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This code generates a file that gets a score of 0.61758 at http://www.kaggle.com/c/FacebookRecruiting/
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import csv | |
r = csv.reader(open('train.csv','r')) | |
r.next() | |
edges = set() | |
#commutative_graph = dict() | |
for edge in r: | |
edges.add((edge[0], edge[1])) | |
# commutative_graph.setdefault(edge[0], set()).add(edge[1]) | |
# commutative_graph.setdefault(edge[1], set()).add(edge[0]) | |
missing_edges = set() | |
for edge in edges: | |
if (edge[1], edge[0]) not in edges: | |
missing_edges.add((edge[1], edge[0])) | |
missing_graph = dict() | |
for edge in missing_edges: | |
missing_graph.setdefault(edge[0], set()).add(edge[1]) | |
r = csv.reader(open('test.csv','r')) | |
r.next() | |
test_list = list() | |
for line in r: | |
test_list.append(line[0]) | |
test_lists = dict() | |
for node in test_list: | |
test_lists[node] = list(missing_graph.get(node, set())) | |
file = open('output.csv','w') | |
w = csv.writer(file) | |
w.writerow(['source_node','destination_nodes']) | |
for node in test_list: | |
w.writerow([node, " ".join(test_lists[node][0:10])]) | |
file.close() |
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