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OUSTRY Jean
Dijkstra
Commits
c3d87510
Commit
c3d87510
authored
8 months ago
by
TheVroum
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parent
51cba922
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1 changed file
dijkstra.py
+2
-3
2 additions, 3 deletions
dijkstra.py
with
2 additions
and
3 deletions
dijkstra.py
+
2
−
3
View file @
c3d87510
...
@@ -4,7 +4,6 @@ from collections import defaultdict
...
@@ -4,7 +4,6 @@ from collections import defaultdict
from
functools
import
cache
from
functools
import
cache
from
typing
import
Callable
from
typing
import
Callable
from
input
import
E
,
V
from
input
import
E
,
V
...
@@ -20,6 +19,7 @@ type FonctionDeLongueur = Callable[[Arc], Réel]
...
@@ -20,6 +19,7 @@ type FonctionDeLongueur = Callable[[Arc], Réel]
type
Tas
=
list
[
tuple
[
Réel
,
Arc
]]
type
Tas
=
list
[
tuple
[
Réel
,
Arc
]]
@cache
@cache
def
arcs_sortants_map
(
g
:
GraphType
)
->
dict
[
Sommet
,
set
[
Arc
]]:
def
arcs_sortants_map
(
g
:
GraphType
)
->
dict
[
Sommet
,
set
[
Arc
]]:
retour
:
defaultdict
[
Sommet
,
set
[
Arc
]]
=
defaultdict
(
set
)
retour
:
defaultdict
[
Sommet
,
set
[
Arc
]]
=
defaultdict
(
set
)
...
@@ -27,6 +27,7 @@ def arcs_sortants_map(g: GraphType) -> dict[Sommet, set[Arc]]:
...
@@ -27,6 +27,7 @@ def arcs_sortants_map(g: GraphType) -> dict[Sommet, set[Arc]]:
retour
[
arc
[
0
]].
add
(
arc
)
retour
[
arc
[
0
]].
add
(
arc
)
return
retour
return
retour
def
arcs_sortants
(
g
:
GraphType
,
u
:
Sommet
)
->
set
[
Arc
]:
def
arcs_sortants
(
g
:
GraphType
,
u
:
Sommet
)
->
set
[
Arc
]:
return
arcs_sortants_map
(
tuple
(
frozenset
(
g_component
)
for
g_component
in
g
))[
u
]
return
arcs_sortants_map
(
tuple
(
frozenset
(
g_component
)
for
g_component
in
g
))[
u
]
...
@@ -50,7 +51,6 @@ def plus_courts_chemins(
...
@@ -50,7 +51,6 @@ def plus_courts_chemins(
prédécesseurs
[
s
]
=
None
prédécesseurs
[
s
]
=
None
distance
[
s
]
=
0
distance
[
s
]
=
0
explore
(
s
)
explore
(
s
)
while
frontière
:
while
frontière
:
e
:
Arc
=
heapq
.
heappop
(
frontière
)[
1
];
v
:
Sommet
=
e
[
1
]
e
:
Arc
=
heapq
.
heappop
(
frontière
)[
1
];
v
:
Sommet
=
e
[
1
]
if
v
not
in
parcouru
:
if
v
not
in
parcouru
:
...
@@ -61,4 +61,3 @@ def plus_courts_chemins(
...
@@ -61,4 +61,3 @@ def plus_courts_chemins(
pprint
(
plus_courts_chemins
((
V
,
E
),
lambda
x
:
1.0
,
"
A
"
))
pprint
(
plus_courts_chemins
((
V
,
E
),
lambda
x
:
1.0
,
"
A
"
))
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