32 lines
851 B
Python
32 lines
851 B
Python
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#!/usr/bin/env python3
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import sys
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def delta_frequency(f = sys.stdin):
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df = 0
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frequency_count = {0: 1}
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frequency_list = []
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for l in f.readlines():
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frequency_list.append(l)
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first = None
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iteration = 1
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df_first_iteration = None
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while first is None:
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for l in frequency_list:
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df += int(l)
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if df not in frequency_count:
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frequency_count[df] = 1
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else:
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frequency_count[df] = frequency_count[df] + 1
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if not first:
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if frequency_count[df] >= 2:
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first = df
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if df_first_iteration is None:
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df_first_iteration = df
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print(df_first_iteration)
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if first is not None:
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print("First duplicate frequency: {}".format(first))
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if __name__ == '__main__':
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delta_frequency()
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