def solveFile(fileName: str, log = False) -> bool:
"""
Solve a graph saved in ./inputs/{fileName}.in and output it in output folder.
Return if solve file succeed.
"""
try:
G = read_input_file("./inputs/%s.in" % fileName)
T = solver.ABC(G, N_EMPLOYED, N_ONLOOKER, N_ITERATIONS, FIRE_LIMIT, TERMINATION_LIMIT, log = log)
assert(is_valid_network(G, T))
if os.path.exists("./outputs/%s.out" % fileName):
oldT = read_output_file("./outputs/%s.out" % fileName, G)
if len(T) == 1 and len(oldT) != 1:
write_output_file(T, "./outputs/%s.out" % fileName)
return True
if len(oldT) == 1 or average_pairwise_distance(oldT) <= average_pairwise_distance(T):
# do nothing
print("File %s is skipped because old tree is better. " % fileName)
return True
write_output_file(T, "./outputs/%s.out" % fileName)
return True
except KeyboardInterrupt:
raise KeyboardInterrupt
except:
# stdout
print("ERROR: An error occured when processing on %s: %s" % (fileName, sys.exc_info()[0]))
return False
def combine(folders):
inputs = {}
best_scores = {}
best_outputs = {}
for filename in os.listdir(INPUT_PATH):
inputs[filename] = read_input_file(INPUT_PATH + filename)
for folder in folders:
for filename in os.listdir(folder):
if filename != '.DS_Store':
output_graph = read_output_file(folder + filename, inputs[filename.split('.')[0] + '.in'])
if output_graph.number_of_nodes() == 1:
best_scores[filename] = 0
best_outputs[filename] = output_graph
else:
score = average_pairwise_distance_fast(output_graph)
if filename not in best_scores:
best_scores[filename] = score
best_outputs[filename] = output_graph
elif filename in best_scores and score < best_scores[filename]:
best_scores[filename] = score
best_outputs[filename] = output_graph
for id in best_outputs:
write_output_file(best_outputs[id], OUTPUT_PATH + id)
def do_file(file,folder, min_size, max_size):
print("reading:", file)
graph = read_input_file(folder+file, min_size=min_size, max_size=max_size)
orig = graph.copy()
best_score = 0
final_ans = None
best_depth = 0
for d in range(4,5):
graph = orig.copy()
global abort
if abort:
break
abort = False
global start_time
start_time = time.time()
ans, score = find_longest_path_setup(graph, d)
if score >= best_score and ans:
final_ans = ans
best_score = score
best_depth = d
if abort:
print("too long")
abort = False
write_output_file(orig, final_ans[1], final_ans[0], "./outputs/" + file.split(".")[0] + ".out")
print("best score:",best_score,"best depth:",best_depth,"ANSWER:", final_ans )
def makeAllOutputFiles():
for file in os.listdir("inputs"):
if file.endswith(".in"):
print(os.path.join("inputs", file)) #input file
input_path = os.path.join("inputs", file)
G = read_input_file(input_path)
T = solve(G)
assert is_valid_network(G, T)
#use brute force for small graphs
if file.startswith("small") and len(T) > 2:
print("Trying brute forcing on SMALL file: " +
os.path.join("inputs", file)) #input file
BRUTE_TREE = maes_second_dumbass_brute_force(G)
if average_pairwise_distance_fast(
BRUTE_TREE) <= average_pairwise_distance_fast(T):
print("Small brute-force alg WINS.")
T = BRUTE_TREE
else:
print("Solver alg WINS.")
