<s>
LEMON	B-Language
is	O
an	O
open	B-Application
source	I-Application
graph	O
library	B-Library
written	O
in	O
the	O
C++	B-Language
language	I-Language
providing	O
implementations	O
of	O
common	O
data	O
structures	O
and	O
algorithms	O
with	O
focus	O
on	O
combinatorial	O
optimization	O
tasks	O
connected	O
mainly	O
with	O
graphs	O
and	O
networks	O
.	O
</s>
<s>
The	O
library	B-Library
is	O
part	O
of	O
the	O
COIN-OR	B-Application
project	O
.	O
</s>
<s>
LEMON	B-Language
is	O
an	O
abbreviation	O
of	O
Library	B-Library
for	O
Efficient	O
Modeling	O
and	O
Optimization	O
in	O
Networks	O
.	O
</s>
<s>
LEMON	B-Language
employs	O
genericity	B-Language
in	O
C++	B-Language
by	O
using	O
templates	B-Application
.	O
</s>
<s>
The	O
tools	O
of	O
the	O
library	B-Library
are	O
designed	O
to	O
be	O
versatile	O
,	O
convenient	O
and	O
highly	O
efficient	O
.	O
</s>
<s>
For	O
example	O
,	O
LEMON	B-Language
’s	O
graphs	O
can	O
differ	O
in	O
many	O
ways	O
(	O
depending	O
on	O
the	O
representation	O
and	O
other	O
specialities	O
)	O
,	O
but	O
all	O
have	O
to	O
satisfy	O
one	O
or	O
more	O
graph	O
concepts	O
,	O
which	O
are	O
standardized	O
interfaces	O
to	O
work	O
with	O
the	O
rest	O
of	O
the	O
library	B-Library
.	O
</s>
<s>
LEMON	B-Language
also	O
contains	O
some	O
metaheuristic	B-Algorithm
optimization	O
tools	O
and	O
provides	O
a	O
general	O
high-level	O
interface	O
for	O
several	O
LP	B-Algorithm
and	O
MIP	O
solvers	O
,	O
such	O
as	O
GLPK	B-Application
,	O
ILOG	B-Application
CPLEX	I-Application
,	O
CLP	O
,	O
CBC	O
,	O
SoPlex	O
.	O
</s>
<s>
LEMON	B-Language
has	O
its	O
own	O
graph	O
storing	O
format	O
,	O
the	O
so	O
called	O
Lemon	B-Language
Graph	O
Format	O
and	O
includes	O
general	O
EPS	B-Language
drawing	O
methods	O
and	O
special	O
graph	O
exporting	O
tools	O
.	O
</s>
<s>
LEMON	B-Language
also	O
includes	O
several	O
miscellaneous	O
tools	O
.	O
</s>
