def algorithm(inputfilename):
routers_list = finding_most_valid_routers(inputfilename)
l = lambda x: (x[0], x[2], x[3], x[4], x[5], x[6])
rows, radius, connecting_to_backbone_cost, router_cost, budget, initial_backbone = l(
reading_input_data(inputfilename))
placed_routers = list()
while budget - router_cost > (
rows * connecting_to_backbone_cost) / 2 and len(routers_list) > 0:
current = choice(routers_list)
while True:
val = find_better_neighbors(routers_list, current,
initial_backbone, inputfilename)
if current != val:
current = val
else:
break
routers_list = [
i for i in routers_list
if not (abs(i[0][0] - current[0][0]) <= radius
and abs(i[0][1] - current[0][1]) <= radius)
]
placed_routers.append(current)
budget -= current[2] * connecting_to_backbone_cost + router_cost
return placed_routers
def greedy_algorithm(inputfile):
l = lambda x: (x[3], x[4], x[5])
connecting_to_backbone_cost, router_cost, budget = l(
reading_input_data(inputfile))
routers_list = finding_most_valid_routers2(inputfile)
print(1)
sorted_routers_list = sorted(routers_list, key=lambda x: x[1] / x[2])
dots_s = set()
n = 0
i = len(sorted_routers_list) - 1
sorted_routers_listt = sorted_routers_list[:]
while n < budget and i != 0:
if n + sorted_routers_listt[i][
2] * connecting_to_backbone_cost + router_cost < budget:
sorted_routers_listt = sorted(sorted_routers_list,
key=lambda x: len(x[3] - dots_s))
dots_s = dots_s.union(sorted_routers_listt[i][3])
dots_s.add((sorted_routers_listt[i][0][0],
sorted_routers_listt[i][0][1], "r"))
n += sorted_routers_listt[i][
2] * connecting_to_backbone_cost + router_cost
else:
i -= 1
r_list = []
dots_s = list(dots_s)
for i in range(len(dots_s)):
if len(dots_s[i]) == 3:
r_list.append((dots_s[i][0], dots_s[i][1]))
return len(dots_s), dots_s, len(r_list), r_list
def dumm_algorithm(inputfilename):
routers_list = finding_most_valid_routers(inputfilename)
l = lambda x: (x[3], x[4], x[5])
connecting_to_backbone_cost, router_cost, budget = l(
reading_input_data(inputfilename))
total_cost = 0
score_list_ = list()
for len_ in range(1, budget // router_cost + 1):
for subset in combinations(routers_list, len_):
for i in subset:
total_cost += (i[2] * connecting_to_backbone_cost +
router_cost)
if total_cost < budget:
total_connected_cells = sum([i[2] for i in subset])
ZAGLUSHKA_CELLS = [[i for i in range(2)]
for j in range(total_connected_cells)]
coordinates_of_routers = [i[0] for i in subset]
creating_outputfile(total_connected_cells, ZAGLUSHKA_CELLS,
len(subset), coordinates_of_routers)
val = count_points("../txt/algoroutput.txt", inputfilename)
score_list_.append(val)
total_cost = 0
return max(score_list_)
def count_points(outputfilename, inputfilename):
"""
:param outputfilename:The name of our resulted file
:param inputfilename:The name of our input data file
:return: Our algorithms score
"""
l = lambda x: (x[2], x[3], x[4], x[5], x[7])
radius, connecting_to_backbone_cost, router_cost, budget, cells_list = l(
reading_input_data(inputfilename))
l = lambda x: (x[1], x[2], x[3])
routers_list, connected_cells, placed_routers = l(
reading_output_data(outputfilename))
placed = placing_connected_cells(routers_list, radius, cells_list)[1]
return 1000 * placed + (budget -
(connected_cells * connecting_to_backbone_cost +
placed_routers * router_cost))
def text_connectedcells_visualization(outputfilename, inputfilename):
"""
:param outputfilename: Name of an output file
:param inputfilename: Name of an output file
:return: Returns the view of connected to network cells, which are denoted as "w"
"""
placed = 0
router_list = reading_output_data(outputfilename)[1]
l = lambda x: (x[2], x[7])
radius, cells_list = l(reading_input_data(inputfilename))
print("Routers are placed in {} position".format(router_list))
