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-- Cooment --
{-
Multiline
-}

import Data.List
import System.IO

-- Int -- -2^63 2^63

maxInt = maxBound :: Int
minInt = minBound :: Int

-- Integer --

sumNumber = sum[1..1000]


sqrt16 = sqrt(fromIntegral 16)


primeNumber = [3,5,7,11]


-- conact list --

morePrimes = primeNumber ++ [13, 17, 19, 23, 29]

-- const operator for list --

{-- Cons operator very important / also called as : Operator --}

list = 2 : 3 : 5 : 7 : 9: []

-- Multilist --

multiList = [[1,2,3,4,5], [6,7,8,9,11]]

morePrimse2 = 2 : morePrimes

lenPrime = length morePrimse2

revPrime = reverse morePrimse2

isListEmpty = null revPrime

index2OfMorePrime = morePrimse2 !! 2


headOfrevPrime = head revPrime

lastOfrevPrime = last revPrime


-- Everything but the last value of revPrime --

revInit = init revPrime


-- Firs three Primes -- 

first3RevPrime = take 3 revPrime

-- remove 3 primes --

removed3Primes = drop 3 revPrime

is7inRevPrimes = 7 `elem` revPrime

is2inRevPrimes = 2 `elem` revPrime
  
maxValInPrime = maximum revPrime
minValInPrime = minimum revPrime

sumOfallRevPrime = sum revPrime

{-- Product of the value of the list, 
A product of the value of the list is  
a sum of all the  values all can evenly divide by
--}

newList = [2,3,4]

productNewList = product newList

generateList = [0..100]

revGeneratedList = reverse generateList

genEventList = [2,4..100]

genOddList = [3,5..100]

-- Character list --

genCharList = ['A', 'C'..'Z']
genCharList2 = ['B', 'D'..'Z']
smallCharList = ['a'..'z']

infiniteList = [1..]

many2s = take 10 (repeat 2)
many3s = replicate 10 3

--cycle rev prime -- 

cycleRevPrime = take 20 (cycle revPrime)

-- manipulating list elements --

listTimes2 = [x * 2 | x <- [1..100], x * 2 <= 50]

listDivBy2And9 = [x | x <- [1..500], x `mod` 2 == 0, x `mod` 9 == 0]

workOnExistingList = [x * 2 | x <- revPrime, x * 2 <= 100]
workOnExisitingList2 = [x | x <- revPrime, x `mod` 2 == 0]


sumOf2Lists = zipWith (+) revPrime morePrimse2
listBiggerThan10 = filter (>10) revPrime

evensUpTo50 = takeWhile (<= 50) [2, 4..]

multiPleOflistFromLeft = foldl (*) 1 [2,10, 20]
substractionOfListFromRight = foldr (-) 0 [2, 9, 16, 90]

powerOf3RevPrime = [3^n | n <- revPrime]

multTable = [[x * y | y <- morePrimse2] | x <- revPrime]

multTable2 = [[x * y | y <- [2,4..20]] | x <- [3, 5..20]]

-- Tuples --


ranTuple = ("1", 32)

-- Tuple pair --

rehanKodekar = ("Rehan Kodekar", 27)

rehanSname = fst rehanKodekar
rehanSage = snd rehanKodekar

names = ["Rehan", "Asgar", "Saad"]
ages = [27, 28, 27]

namesAge = zip names ages