Cast header values to integers
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				@ -1,11 +1,10 @@
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from sys import argv
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from pandas import read_table
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					from pandas import read_table
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def read_header(filename):
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					def read_header(filename):
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    with open(filename, "r") as f:
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					    with open(filename, "r") as f:
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        header = f.readline().split()
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					        header = f.readline().split()
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    return header[0], header[1]
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					    return int(header[0]), int(header[1])
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def parse_file(filename):
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					def parse_file(filename):
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@ -14,11 +13,3 @@ def parse_file(filename):
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        filename, names=["source", "destination", "distance"], sep=" ", skiprows=[0]
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					        filename, names=["source", "destination", "distance"], sep=" ", skiprows=[0]
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    )
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					    )
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    return n, m, df
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					    return n, m, df
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def main():
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    parse_file(argv[1])
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if __name__ == "__main__":
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    main()
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