Sorting & Searching Index   <<   >>

 
•  Sorting is faster than grading.
•  Exploit small range integers.
•  x⍳x is useful and (will be) optimized.
•  x∘⍳ and x∘{(↓⍺)⍳↓⍵} are really good,
    esp. for small right arguments.
•  Use ⎕ct←0 and ⎕dct←0 if possible.
•  Beware O(n*2) cases.