Union find - cocoder39/coco39_LC GitHub Wiki

Data structure

• 305. Number of Islands II(200. Number of Islands)
• 130. Surrounded Regions
• 128. Longest Consecutive Sequence (hash, bucket, union find)
• 721. Accounts Merge
• 839. Similar String Groups

swap elements

• 1722. Minimize Hamming Distance After Swap Operations
• 1202. Smallest String With Swaps