Python:实现searching in sorted matrix在排序矩阵中搜索算法
from __future__ import annotations
def search_in_a_sorted_matrix(
mat: list[list], m: int, n: int, key: int | float
) -> None:
i, j = m - 1, 0
while i >= 0 and j < n:
if key == mat[i][j]:
print(f"Key {key} found at row- {i + 1} column- {j + 1}")
return
if key < mat[i][j]:
i -= 1
else:
j += 1
print(f"Key {key} not found")
def main():
mat = [[2, 5, 7], [4, 8, 13], [9, 11, 15], [12, 17, 20]]
x = int(input("Enter the element to be searched:"))
print(mat)
search_in_a_sorted_matrix(mat, len(mat), len(mat[0]), x)
if __name__ == "__main__":
import doctest
doctest.testmod()
main()
