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constructive

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This commit is contained in:
UmbertoJr 2019-11-18 09:28:28 +01:00
parent 30b4cbebcd
commit 49d031d1e2
1 changed files with 6 additions and 4 deletions
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8
src/constructive_algorithms.py
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@ -86,7 +86,7 @@ class multi_fragment:
return return_value return return_value
@staticmethod @staticmethod
def create_solution(start_sol, sol): def create_solution(start_sol, sol, n):
assert len(start_sol) == 2, "too many cities with just one link" assert len(start_sol) == 2, "too many cities with just one link"
end = False end = False
n1, n2 = start_sol n1, n2 = start_sol
@ -103,6 +103,7 @@ class multi_fragment:
# f"possibili {sol[str(from_city)]}", # f"possibili {sol[str(from_city)]}",
# f"ultim tour {sol_list[-5:]}") # f"ultim tour {sol_list[-5:]}")
if iterazione > 300: if iterazione > 300:
if len(sol_list) == n:
end = True end = True
sol_list.append(n1) sol_list.append(n1)
return sol_list return sol_list
@ -118,7 +119,8 @@ class multi_fragment:
for el in np.argsort(mat.flatten()): for el in np.argsort(mat.flatten()):
node1, node2 = el // instance.nPoints, el % instance.nPoints node1, node2 = el // instance.nPoints, el % instance.nPoints
possible_edge = [node1, node2] possible_edge = [node1, node2]
if multi_fragment.check_if_available(node1, node2, solution): if multi_fragment.check_if_available(node1, node2,
solution):
if multi_fragment.check_if_not_close(possible_edge, solution): if multi_fragment.check_if_not_close(possible_edge, solution):
# print("entrato", inside) # print("entrato", inside)
solution[str(node1)].append(node2) solution[str(node1)].append(node2)
@ -132,6 +134,6 @@ class multi_fragment:
if inside == instance.nPoints - 1: if inside == instance.nPoints - 1:
# print(f"ricostruire la solutione da {start_list}", # print(f"ricostruire la solutione da {start_list}",
# f"vicini di questi due nodi {[solution[str(i)] for i in start_list]}") # f"vicini di questi due nodi {[solution[str(i)] for i in start_list]}")
solution = multi_fragment.create_solution(start_list, solution) solution = multi_fragment.create_solution(start_list, solution, instance.nPoints)
return solution return solution