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40 lines
935 B
Python
40 lines
935 B
Python
"""
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https://www.hackerrank.com/challenges/abbr/problem
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You can perform the following operation on some string, :
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1. Capitalize zero or more of 's lowercase letters at some index i
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(i.e., make them uppercase).
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2. Delete all of the remaining lowercase letters in .
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Example:
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a=daBcd and b="ABC"
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daBcd -> capitalize a and c(dABCd) -> remove d (ABC)
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"""
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def abbr(a: str, b: str) -> bool:
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"""
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>>> abbr("daBcd", "ABC")
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True
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>>> abbr("dBcd", "ABC")
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False
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"""
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n = len(a)
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m = len(b)
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dp = [[False for _ in range(m + 1)] for _ in range(n + 1)]
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dp[0][0] = True
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for i in range(n):
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for j in range(m + 1):
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if dp[i][j]:
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if j < m and a[i].upper() == b[j]:
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dp[i + 1][j + 1] = True
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if a[i].islower():
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dp[i + 1][j] = True
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return dp[n][m]
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if __name__ == "__main__":
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import doctest
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doctest.testmod()
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