#nothing happens
#print("Average pairwise distance: {}".format(average_pairwise_distance_fast(T)))
outname = os.path.splitext(file)[0] + '.out'
output_path = os.path.join("outputs", outname)
print(output_path + "\n")
write_output_file(T, output_path)
assert validate_file(output_path) == True
def do_file(file, folder, min_size, max_size):
print("reading:", file)
graph = read_input_file(folder + file, min_size=min_size, max_size=max_size)
orig = graph.copy()
ans = find_longest_path_setup(graph, 3)
write_output_file(orig, ans[1], ans[0], "./outputs/" + file.split(".")[0] + ".out")
print("ANSWER:", ans)
def solver_multi_threading(i, depth=1000):
path = "inputs/{}-{}.in".format(i[0], i[1])
G = read_input_file(path)
print("Input {} success!".format(path))
T = solve(G, depth)
#print("Average pairwise distance: {}".format(average_pairwise_distance_fast(T)))
print("Output {} success!".format(path))
write_output_file("outputs/{}-{}.out".format(i[0], i[1]), T)
def take_both(word, num):
G, s = read_input_file('inputs/' + word + '-' + str(num) + '.in')
sree = kcluster_beef(G, s)
m = max([use_greedy_happystress(G, s) for i in range(100)],
key=lambda x: calculate_happiness(x, G))
if calculate_happiness(sree, G) > calculate_happiness(m, G):
print(calculate_happiness(sree, G))
write_output_file(sree, 'outputs/' + word + '-' + str(num) + '.out')
else:
print(calculate_happiness(m, G))
write_output_file(m, 'outputs/' + word + '-' + str(num) + '.out')
def single_file(lol):
path = 'inputs/small/small-' + str(lol) + '.in'
# path = 'test.in'
# path = 'inputs/medium/medium-' + str(lol) + '.in'
# path = 'inputs/large/large-' + str(lol) + '.in'
G = read_input_file(path)
print(G.nodes)
# c, k = solve2(G)
c, k = solve2(G)
assert is_valid_solution(G, c, k)
print("Shortest Path Difference: {}".format(calculate_score(G, c, k)))
write_output_file(G, c, k, 'small-test.out')
def combine_outputs():
output_dir = "outputs"
output_Avik = "outputsAvik"
output_Raghav = "outputsRaghav"
input_dir = "inputs"
for input_path in os.listdir(input_dir):
graph_name = input_path.split(".")[0]
G = read_input_file(f"{input_dir}/{input_path}")
Avik_T = read_output_file(f"{output_Avik}/{graph_name}.out", G)
Raghav_T = read_output_file(f"{output_Raghav}/{graph_name}.out", G)
T = min([Avik_T,Raghav_T], key = lambda x: average_pairwise_distance(x))
write_output_file(T, f"{output_dir}/{graph_name}.out")
print("%s Written"%(graph_name))
def solve_graph(config):
input_filenames, cacher = config
for input_filename in input_filenames:
global all_costs
global all_times
costs_iter = iter(all_costs)
times_iter = iter(all_times)
# print("File name:", input_filename)
# for each solver
for solver_filename in solvers:
costs = []
times = []
# get the solver from module name
mod = import_module(solver_filename)
solve = getattr(mod, 'solve')
# pass these to the combined solver
mod.cacher = cacher
mod.OUTPUT_DIRECTORY = OUTPUT_DIRECTORY
mod.input_filename = input_filename
if input_filename == 'small-206.in':
print('stop!') # breakpoint for debugging
input_path = os.path.join(INPUT_DIRECTORY, input_filename)
graph = read_input_file(input_path, MAX_SIZE)
start = time()
tree = solve(graph)
end = time()
times.append(end - start)
if not is_valid_network(graph, tree):
print(solver_filename, 'is invalid!')
