Hay cruces X68547

Statement

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Programa una función hay_cruces(M) que, dada una matriz de dimensiones fil*col (para fil,col ≥ 3) cuyos elementos son "-" y "*", devuelva True cuando haya al menos una cruz. Una cruz es un patrón:

-*-

***

-*-

Sample session

>>> M=[["-", "*", "-", "-"],
...    ["*", "*", "*", "*"],
...    ["-", "*", "-", "-"]]
>>> hay_cruces(M)
True
>>> M=[["-", "-", "-"],
...    ["*", "*", "*"],
...    ["-", "*", "-"],
...    ["-", "-", "-"]]
>>> hay_cruces(M)
False

Information

Author: InfBesos
Language: Spanish
Other languages: Catalan English
Official solutions: Python
User solutions: Python