Created
March 6, 2012 15:54
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| mensie xs = [x | x <- xs, x < 10] | |
| quicksort (x:xs) = quicksort [y | y <- xs, y <= x] ++ [x] ++ | |
| quicksort [y | y <- xs, y > x] | |
| quicksort _ = [] | |
| -- # Praca so zoznamom | |
| -- foldl - injecct | |
| -- foldl (+) 0 [1, 2, 3] | |
| -- take, drop, zip | |
| dni = ["Ne", "Po", "Ut", "Str", "Stv", "Pi", "So"] | |
| prestupny r | r `mod` 100 == 0 = r `mod` 400 == 0 | |
| | otherwise = r `mod` 4 == 0 | |
| dlzkyMes r = [31, feb, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31] | |
| where feb | prestupny r = 29 | |
| | otherwise = 28 | |
| -- Zistenie dna, kedy je 11.r. Den je indexovany od hodnoty 0 | |
| jan r = (r + minulyRok `div` 4 - minulyRok `div` 100 + minulyRok `div` 400) `mod` 7 | |
| where minulyRok = r -1 | |
| -- Zistenie dni zaciatkov mesiacov v danom roku | |
| zaciatkyMesiacov rok = map denPreIndex (scanl (+) 0 (dlzkyMes rok)) | |
| where denPreIndex index = (jan rok + index) `mod` 7 | |
| -- Helper | |
| denPreIndex index = dni !! index | |
| -- Ziskanie dni v textovej forme | |
| tlacDni rok = map denPreIndex (zaciatkyMesiacov rok) | |
| -- Zistenie dna pre konkretny datum | |
| den dn mesiac rok = (((zaciatkyMesiacov rok) !! (mesiac-1)) + (dn-1)) `mod` 7 | |
| tlacDen dn mesiac rok = denPreIndex (den dn mesiac rok) |
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