nx.draw(graph)
return
# print(solver_filename, 'Nodes: ', tree.nodes)
# for e in tree.edges:
# print("edge:", e, "; weight:", weight(graph, e))
cost = average_pairwise_distance(tree)
print(solver_filename, 'running', input_filename, '\n Average cost: ', cost, '\n Average time:', sum(times) / len(times), '\n')
costs.append(cost)
out_file = os.path.join(OUTPUT_DIRECTORY, input_filename[:-3], solver_filename + '.out')
os.makedirs(os.path.dirname(out_file), exist_ok=True)
write_output_file(tree, out_file)
def main():
already_done = [
1, 2, 4, 6, 7, 9, 10, 12, 14, 15, 16, 17, 18, 19, 20, 26, 29, 30, 33,
34, 35, 38, 39, 40, 41, 43, 46, 47, 50, 51, 52, 53, 54, 55, 56, 58, 59,
60, 63, 64, 70, 73, 74, 76, 77, 79, 81, 83, 84, 85, 88, 89, 90, 96,
100, 101, 103, 105, 109, 110, 111, 112, 113, 114, 115, 117, 119, 121,
122, 123, 125, 128, 129, 131, 132, 134, 136, 137, 140, 141, 143, 145,
147, 151, 152, 156, 157, 158, 159, 160, 161, 162, 166, 167, 169, 172,
174, 175, 177, 178, 181, 184, 187, 196, 199, 201, 202, 203, 206, 207,
208, 209, 213, 216, 217, 218, 220, 222, 223, 226, 227, 230, 233, 235,
237, 238, 240, 241
]
# already_done = [7, 18, 33, 43, 51, 54, 56, 65, 69, 73, 77, 81, 91, 112, 114, 121, 123, 127, 131, 134, 151, 169, 171, 174, 178, 184, 187, 201, 202, 207, 213, 215, 222]
"""
inputs = glob.glob('compinputslarge/*')
couldnt = []
done = 0
for i in range(len(inputs)):
input_path = inputs[i]
done += 1
print("doing #" + str(done) + ": " + input_path)
output_path = 'comp2large/' + basename(normpath(input_path))[:-3] + '.out'
G, s = read_input_file(input_path)
D, k = solve(G, s)
if k != -1:
assert is_valid_solution(D, G, s, k)
write_output_file(D, output_path)
# print("done, used " + str(k) + " rooms")
else:
couldnt += [input_path]
"""
num = int(sys.argv[1])
moves = int(sys.argv[2])
print("Doing #" + str(num))
if num not in already_done:
input_path = "compinputsmed/medium-" + str(num) + ".in"
current_sol_path = "comp1med/medium-" + str(num) + ".out"
output_path = "comp2med/medium-" + str(num) + ".out"
G, s = read_input_file(input_path)
D, k = solve(G, s, load=current_sol_path, moves=moves)
if k != -1:
assert is_valid_solution(D, G, s, k)
write_output_file(D, output_path)
def main(filename):
# print(filename, end=": ")
random.seed(datetime.now())
input_name = filename[0:-3]
path = str(pathlib.Path().absolute()) + "/inputs/" + input_name + '.in'
G = read_input_file(path)
found = False
# degrees = G.degree(list(G.nodes()))
# for deg in degrees:
# if deg[1] == len(degrees) - 1:
# edges = list(G.edges(deg[0]))
# if len(edges) != len(degrees) - 1:
# continue
# found = True
# T = nx.Graph()
# T.add_node(deg[0])
# break
# print("Density: " + str(nx.density(G)))
if not found:
T = solve(G)
# T = solveConstructively(G)
assert is_valid_network(G, T)
score = average_pairwise_distance(T)
scores = {}
try:
scoresFile = open('scores.obj', 'rb')
except:
pickle.dump(scores, open('scores.obj', 'wb'))
scores = pickle.load(open('scores.obj', 'rb'))
better = False
if input_name not in scores or score < scores[input_name]:
# print("Found better solution!")
scores[input_name] = score
better = True
output_path = str(
pathlib.Path().absolute()) + "/outputs/" + input_name + '.out'
write_output_file(T, output_path)
pickle.dump(scores, open('scores.obj', 'wb'))
return (input_name, better, scores[input_name])
def repeatedly_solve(path):
G, s = read_input_file("inputs/" + path + ".in")
solutions = []
happiness = []
for i in range(5):
D, k = solve_helper(G, s, 12, 0, 0)
assert is_valid_solution(D, G, s, k)
# write_output_file(D, "outputs_manual/" + str(path) + "_ratio_" + str(i) + ".out")
solutions.append(D)
happiness.append(calculate_happiness(D, G))
print("i'm done with 5 only ratio")
for i in range(5):
D, k = solve_helper(G, s, 0, 12, 0)
assert is_valid_solution(D, G, s, k)
# write_output_file(D, "outputs_manual/" + str(path) + "_happiness_" + str(i) + ".out")
solutions.append(D)
happiness.append(calculate_happiness(D, G))
print("i'm done with 5 only happiness")
for i in range(5):
D, k = solve_helper(G, s, 0, 0, 12)
assert is_valid_solution(D, G, s, k)
# write_output_file(D, "outputs_manual/" + str(path) + "_stress_" + str(i) + ".out")
solutions.append(D)
happiness.append(calculate_happiness(D, G))
print("i'm done with 5 only stress")
for i in range(5):
D, k = solve_helper(G, s, 5, 5, 5)
assert is_valid_solution(D, G, s, k)
# write_output_file(D, "outputs_manual/" + str(path) + "_all_3_" + str(i) + ".out")
solutions.append(D)
happiness.append(calculate_happiness(D, G))
print("i'm done with 5 all 3")
print(happiness)
max_happiness = max(happiness)
best_index = 0
print(max_happiness)
for i in range(20):
if happiness[i] == max_happiness:
best_index = i
print(best_index)
write_output_file(solutions[best_index], "out_manual/" + str(path) + ".out")
def makeAllOutputFiles():
for file in os.listdir("inputs"):
if file.endswith(".in"):
print(os.path.join("inputs", file)) #input file
input_path = os.path.join("inputs", file)
G = read_input_file(input_path)
try:
T = solve(G)
except:
print("ERRORED OUT. CONTINUE ANYWAY")
T = G
assert is_valid_network(G, T)
#randomization optimization
if len(T) > 2:
print("Trying randomization to find better result..")
