[newSolution]Who can add 1 more problem of LeetCode 1391

[LetMeFly666]

By Github Actions | 1391.检查网格中是否存在有效路径 | 2026-04-27

[1problem1day]

This issue was automatically added to the project.
🕒 Time (Beijing, UTC+8): 2026/4/27 00:37:26
🤖 Triggered by 1problem1day Bot according to action file