12/05/02 11:28:46.31
>>653
まだpermutationやってんのかよ、こんなもんがそんな面白いか？
perm [] = [[]]
perm xs = [x:y | x <- xs, y <- perm $ filter (/=x) xs]
main = print $ perm [1,2,3]
12/05/02 11:28:46.31
>>653
まだpermutationやってんのかよ、こんなもんがそんな面白いか？
perm [] = [[]]
perm xs = [x:y | x <- xs, y <- perm $ filter (/=x) xs]
main = print $ perm [1,2,3]