try:
betterT = maes_randomization_alg(
G, T, 100) #50 iterations of randomness
except:
print("ERRORED OUT. CONTINUE ANYWAY")
betterT = G
assert is_valid_network(G, betterT)
if average_pairwise_distance_fast(
betterT) < average_pairwise_distance_fast(T):
print("BETTER TREE FOUND.")
T = betterT
else:
print("No improvements.")
#nothing happens
#print("Average pairwise distance: {}".format(average_pairwise_distance_fast(T)))
outname = os.path.splitext(file)[0] + '.out'
output_path = os.path.join("outputs", outname)
print(output_path + "\n")
write_output_file(T, output_path)
assert validate_file(output_path) == True
def make_output_from_dict(rooms_to_students, path, G, s):
"""
Converts the dictionary of rooms to students to a valid return of the solver and writes to
output file
Args:
rooms_to_students: Dictionary of room to a list of students
path: filepath to output file to write dictionary output
"""
dct = convert_dictionary(rooms_to_students)
try:
din = parse.read_output_file(path, G, s)
except (FileNotFoundError, AssertionError):
if (len(rooms_to_students) <= 0):
print("Empty Room Configuration")
return
if (is_valid_solution(dct, G, s, len(rooms_to_students))):
parse.write_output_file(dct, path)
D = parse.read_output_file(path, G, s)
happy2 = calculate_happiness(D, G)
print("current happiness of this file: ", happy2)
return
happy0 = calculate_happiness(din, G)
happy1 = calculate_happiness(dct, G)
#print("happiness of previous configuration: ", happy0)
#print("happiness of this configuration: ", happy1)
if ((happy1 > happy0)
and (is_valid_solution(dct, G, s, len(rooms_to_students)))):
print("Valid")
parse.write_output_file(dct, path)
D = parse.read_output_file(path, G, s)
happy2 = calculate_happiness(D, G)
print("current happiness of this file: ", happy2)
assert (max(happy1, happy0) == happy2)
def solve_file(files):
infile, outfile = files
G, T, cost = parse.read_input_file(infile), None, float('inf')
if os.path.exists(outfile):
try:
T = parse.read_output_file(outfile, G)
except:
print(f"{outfile} could not be read.")
return None
cost = utils.average_pairwise_distance_fast(T)
new_T, new_cost = solve(G, T, cost)
if new_cost < cost:
parse.write_output_file(new_T, outfile)
if LOCK is not None:
LOCK.acquire()
print(f"New minimum found for {infile}, with cost {new_cost}.")
if LOCK is not None:
LOCK.release()
else:
if LOCK is not None:
LOCK.acquire()
print(f"No new minimum found for {infile}.")
