RBST or rBST may refer to:
In computer science, the treap and the randomized binary search tree are two closely related forms of binary search tree data structures that maintain a dynamic set of ordered keys and allow binary searches among the keys. After any sequence of insertions and deletions of keys, the shape of the tree is a random variable with the same probability distribution as a random binary tree; in particular, with high probability its height is proportional to the logarithm of the number of keys, so that each search, insertion, or deletion operation takes logarithmic time to perform.
The treap was first described by Cecilia R. Aragon and Raimund Seidel in 1989; its name is a portmanteau of tree and heap. It is a Cartesian tree in which each key is given a (randomly chosen) numeric priority. As with any binary search tree, the inorder traversal order of the nodes is the same as the sorted order of the keys. The structure of the tree is determined by the requirement that it be heap-ordered: that is, the priority number for any non-leaf node must be greater than or equal to the priority of its children. Thus, as with Cartesian trees more generally, the root node is the maximum-priority node, and its left and right subtrees are formed in the same manner from the subsequences of the sorted order to the left and right of that node.
Ride... die... sacrifice!
Along the river of bloody tears
the mighty steel shining in my hands
we march and honor our brothers
victims of Kron's evil plan
We cross the lakes of the holy woods
to reach the ocean where red waves rule
the black king is moving to Algalord
this is the time... he has to be stopped!
HAIL, HAIL!
...Brave swordmaster!
MARCH, MARCH!
...Great swordmaster!
and I ask the wind for the fall of the king...!
INTO THE RAY OF THE SUN
MARCH OUR HERO HUNTING THE DARKLORD
REBORN FROM THE BLOOD OF HIS GOD...
HIS GOD... THE WARMASTER KRON
RIDE FOR THE FALL OF HIS POWER
FIGHTING THE STORM, THE ROAR OF THE THUNDER
ALLY OF THE SUN AND THE MOON...
GREAT SWORDMASTER RULE!
Between the waves of the raging sea
echoes of warcries and battle hymns
the underworld's armies found their ancient queen
the funeral march in the depths of the abyss
The terror which strikes the honor which prays
will be face to face in the mortal doomsday
resist my fierce soldiers their vision can kill
it will test your courage... and your will to live
HAIL, HAIL!
...Brave swordmaster!
MARCH, MARCH!
...Great swordmaster!
and I ask the wind for the fall of the king...!
INTO THE RAY OF THE SUN
MARCH OUR HERO HUNTING THE DARKLORD
REBORN FROM THE BLOOD OF HIS GOD...
HIS GOD... THE WARMASTER KRON
RIDE FOR THE FALL OF HIS POWER
FIGHTING THE STORM, THE ROAR OF THE THUNDER
ALLY OF THE SUN AND THE MOON...
GREAT SWORDMASTER RULE!
To avenge all those cries I will rise to the sky
to defend mother life.