May 2017 - Challenge
In the string CABACB, each letter appears exactly twice and the number of characters between the "A"s is one, between the "B"s is two, and between the "C"s is three.
The same problem with the letters A-E cannot be solved, but adding a space (in the form of a hyphen) allows it to be solved.
For example, in the string ADAEC-DBCEB, the number of characters between the "A"s is one, between the "B"s is two, between the "C"s is three (counting the space), between the "D"s is four, and between the "E"s is five.
Find a string of letters (A-Z) and "-" whose length is no more than 53 characters, where each of the 26 letters A-Z appears exactly twice, and there is one character between the "A"s, two between the "B"s ... and 26 between the "Z"s.
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Challenge:
27/04/2017 @ 12:00 PM EST
Solution:
05/06/2017 @ 12:00 PM EST
List Updated:
05/06/2017 @ 12:00 PM EST
People who answered correctly:
Robert Gerbicz (28/04/2017 01:49 AM IDT)
Rickard Björklund (28/04/2017 02:26 AM IDT)
Noah Lordi (28/04/2017 05:23 AM IDT)
Igor Karp (28/04/2017 07:22 AM IDT)
Kang Jin Cho (28/04/2017 09:08 AM IDT)
Clive Tong (28/04/2017 10:36 AM IDT)
Yan-Wu He (28/04/2017 11:35 AM IDT)
Alex Fleischer (28/04/2017 12:54 PM IDT)
Matthew Charlap (28/04/2017 05:18 PM IDT)
Dan Dima (28/04/2017 07:54 PM IDT)
Steven Langerwerf (28/04/2017 08:22 PM IDT)
Bert Dobbelaere (28/04/2017 09:06 PM IDT)
Todd Will (28/04/2017 10:00 PM IDT)
Evert van Dijken (28/04/2017 11:25 PM IDT)
Oleg Vlasii (28/04/2017 11:32 PM IDT)
Leonid Kalmankin (29/04/2017 12:17 AM IDT)
Roddy MacPhee (29/04/2017 12:31 AM IDT)
Jesse Rearick (29/04/2017 12:56 AM IDT)
Pål Hermunn Johansen (29/04/2017 01:33 AM IDT)
Dmitry Kim (29/04/2017 02:06 AM IDT)
Paolo Farinelli (29/04/2017 06:44 AM IDT)
Sean Egan (29/04/2017 07:51 AM IDT)
Antonio García Astudillo (29/04/2017 02:07 PM IDT)
Thomas Satzger (29/04/2017 09:05 PM IDT)
Andreas Knüpfer (29/04/2017 11:53 PM IDT)
Reiner Martin (30/04/2017 12:01 AM IDT)
Guy Danielli (30/04/2017 12:41 AM IDT)
Leo Broukhis (30/04/2017 04:06 AM IDT)
Shirish Chinchalkar (30/04/2017 05:05 AM IDT)
Dejan Stakić (30/04/2017 08:49 AM IDT)
Anatoly Vorobey (30/04/2017 11:40 AM IDT)
George Barnett (30/04/2017 12:00 PM IDT)
Aviv Nisgav (30/04/2017 01:00 PM IDT)
Emir Haleva (30/04/2017 04:38 PM IDT)
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Kaifei Chen (04/05/2017 06:06 AM IDT)
Kandala Srinivas (04/05/2017 06:30 AM IDT)
Tim Cieplowski (04/05/2017 07:54 AM IDT)
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Vasu Venkateshwaran (04/05/2017 03:14 PM IDT)
Mathias Schenker (04/05/2017 05:04 PM IDT)
Andreas Eisele (05/05/2017 10:36 AM IDT)
Tamir Ganor & Shouky Dan (05/05/2017 12:30 PM IDT)
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Florian Fischer (06/05/2017 02:35 AM IDT)
David Greer (06/05/2017 04:55 AM IDT)
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Michael Liepelt (06/05/2017 10:08 AM IDT)
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Ricardo Koller (06/05/2017 07:01 PM IDT)
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Lingxi Chen (17/05/17 04:17 AM IDT)
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Ahmed Halabya (17/05/17 07:18 PM IDT)
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Ron Porath (18/05/17 12:26 AM IDT)
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Nathan Bui (18/05/17 05:54 PM IDT)
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Uma Ramanathan (19/05/17 11:49 AM IDT)
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Joshua Gunderson (19/05/17 11:56 PM IDT)
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Eran Grosbard (21/05/17 05:00 PM IDT)
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Ahmed Samir (21/05/17 11:15 PM IDT)
Fabio Filatrella (22/05/17 07:40 PM IDT)
Erik Hostens (22/05/17 10:15 PM IDT)
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Jang Hun Choi (23/05/17 12:06 AM IDT)
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Greg Janée (24/05/17 05:55 AM IDT)
Shen Huang (26/05/17 02:31 AM IDT)
Motty Porat (27/05/17 02:48 AM IDT)
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Oscar Volpatti (01/06/17 08:29 AM IDT)