if LOCK is not None:
LOCK.release()
"""
Args:
G: networkx.Graph
Returns:
T: networkx.Graph
"""
solver = LocalSearchSolver(G)
T = solver.solve()
return T
# Here's an example of how to run your solver.
# Usage: python3 solver.py test.in
if __name__ == '__main__':
paths = sys.argv[1:]
for i in tqdm(range(len(paths))):
path = paths[i]
G = read_input_file(path)
T = solve(G)
assert is_valid_network(G, T)
print("=" * 30)
print("Average pairwise distance: {}".format(
average_pairwise_distance_fast(T)))
output = path.split('/')[-1].split('.')[0]
write_output_file(T, 'outputs/{}.out'.format(output))
size = input_path[7:]
v, e = solve(G, size) # Calculates the list of vertices (v) and edges (e) to remove
output_path = 'outputs/' + file_path[7:][:-3] + '.out'
currBest_distance = read_output_file(G, output_path)
#currBest_distance = -1 # DEBUG
this_distance = calculate_score(G, v, e)
if currBest_distance >= this_distance:
print("Current output is better or equal to this output. No output file written.")
else:
overall_improvements += 1
print("Output distance IMPROVED by: " + str(this_distance - currBest_distance))
print("NEW shortest path is length: " + str(this_distance))
write_output_file(G, v, e, output_path)
print("TOTAL OUTPUTS IMPROVED: " + str(overall_improvements))
# Here's an example of how to run your solver.
# Usage: python3 solver.py test.in
# if __name__ == '__main__':
# assert len(sys.argv) == 2
# path = sys.argv[1]
# G = read_input_file(path)
# c, k = solve(G)
# assert is_valid_solution(G, c, k)
# print("Shortest Path Difference: {}".format(calculate_score(G, c, k)))
#testing = False
# if testing:
# path = 'small-4.in'
# G = read_input_file('inputs/' + path)
# print(path)
# T = findTree(G)
# assert is_valid_network(G, T)
# print("Average pairwise distance: {}\n".format(average_pairwise_distance(T)))
# else:
if True:
files = sorted([
filename for root, dirs, file in os.walk("./inputs")
for filename in file
],
key=lambda x: int(
x.replace('large-', '').replace('small-', '').
replace('medium-', '').replace('.in', '')))
for count, f in enumerate(files, 1):
G = read_input_file("./inputs/" + f)
print(count)
print(f)
T = findTree(G)
assert is_valid_network(G, T)
print("Average pairwise distance: {}\n".format(
average_pairwise_distance(T)))
write_output_file(T, f'out/{f.replace(".in", ".out")}')
files = [
filename for root, dirs, file in os.walk("./out")
for filename in file
]
print(len(files))
print(G.nodes)
# c, k = solve2(G)
c, k = solve2(G)
assert is_valid_solution(G, c, k)
print("Shortest Path Difference: {}".format(calculate_score(G, c, k)))
write_output_file(G, c, k, 'small-test.out')
if __name__ == '__main__':
# single_file(62)
for i in range(1, 301):
print("INPUT: ", i)
path = 'inputs/medium/medium-' + str(i) + '.in'
G = read_input_file(path)
c, k = solve2(G)
assert is_valid_solution(G, c, k)
print("Shortest Path Difference: {}".format(calculate_score(G, c, k)))
output_path = 'outputs/medium-' + str(i) + '.out'
write_output_file(G, c, k, output_path)
# For testing a folder of inputs to create a folder of outputs, you can use glob (need to import it)
# if __name__ == '__main__':
# inputs = glob.glob('inputs/*')
# for input_path in inputs:
# output_path = 'outputs/' + basename(normpath(input_path))[:-3] + '.out'
# G = read_input_file(input_path)
# c, k = solve(G)
# assert is_valid_solution(G, c, k)
# distance = calculate_score(G, c, k)
# write_output_file(G, c, k, output_path)
start = time.time()
try:
current_T = read_output_file(
'outputs/' + path.split('.')[0].split('/')[1] + '.out', G)
if current_T.number_of_nodes() > 1:
if G.number_of_edges() < 24:
