<s>
TreapDB	B-Operating_System
is	O
a	O
kind	O
of	O
NoSQL	B-General_Concept
data	O
store	O
,	O
and	O
it	O
is	O
based	O
on	O
Treap	B-Application
data	O
structure	O
.	O
</s>
<s>
Treap	B-Application
is	O
a	O
randomized	O
balanced	O
search	O
tree	O
,	O
which	O
has	O
O(log(n )	O
)	O
complexity	O
to	O
insert	O
or	O
find	O
a	O
key	O
.	O
</s>
<s>
TreapDB	B-Operating_System
supports	O
many	O
operations	O
besides	O
"	O
get	O
"	O
and	O
"	O
set	O
"	O
.	O
</s>
<s>
TreapDB	B-Operating_System
can	O
be	O
used	O
in	O
two	O
ways	O
:	O
embedded	O
library	O
or	O
standalone	O
server	O
.	O
</s>
<s>
TreapDB	B-Operating_System
is	O
sponsored	O
by	O
.	O
</s>
