Semordnilap: Difference between revisions

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@@ Line 2,214: / Line 2,214: @@
 <lang nim>import strutils, sequtils, sets, algorithm
-proc reverse(s): string =
+proc reversed(s: string): string =
   result = newString(s.len)
-  for i,c in s:
+  for i, c in s:
     result[s.high - i] = c
 let
-  words = readFile("unixdict.txt").strip.splitLines
+  words = readFile("unixdict.txt").strip().splitLines()
-  wordset = words.toSet
+  wordset = words.toHashSet
-  revs = words.map(reverse)
+  revs = words.map(reversed)
 var pairs = zip(words, revs).filterIt(it[0] < it[1] and it[1] in wordset)
 echo "Total number of semordnilaps: ", pairs.len
-pairs.sort(proc (x,y): auto = cmp(x[0].len,y[0].len))
+pairs = pairs.sortedByIt(it[0].len)
-echo pairs[pairs.high-4..pairs.high]</lang>
+echo pairs[^5..^1]</lang>
 {{out}}
 <pre>Total number of semordnilaps: 158