# DON'T USE MP, MUCH SLOWER SINCE DATA HAS TO BE COPIED TO PROCESSORS!!!
# T = solve_edge_combinations_brute_force_MP(G)
T = solve_edge_combinations_brute_force(G)
assert is_valid_network(G, T)
if len(T) == 1 or average_pairwise_distance(
T) < average_pairwise_distance(current_T):
write_output_file(
T,
'outputs/' + path.split('.')[0].split('/')[1] + '.out')
print("Old pairwise distance: {}".format(
average_pairwise_distance(current_T)))
else:
print("not better pairwise dist: " +
str(average_pairwise_distance(current_T)))
if len(T) == 1:
print("MP_edge_brute_force new pairwise distance: 0")
else:
print(
"MP_edge_brute_force new pairwise distance: {}".format(
average_pairwise_distance(T)))
else:
# not using this because it takes too long and isn't an actual brute force (the other approximations work better)
# if G.number_of_nodes() < 24:
print("Best Alg: " + str(optimal_algorithm))
print("Score: " + str(alg_score) + "%")
# To run: python3 solver.py inputs
if __name__ == '__main__':
assert len(sys.argv) == 2
arg_path = sys.argv[1]
alg_quality = {}
total = 0
input_graphs = os.listdir(arg_path)
total_dist = 0
for graph_in in input_graphs:
#print("---------------")
#print("Calculating Minimal Tree for: " + graph_in)
G = read_input_file(arg_path + '/' + graph_in)
# foo()
T, alg, avgdist = solve(G) #solve will return both the graph T and the optimal algorithm name.
if (alg in alg_quality):
alg_quality[alg] += 1
else:
alg_quality[alg] = 1
assert is_valid_network(G, T)
# print("Average pairwise distance: {}".format(average_pairwise_distance(T)))
graph_out = 'outputs/' + graph_in[:len(graph_in) - 3] + '.out'
write_output_file(T, graph_out)
read_output_file(graph_out, G)
total += 1
total_dist += avgdist
print_best_algorithm(alg_quality, total)
print("AVG OF AVGS (minimize this): " + str(total_dist / total))
def write_best_graph():
filename = id.split('.')[0]
write_output_file(G, OUTPUT_PATH + filename + '.out')
print(method + ' ' + id)
if __name__ == '__main__':
assert len(sys.argv) == 2
total_pairwise_distance = 0
#to run on all inputs: python3 solver.py all_inputs
if sys.argv[1] == "all_inputs":
for i in range(266, 304):
path = 'inputs/small-' + str(i) + '.in'
G = read_input_file(path)
T = solve(G)
assert is_valid_network(G, T)
total_pairwise_distance += average_pairwise_distance(T)
print(path + " Average Pairwise Distance: {}".format(
average_pairwise_distance(T)))
path_string = re.split('[/.]', path)
write_output_file(T, 'outputs/' + path_string[1] + '.out')
print(" Total Average Small Pairwise Distance: {}".format(
total_pairwise_distance / 303))
for i in range(1, 304):
path = 'inputs/medium-' + str(i) + '.in'
G = read_input_file(path)
T = solve(G)
assert is_valid_network(G, T)
total_pairwise_distance += average_pairwise_distance(T)
print(path + " Average Pairwise Distance: {}".format(
average_pairwise_distance(T)))
path_string = re.split('[/.]', path)
write_output_file(T, 'outputs/' + path_string[1] + '.out')
print(" Total Average Medium Pairwise Distance: {}".format(
total_pairwise_distance / 303))
# Here's an example of how to run your solver.
# Usage: python3 solver.py test.in
if __name__ == '__main__':
assert len(sys.argv) == 2
path = sys.argv[1]
G = read_input_file(path)
c, k = solve(G)
assert is_valid_solution(G, c, k)
print("Shortest Path Difference: {}".format(calculate_score(G, c, k)))
write_output_file(G, c, k, 'my_out/30.out')
# For testing a folder of inputs to create a folder of outputs, you can use glob (need to import it)
# if __name__ == '__main__':
# inputs = glob.glob('my_in/*')
# for input_path in inputs:
# output_path = 'my_out/' + basename(normpath(input_path))[:-3] + '.out'
# G = read_input_file(input_path)
# c, k = solve(G)
# assert is_valid_solution(G, c, k)
# distance = calculate_score(G, c, k)
# write_output_file(G, c, k, output_path)
# For testing a folder of inputs to create a folder of outputs, you can use glob (need to import it)
# if __name__ == '__main__':
for u, v, w in G.edges.data('weight'):
cur = average_pairwise_distance(T)
if u in nx.nodes(T) and v not in nx.nodes(T):
T_star.add_node(v)
T_star.add_edge(u, v, weight=w)
if average_pairwise_distance(T_star) < cur:
T.add_node(v)
T.add_edge(u, v, weight=w)
else:
T_star.remove_edge(u, v)
T_star.remove_node(v)
elif v in nx.nodes(T) and u not in nx.nodes(T):
T_star.add_node(u)
T_star.add_edge(v, u, weight=w)
if average_pairwise_distance(T_star) < cur:
T.add_node(u)
T.add_edge(v, u, weight=w)
else:
T_star.remove_edge(v, u)
T_star.remove_node(u)
new = average_pairwise_distance(T)
if new < old:
if is_valid_network(G, T):
write_output_file(T, f"{output_dir}/{graph_name}.out")
print("Overwritten %s" % (graph_name))
else:
continue
else:
