Vrijeme: 22:10
Ukrainski lanac | Ukraine chain #5
Nakon što mu dosadi igranje šaha ili video igrica, Taras se vraća crtanju i bojanju: nečemu u čemu istinski uživa. Postoji ploča od
, koju želi obojiti uz pomoć četiri moguće boje: plave, žute, crne i bijele. On bojanje naziva različitim ako su četiri ćelije bilo kojeg kvadrata od
na ploči obojane u parovima različitih boja. Odredite broj svih različitih boja na ploči koju ima.
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After getting bored with playing chess or video games, Taras get back to drawing and colouring: something he truly enjoys. There is a
board, that he wants to colour with the help of four possible colors: blue, yellow, black and white. He calls a coloring diverse if the four cells of any
square of the board are colored with pairwise different colors. Determine the number of all diverse colourings of the board he has.
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