És la matriu identitat?. X21539


Statement
 

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Public test cases

  • Input

    1 0 0 0
0 1 0 0
0 0 1 0
0 0 0 1

    Output

    True

  • Input

    1 0 0
1 1 0
0 0 1

    Output

    False

  • Input

    1 0 0
0 1 0
0 0 0

    Output

    False
    • Information
    Author
    Jaume Baixeries
    Language
    Catalan
    Official solutions
    Python
    User solutions
    Python