continue
maxLenPath = length
return nodeToRemove
# Here's an example of how to run your solver.
# Usage: python3 solver.py test.in
if __name__ == '__main__':
assert len(sys.argv) == 2
path = sys.argv[1]
print(path)
G = read_input_file(path)
c, k = solve(G)
assert is_valid_solution(G, c, k)
print("Shortest Path Difference: {}".format(calculate_score(G, c, k)))
write_output_file(G, c, k, 'outputs' + path[6:-2] + 'out')
# For testing a folder of inputs to create a folder of outputs, you can use glob (need to import it)
# if __name__ == '__main__':
# inputs = glob.glob('inputs/large/*')
# for input_path in inputs:
# print(input_path)
# output_path = 'outputs/large/' + basename(normpath(input_path))[:-3] + '.out'
# G = read_input_file(input_path)
# c, k = solve(G)
# assert is_valid_solution(G, c, k)
# distance = calculate_score(G, c, k)
# write_output_file(G, c, k, output_path)
T.add_edge(node,
node2,
weight=G.get_edge_data(node, node2)['weight'])
new_average = average_pairwise_distance(T)
if new_average > current_average:
T.remove_node(node2)
#T.remove_edge(node, node2)
else:
current_average = new_average
print("Adding an edge between", node, "and", node2,
"yields average", new_average)
print("Dominating vertices:", [node for node in T])
return T
# Here's an example of how to run your solver.
# Usage: python3 solver.py test.in
if __name__ == '__main__':
assert len(sys.argv) == 2
path = sys.argv[1]
G = read_input_file(path)
T = solve(G)
assert is_valid_network(G, T)
print("Average pairwise distance: {}".format(
average_pairwise_distance(T)))
write_output_file(T, 'out/test.out')
room += 1
D[25] = room
D[31] = room
room += 1
D[26] = room
D[29] = room
room += 1
D[27] = room
D[49] = room
room += 1
D[30] = room
D[48] = room
room += 1
D[32] = room
D[38] = room
room += 1
D[33] = room
D[45] = room
room += 1
D[35] = room
D[36] = room
room += 1
D[40] = room
D[42] = room
room += 1
k = len(set(D.values()))
assert is_valid_solution(D, G, s, k)
print("Total Happiness: {}".format(calculate_happiness(D, G)))
output_path = "out/other/large-169.out"
write_output_file(D, output_path)
# Usage: python3 solver.py test.in
if __name__ == '__main__':
assert len(sys.argv) == 2
path = sys.argv[1]
G, s = read_input_file(path)
start = time.time()
D, k = solve(G, s)
end = time.time()
assert is_valid_solution(D, G, s, k)
print("Total Happiness: {}".format(calculate_happiness(D, G)))
print("Solving took {} seconds.".format(end - start))
if path[-3:] == ".in":
write_output_file(D, f'{path[:-3]}.out')
else:
write_output_file(D, f'test/test.out')
# For testing a folder of inputs to create a folder of outputs, you can use glob (need to import it)
# if __name__ == '__main__':
# inputs = glob.glob('file_path/inputs/*')
# for input_path in inputs:
# output_path = 'file_path/outputs/' + basename(normpath(input_path))[:-3] + '.out'
# G, s = read_input_file(input_path, 100)
# D, k = solve(G, s)
# assert is_valid_solution(D, G, s, k)
# cost_t = calculate_happiness(T)
# write_output_file(D, output_path)