USING: kernel math sequences namespaces errors hashtables words
arrays parser compiler syntax io optimizer inference tools
prettyprint ;
IN: random-tester

: nth-rand ( seq -- elem ) [ length random-int ] keep nth ;

! HASHTABLES
: random-hash-entry ( hash -- key value )
    hash>alist nth-rand first2 ;

: coin-flip ( -- bool ) 2 random-int zero? ;
: do-one ( seq -- ) nth-rand call ; inline