10_NumPy_11.py #

import numpy as np

# A is a 2-d array


def get_column_from_bottom_to_top(A, c):
    return A[::-1, c]


def get_odd_rows(A):
    return A[1::2, :]


def get_even_column_last_row(A):
    return A[-1, ::2]


def get_diagonal1(A):  # A is a square matrix
    return A.diagonal()


def get_diagonal2(A):  # A is a square matrix
    # from top-right corner down to bottom-left corner
    return A[:, ::-1].diagonal()


exec(input().strip())  # ตอ้ งมคี ำสั่งนี้ ตรงนี้ตอนสง่ ให้Grader ตรวจ