如何將未排序單詞列表轉換爲元組列表(單詞,count),按字詞排序(fst)min-max不區分大小寫?快速排序列表並將其轉換爲元組列表(elem,count)
["AAA","America", "England", "Spain"," Ireland"," aeroplane",
"aeroplane", "Aeroplane", "AeRoPlAne", "helicopter", "HELICOPTER",
"Zebra", "America", "Elephant", "abc", "A.B.C." , "haskell", "Haskell", "ZZZ", "zzz"]
預期成果:
[("a.b.c.",1),("aaa",1),("abc",1),("aeroplane",4),("america",2),("elephant",1)
,("england",1),("haskell",2),("helicopter",2),("ireland",1),("spain",1),("zebra",1),("zzz",2)]
[("a.b.c",1), ("zzz", 2)]
我們展示的代碼和確切的錯誤。 –
@DanielWagner:先生,請訪問我的問題http://stackoverflow.com/questions/11261974/complete-set-of-indentation-rules-in-haskell它有所有的細節,你可能需要了解我的確切的錯誤結束。 – Optimight
@Optimight目前還不清楚你的意思是最小最大字數還是數字。請糾正我在編輯中丟失的任何內容。 – jdeseno