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Fix possible error in longest_common_subsequence.py (#1163)

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The comparison at line 53 was not checking if (j > 0).
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Rwithik Manoj 2019-08-31 17:10:50 +05:30 committed by Christian Clauss
parent d327f10702
commit d4151bd516
1 changed files with 1 additions and 1 deletions
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dynamic_programming/longest_common_subsequence.py
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@ -50,7 +50,7 @@ def longest_common_subsequence(x: str, y: str):
seq = "" seq = ""
i, j = m, n i, j = m, n
while i > 0 and i > 0: while i > 0 and j > 0:
if x[i - 1] == y[j - 1]: if x[i - 1] == y[j - 1]:
match = 1 match = 1
else: else: