There are crosses X68547

Statement

Program a function @hay_cruces(M)@ which, given an array of dimensions $fil * col$ (for $fil, col \geq 3$ ) whose elements are "-" and "*", returns True when there is at least one cross. A cross is a pattern:

-*-

***

-*-

Sample session

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

Information

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