I try but I don't understand the merge function (Alfonso and Richard solutions). Can you explain ?
since numbers only range from 0 to 3 you may consider each row of A or B as a 16-digit base-4 number and just convert it to a 32-bit integer...
But if we have less restrictions on the input range (for example values between 0 and 255) ?
Jean-Marie, the methodology of converting multiple column value words into a single value has limited but specific applications where value ranges are limited. In the case of DNA sequencing the values can be made numeric 0:3. For ranges up to 255 the width gets limited to stay under the 2^64, or 2^53 limit for double. This challenge was a demonstration of a method to improve performance for functions like ismember.
Right and wrong
Project Euler: Problem 10, Sum of Primes
Cody Computer Part 2 - Get the license number of Cody Computer
Multiply a column by a row
GJam 2014 China Rd B: Party
AVIRIS Inscribed Rectangle Bit Mask - Speed Test
Chezz_020 Pawn Attack and Slaying King
PACMAT - G03 Ghosts use minimum path to PACMAT; 3 Lives
LMI Twins : Fuzzy Image matching
Find the treasures in MATLAB Central and discover how the community can help you!
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
You can also select a web site from the following list:
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.
Contact your local office