[newSolution]Who can add 1 more problem of LeetCode 1520

[LetMeFly666]

By Github Actions | 1520.最多的不重叠子字符串 | 2026-09-18

[1problem1day]

This issue was automatically added to the project.
🕒 Time (Beijing, UTC+8): 2026/9/18 03:29:19
🤖 Triggered by 1problem1day Bot according to action file