7 +----------------------------------------------------------------------+ | + + + | | 'arr2' A | 6 |-+ 'hash2' BB +-| | B B | | B | | B B | 5 |-+ +-| S | B B | E | B | C4 |-+ B B +-| O | B | N | B | D3 |-+ B B +-| S | B A A A | | B B A A A | | B A A A | 2 |-+ A A A +-| | A A A | | A A A + + + | 1 +----------------------------------------------------------------------+ 10000 15000 20000 25000 30000 number of items