35 lines
724 B
Python
35 lines
724 B
Python
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with open('day2-input') as file:
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data = file.readlines()
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lines = [d.rstrip('\n') for d in data]
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twos = 0
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threes = 0
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for line in lines:
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charcounts = {}
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for c in line:
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if c in charcounts:
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charcounts[c] += 1
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else:
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charcounts[c] = 1
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if 2 in charcounts.values():
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twos += 1
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if 3 in charcounts.values():
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threes += 1
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print(twos * threes) # Part 1
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def diff(s1, s2):
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count = 0
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common = []
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for c1, c2 in zip(s1, s2):
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if c1 != c2:
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count += 1
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else:
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common.append(c1)
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return count, common
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for i, line in enumerate(lines):
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for line2 in lines[i:]:
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count, common = diff(line, line2)
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if count == 1:
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print(line, line2, ''.join(common)) # Part 2
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break
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