Find the alphabetic word product
Twins in a Window
Make one big string out of two smaller strings
Column norms of a matrix
Graceful Graph: Wichmann Rulers
GJam 2013 China Event: Happy Teams 100 Pairs
Rubik's Cube: 30 Moves or Less: Minimum Avg Time
Primes Faster for Large N
USC Fall 2012 ACM: Driving the Rover
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