import numpy as np
def main():
""" 你寫的東西 """
while True:
try:
row, col = map(int, input().split())
data1 = np.zeros([0, col])
for i in range(row):
rowi = np.array(list(map(int, input().split())))
data1 = np.vstack((data1, rowi))
new = data1.T
# 印出matrix
for i in new:
print(" ".join(str(int(j)) for j in i))
except:
break
if __name__ == "__main__":
import unittest
import random
from unittest.mock import patch
from io import StringIO
class TestProblem(unittest.TestCase):
def grouper(self, arr: list[int], col: int) -> list[list[int]]:
""" 把一維陣列分割成二維的，每一列都包含指定數量的元素 """
iterators = [iter(arr)] * col
return list(map(list, zip(*iterators)))
def gen_test_cases(self, row: int, col: int) -> tuple[str, str]:
""" 測資用這個函式生 """
chosen = random.sample(range(row * col), row * col)
ipt = self.grouper(chosen, col)
expected = list(map(list, zip(*ipt)))
ipt.insert(0, [row, col])
def to_str(arr: list[list[int]]) -> str:
return "\n".join(" ".join(map(str, line)) for line in arr)
return to_str(ipt), to_str(expected)
# unittest 主循環
@patch('builtins.input')
@patch('sys.stdout', new_callable=StringIO)
def test_random_cases(self, mock_stdout, mock_input):
for _ in range(5): # 測試 5 個隨機案例，隨便改你喜歡的
row = random.randint(2, 10)
col = random.randint(2, 10)
with self.subTest(row=row, col=col):
input_str, expected = self.gen_test_cases(row, col)
mock_input.side_effect = input_str.split('\n')
mock_stdout.truncate(0)
mock_stdout.seek(0)
main()
actual = mock_stdout.getvalue().strip()
self.assertEqual(actual, expected)
unittest.main()
