FRISC Assembly
=1FormulaOne
=1G-fu
=1Guile
=1Inko
=1Jacquard Loom
=1KL1
=1Kamailio Script
=1Lambda Prolog
=1LibreOffice Basic
=1Lychen
=1MAPPER
=1MEL
=1Mond
=1Monkey
=1NASL
=1NATURAL
=1Neat
=1NewtonScript
=1Night
=1Odin
=1Opa
=1Pare
=1Plan
=1PowerPC Assembly
=1Qore
=1RATFOR
=1RPGIV
=1Rapira
=1Reason
=1Setl4
=1Soar
=1SoneKing Assembly
=1Supernova
=1Terra
=1TestML
=1TutorialD
=1Wollok
=1Xanadu
=1Ya
Task not implemented in Racket#PhixGoJuliaRakuNimPerlWrenPythonCKotlinREXXJava
15 puzzle game in 3D1           
16 puzzle game7     
ABC words11 
AVL tree10  
Abbreviations, automatic12
Abelian sandpile model10  
Abelian sandpile model/Identity8    
Active Directory/Search for a user9   
Add a variable to a class instance at runtime9   
Additive primes8    
Air mass8    
Almkvist-Giullera formula for pi9   
Alternade words11 
Arithmetic coding/As a generalized change of radix10  
Arithmetic evaluation/Phix1           
Aspect oriented programming9   
Audio frequency generator5       
Audio overlap loop3         
Base-16 representation9   
Base64 decode data11 
Bell numbers12
Bin given limits11 
Bioinformatics/Subsequence9   
Bioinformatics/global alignment8    
Biorhythms9   
Black Box4        
Blackjack strategy3         
Boids5       
Brace expansion using ranges7     
Brazilian numbers12
Break OO privacy10  
Burrows–Wheeler transform12
CLI-based maze-game2          
Calkin-Wilf sequence9   
Canny edge detector7     
Canonicalize CIDR11 
Catmull–Clark subdivision surface7     
Change e letters to i in words10  
Changeable words11 
Chaocipher11 
Checksumcolor8    
Chernick's Carmichael numbers10  
Chess player4        
Circular primes12
Cistercian numerals11 
Combinations with repetitions/Square digit chain8    
Common list elements9   
Common sorted list10  
Compare sorting algorithms' performance8    
Compiler/AST interpreter9   
Compiler/Simple file inclusion pre processor4        
Compiler/Verifying syntax7     
Compiler/code generator10  
Compiler/syntax analyzer9   
Compiler/virtual machine interpreter9   
Consecutive Primes With Ascending Or Descending Differences8    
Continued fraction/Arithmetic/G(matrix ng, continued fraction n1, continued fraction n2)7     
Coprime triplets8    
Coprimes10  
Count the coins/0-17     
Cousin primes10  
Cubic Special Primes8    
Curve that touches three points7     
Cyclops numbers8    
Cyclotomic polynomial10  
DELAY.REX1           
Data Encryption Standard12
Days between dates12
Deconvolution/2D+9   
Determine if a string has all unique characters12
Determine if a string is collapsible12
Determine if a string is squeezable12
Discrete Fourier transform7     
Display an outline as a nested table8    
Distinct Palindromes Within Decimal Numbers7     
Distribution of 0 Digits in Factorial Series9   
Diversity prediction theorem12
Doomsday rule11 
Doubly-linked list/Element removal6      
EKG sequence convergence12
Eban numbers12
Elliptic Curve Digital Signature Algorithm9   
Erdős-primes9   
Esthetic numbers11 
Execute CopyPasta Language9   
Exponentiation with infix operators in (or operating on) the base9   
External sort9   
Extra primes12
Faces from a mesh8    
Factorial base numbers indexing permutations of a collection8    
Fairshare between two and more12
Fermat numbers12
Fibonacci heap8    
Fibonacci matrix-exponentiation8    
Find first missing positive8    
Find if a point is within a triangle12
Find prime n for that reversed n is also prime9   
Find prime numbers of the form n*n*n+29   
Find words which contains all the vowels8    
Find words which contains more than 3 e vowels10  
Find words which contains most consonants8    
Find words which first and last three letters are equals8    
Find words with alternating vowels and consonants10  
First perfect square in base n with n unique digits12
