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ROSECODE 196

A special grid

sinan · Programming ·

Consider an NxN grid (N<16) where hex digits 1 to N are used only once in each row or column and treat the whole grid as a number starting from first row to the last. What is the smallest number for N=13? Answer format: last 2 rows as uppercase hex Example for N=5: 1, 2, 3, 4, 5 2, 1, 4, 5, 3 3, 4, 5, 1, 2 4, 5, 2, 3, 1 5, 3, 1, 2, 4 Number=1234521453345124523153124 Answer=4523153124