cells_list, placed = placing_connected_cells(router_list,radius,cells_list)
for i in cells_list:
print("".join(i))
def dynamic_algorithm(inputfile):
l = lambda x: (x[3], x[4], x[5])
connecting_to_backbone_cost, router_cost, budget = l(
reading_input_data(inputfile))
routers_list = finding_most_valid_routers2(inputfile)
dict_ = dict()
sorted_routers_list = sorted(routers_list, key=lambda x: x[1] / x[2])
dots_s = set()
dots_list = []
def recur(budget, i, dots_set):
sorted_routers_listt = sorted(sorted_routers_list,
key=lambda x: len(x[3] - dots_set))
dots = dots_set.copy()
if budget in dict_:
return dict_[budget]
if i == 0 or budget == 0:
dots_list.append(dots)
return 0
elif sorted_routers_listt[i][
2] * connecting_to_backbone_cost + router_cost > budget:
dict_[budget] = recur(budget, i - 1, dots)
return dict_[budget]
else:
d = dots.union(sorted_routers_listt[i][3])
d.add((sorted_routers_listt[i][0][0],
sorted_routers_listt[i][0][1], "r"))
val = sorted_routers_listt[i][
2] * connecting_to_backbone_cost + router_cost
g = sorted_routers_listt[i][1] + recur(budget - val, i - 1, d)
gg = recur(budget, i - 1, dots)
if g > gg:
dict_[budget] = g
else:
dict_[budget] = gg
return dict_[budget]
asd = recur(budget, len(routers_list) - 1, dots_s)
d_set = list(max(dots_list))
r_list = []
for i in range(len(d_set)):
if len(d_set[i]) == 3:
r_list.append((d_set[i][0], d_set[i][1]))
return len(d_set), d_set, len(r_list), r_list
def text_result_visualization(outputfilename, inputfilename):
"""
:param outputfilename: Name of an input file
:param inputfilename: Name of an output file
:return: Text representation of already changed data
"""
l = lambda x: (x[0], x[1])
connected_cells_list, routers_list = l(reading_output_data(outputfilename))
l = lambda x: (x[7], x[6])
cells_list, initial_backbone = l(reading_input_data(inputfilename))
for i in connected_cells_list:
cells_list[i[0]][i[1]] = "c"
for i in routers_list:
cells_list[i[0]][i[1]] = "r"
cells_list[initial_backbone[0]][initial_backbone[1]] = "b"
for i in cells_list:
print("".join(i))
return cells_list
def finding_most_valid_routers2(inputfilename):
"""
:param inputfilename: The name of our input data file
:return: List of possible placed routers with coordinates as a first param, coverage as second and distance to
backbone as third
"""
def calc_dist(backbone, router):
return max(abs(backbone[0] - router[0]), abs(backbone[1] - router[1]))
rows, cols, radius, connecting_to_backbone_cost, router_cost, budget,\
initial_backbone, cells_list = reading_input_data(inputfilename)
routers_list = list()
i = 0
for X in range(rows):
for Y in range(cols):
distance = calc_dist(initial_backbone, (X, Y))
if distance != 0 and cells_list[X][
Y] == ".": #Adding routers that are not backbone pos and in . pos
routers_list.append([(X, Y), 0, distance, set()])
#Finding the coverage of our router
for x in range(-radius, radius + 1):
for y in range(-radius, radius + 1):
try:
if x == 0 and y == 0:
continue
if cells_list[X + x][
Y +
y] == "." and X + x >= 0 and Y + y >= 0 and nowalls(
cells_list, X, Y, X + x, Y + y):
routers_list[i][1] += 1
routers_list[i][3].add((X + x, Y + y))
except IndexError:
pass
i += 1
return routers_list
def text_input_visualization(inputfilename):
"""
:param inputfilename: Name of an input file
:return: Text representation of input data
"""
rows, cols, radius, connecting_to_backbone_cost, router_cost, budget, initial_backbone, cells_list = reading_input_data(
inputfilename)
print("""{0} rows, {1} columns, router range radius is {2}
backbone costs {3}, router costs {4}, budget is {5}
the initial cell connected to backbone is {6} """ \
.format(rows, cols, radius, connecting_to_backbone_cost, router_cost, budget, initial_backbone))
for i in cells_list:
print("".join(i))
return cells_list
