Difference between revisions of "FP Laboratory 5"
Jump to navigation
Jump to search
(Created page with "== High-order functions == == More complex functions == * Create a function that count the number of occurrences of all characters from a given string. <syntaxhighlight la...") |
|||
| Line 1: | Line 1: | ||
| − | == | + | == List comprehension == |
| + | Using the list comprehension implement following functions: | ||
| + | * Create a function that generates a list of all odd numbers in given interval. | ||
| + | <syntaxhighlight lang="Haskell">oddList :: Int -> Int -> [Int]</syntaxhighlight> | ||
| + | * Create a function that takes a string and converts all characters to upper case letters. | ||
| + | <syntaxhighlight lang="Haskell">allToUpper :: String -> String</syntaxhighlight> | ||
| + | * Create a function that removes all upper case letters from a string. | ||
| + | <syntaxhighlight lang="Haskell">removeAllUpper :: String -> String</syntaxhighlight> | ||
| + | * Create functions that computes union and intersection of two sets. | ||
| + | <syntaxhighlight lang="Haskell"> | ||
| + | union :: [a] -> [a] -> [a] | ||
| + | intersection :: [a] -> [a] -> [a] | ||
| + | </syntaxhighlight> | ||
| + | == More complex functions == | ||
| − | |||
| − | |||
* Create a function that count the number of occurrences of all characters from a given string. | * Create a function that count the number of occurrences of all characters from a given string. | ||
<syntaxhighlight lang="Haskell">countThem :: String -> [(Char, Int)]</syntaxhighlight> | <syntaxhighlight lang="Haskell">countThem :: String -> [(Char, Int)]</syntaxhighlight> | ||
Revision as of 14:09, 17 September 2019
List comprehension
Using the list comprehension implement following functions:
- Create a function that generates a list of all odd numbers in given interval.
oddList :: Int -> Int -> [Int]
- Create a function that takes a string and converts all characters to upper case letters.
allToUpper :: String -> String
- Create a function that removes all upper case letters from a string.
removeAllUpper :: String -> String
- Create functions that computes union and intersection of two sets.
union :: [a] -> [a] -> [a]
intersection :: [a] -> [a] -> [a]
More complex functions
- Create a function that count the number of occurrences of all characters from a given string.
countThem :: String -> [(Char, Int)]
*Main>countThem "hello hello hello"
[('h',3),('e',3),('l',6),('o',3),(' ',2)]
