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Ingy döt Net 2013-06-05 21:47:54 +00:00
parent 1f1ad49427
commit 6f050a029e
2496 changed files with 37609 additions and 3031 deletions
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17
Task/Sort-stability/Racket/sort-stability.rkt Normal file
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#lang racket
(sort '(("UK" "London")
("US" "New York")
("US" "Birmingham")
("UK" "Birmingham"))
string<? #:key first)
;; -> (("UK" "London") ("UK" "Birmingham")
;; ("US" "New York") ("US" "Birmingham"))
(sort '(("UK" "London")
("US" "New York")
("US" "Birmingham")
("UK" "Birmingham"))
string<? #:key second)
;; -> '(("US" "Birmingham") ("UK" "Birmingham")
;; ("UK" "London") ("US" "New York"))