This paste expires on 2023-05-28 17:54:22.970567. Repaste, or download this paste. . Pasted through web.

>>> visited
[[False, False, False], [False, False, False], [False, False, False]]
>>> visited[1][0] = True
>>> visited
[[True, False, False], [True, False, False], [True, False, False]]
Filename: None. Size: 191b. View raw, , hex, or download this file.