First power of 2 that has leading decimal digits of 1212
Fixed length records9   
Four is the number of letters in the ...12
French Republican calendar8    
Frobenius numbers11 
Gapful numbers12
Generalised floating point multiplication4        
Generate random chess position12
Geohash8    
Geometric algebra9   
Getting the number of decimals11 
Greed9   
Harmonic series8    
Hexapawn4        
Home primes7     
Hourglass puzzle9   
I'm a software engineer, get me out of here6      
IRC gateway1           
Imaginary base numbers11 
Increasing gaps between consecutive Niven numbers11 
Intersecting number wheels12
Isqrt (integer square root) of X12
Jacobi symbol12
Jaro-Winkler distance8    
Joystick position5       
Kolakoski sequence11 
Kronecker product based fractals12
Lah numbers12
Largest number divisible by its digits12
Largest proper divisor of n10  
Latin Squares in reduced form10  
Latin Squares in reduced form/Randomizing using Jacobson and Matthews’ Technique5       
Law of cosines - triples12
Length of an arc between two angles12
Line circle intersection11 
Logistic curve fitting in epidemiology11 
Long literals, with continuations10  
Long year11 
Longest common suffix12
Longest palindromic substrings9   
Longest substrings without repeating characters8    
Loop Structures1           
Loops/With multiple ranges12
Lucky and even lucky numbers12
Magic squares of doubly even order12
Magic squares of singly even order11 
Magnanimous numbers10  
Mastermind10  
Maximum difference between adjacent elements of list9   
Mayan calendar7     
Mayan numerals11 
Mayan numerals\$MAYAN.REX1           
Merge and aggregate datasets9   
Mersenne primes12
Mertens function11 
Metallic ratios11 
Mian-Chowla sequence12
Mind boggling card trick11 
Minimal steps down to 19   
Minimum positive multiple in base 10 using only 0 and 111 
Minkowski question-mark function9   
Modified random distribution9   
Monads/Writer monad9   
Multi-base primes7     
Multidimensional Newton-Raphson method7     
Möbius function10  
N-body problem11 
N-smooth numbers12
Neighbour primes8    
Next highest int from digits12
Next special primes10  
Nice primes11 
Nimber arithmetic11 
Non-transitive dice10  
Numbers divisible by their individual digits, but not by the product of their digits.10  
Numbers in base 10 that are palindromic in bases 2, 4, and 1610  
Numbers in base-16 representation that cannot be written with decimal digits8    
Numbers n in which number 1 occur twice8    
Numbers which binary and ternary digit sum are prime10  
Numbers which count of divisors is prime7     
Numbers with equal rises and falls11 
Numbers with prime digits whose sum is 1311 
Numbers with same digit set in base 10 and base 1610  
Numerical and alphabetical suffixes8    
Numerical integration/Adaptive Simpson's method12
OLE automation3         
Odd squarefree semiprimes8    
Odd words9   
OpenGL/Utah Teapot7     
Orbital elements12
Order by pair comparisons11 
P-Adic numbers, basic6      
P-Adic square roots4        
P-value correction11 
Padovan n-step number sequences10  
Padovan sequence10  
Palindrome dates11 
Palindromic gapful numbers11 
Palindromic primes9   
Palindromic primes in base 167     
Pancake numbers12
Parse EBNF5       
Partition function P11 
Peaceful chess queen armies11 
Pell's equation12
Permutations with some identical elements8    
Permutations/Rank of a permutation12
Pierpont primes12
Piprimes9   
Pisano period10  
Playfair cipher11 
Powerful numbers8    
Practical numbers9   
Price list behind API8    
Primality by Wilson's theorem11 
Prime numbers p which sum of prime numbers less or equal to p is prime7     
Prime numbers which contain 1239   
Prime triplets8    
Prime words8    
Primes which sum of digits is 2512
Primes whose first and last number is 36      
