question: public JumpingSolitaireState ( int n ) { if ( n < 10 ) { throw new IllegalArgumentException ( "invalid triangle problem size. Must be >= 10" ) ; } k = n ; filled = new boolean [ k ] ; for ( int i = 0 ; i < k ; i ++ ) { filled [ i ] = true ; } filled [ 4 ] = false ; r = 1 + ( int ) ( Math . ceil ( Math . sqrt ( k ) ) ) ; computeMoves ( ) ; }
target:  Initialize to default configuration (start w/ middle of third open). 