A better description for this problem can be found at http://joonprogramming.blogspot.com/2016/04/google-code-jam-qualification-round-1a_17.html We have to find an NXN matrix, without repeating numbers at any row or column that must be ordered. And we have 2*N-1 strips of scrambled numbers, which can be rows or columns. The problem is to find what the missing strip is (notice that a NXN matrix has 2*N strips).
Find the longest sequence of 1's in a binary sequence.
Back to basics 19 - character types
Magic is simple (for beginners)
Simple date to serial no. conversion
Number of digits in an integer
Image Processing 01: Vignetting Correction
Criss-Cross Verification: NHL
Primes Faster for Large N
Battleship - Seaman Level
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