Since the user data in leetcode.cn can't sync to leetcode.com:

• https://leetcode.com/discuss/post/4108923/lc-replied-sync-progress-from-leetcodecn-yfie
• https://leetcode.cn/discuss/post/3157427/zi-xun-zhong-guo-zhan-de-shu-ju-shi-fou-967wq

I'm going to start a new LeetCode journey from zero, and here's my two accounts:

• (old) https://leetcode.cn/liqwang
• (new) https://leetcode.com/liqwang