update,
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22
max015/T08/lowest.py
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22
max015/T08/lowest.py
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files = ['./input-7-1.txt', './input-7-2.txt']
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for f in files:
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with open(f,'r') as fi:
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lowest_rate = {}
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lines = fi.readlines()
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for l in lines:
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if (l != '-1'):
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[origin_port, destination_port, shipping_rate, carrier_name] = l.strip().split(' ')
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shipping_rate = float(shipping_rate)
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if (destination_port in lowest_rate.keys()):
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if shipping_rate < lowest_rate[destination_port]['shipping_rate'] :
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lowest_rate[destination_port] = {'origin_port': origin_port, 'destination_port': destination_port, 'shipping_rate': shipping_rate, 'carrier_name': carrier_name}
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else:
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lowest_rate[destination_port] = {'origin_port': origin_port, 'destination_port': destination_port, 'shipping_rate': shipping_rate, 'carrier_name': carrier_name}
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print(f)
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for v in lowest_rate.values():
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print(f"The lowest shipping rate from {v['origin_port']}' to {v['destination_port']} is {v['shipping_rate']}.")
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print()
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