Primes with digits in nondecreasing order9   
Print itself9   
Process SMIL directives in XML data5       
Product of decimal digits of n2          
Product of divisors12
Pseudo-random numbers/Combined recursive generator MRG32k3a11 
Pseudo-random numbers/PCG3212
Pseudo-random numbers/Splitmix6410  
Pseudo-random numbers/Xorshift star12
Pseudorandom number generator image8    
Quadrat Special Primes8    
Quoting constructs7     
Ramanujan's constant10  
Random Latin squares12
Random sentence from book6      
Range modifications8    
Rare numbers9   
Raster bars6      
Recaman's sequence12
Recursive descent parser generator5       
Reflection/Get source10  
Reflection/List methods10  
Reflection/List properties11 
Remote agent/Agent interface3         
Remote agent/Agent logic4        
Remote agent/Simulation4        
Remove vowels from a string12
Resistance calculator8    
Resistance network calculator8    
Robots6      
Rosetta Code/List authors of task descriptions4        
Rosetta Code/Run examples3         
Rosetta Code/Tasks without examples7     
Rule301           
SHA-256 Merkle tree10  
SOAP8    
Safe mode6      
Safe primes and unsafe primes12
Self numbers12
Self-hosting compiler7     
Semaphore1           
Sequence: nth number with exactly n divisors12
Sequence: smallest number greater than previous term with exactly n divisors12
Sequence: smallest number with exactly n divisors12
Sexy primes12
Shift list elements to left by 311 
Show the (decimal) value of a number of 1s appended with a 3, then squared10  
Sierpinski arrowhead curve9   
Sierpinski curve8    
Sierpinski square curve8    
Sleeping Beauty problem9   
Smallest enclosing circle problem7     
Smallest numbers8    
Smallest power of 6 whose decimal expansion contains n10  
Smallest square that begins with n10  
Smarandache prime-digital sequence11 
Snake9   
Solve a Rubik's Cube6      
Solving coin problems4        
Sort an outline at every level7     
Sort the letters of string in alphabitical order6      
Sorting algorithms/Cocktail sort with shifting bounds12
Special Divisors9   
Special factorials10  
Spelling of ordinal numbers12
Spoof game10  
Square Form Factorization9   
Square root by hand10  
Stirling numbers of the first kind12
Stirling numbers of the second kind12
Strange numbers12
Strange plus numbers12
Strange unique prime triplets11 
Strassen's algorithm6      
Strong and weak primes12
Substring primes7     
Successive prime differences12
Suffixation of decimal numbers9   
Sum data type10  
Sum of divisors12
Sum of elements below main diagonal of matrix9   
Sum of first n cubes10  
Sum of the digits of n is substring of n11 
Summarize primes10  
Super-d numbers12
Sylvester's sequence8    
Tamagotchi emulator5       
Tau function11 
Tau number11 
Teacup rim text11 
Terminal control/Restricted width positional input/No wrapping8    
Terminal control/Restricted width positional input/With wrapping8    
Tetris6      
Text completion9   
The Name Game12
Three word location9   
Tree datastructures8    
Tree from nesting levels8    
Triplet of three numbers10  
Twin primes11 
Two bullet roulette11 
Two identical strings11 
UPC12
URL shortener4        
Ukkonen’s suffix tree construction4        
Ulam numbers11 
Unicode polynomial equation5       
Unique characters7     
Unique characters in each string8    
Untouchable numbers8    
Using a speech engine to highlight words6      
Using the Meetup.com API3         
Video display modes9   
Vidir2          
War card game8    
Waveform analysis/Doh ray me7     
Waveform analysis/Top and tail4        
Weather routing5       
Wieferich primes10  
WiktionaryDumps to words4        
Word ladder10  
Word wheel10  
Words containing "the" substring10  
Words from neighbour ones10  
XML validation9   
XXXX redacted8