Nice one-liner regexprep with skillful reading of the input string format. The processing and output string creation is an efficient marvel.
Sum all integers from 1 to 2^n
Make a random, non-repeating vector.
Check if number exists in vector
Sum the entries of each column of a matrix which satisfy a logical condition.
Rubik's Cube: 30 Moves or Less : Contest Scoring (Time/Size/Moves)
USC Spring 2013 ACM: Relief Supplies
Usage of java.math : N Choose K with unlimited precision
ismember: Enhanced Performance for 'rows' and width - Speed Scoring (66% savings)
USC Spring 2013 ACM: Snow Cones
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