## 并查集

| \# | 题名 | 题解 | 通过率 | 难度 | 出现频率   |
|------|----------------------|-----|--------|----|--------|
|778|[水位上升的泳池中游泳](https://leetcode-cn.com/problems/swim-in-rising-water)   |[14](https://leetcode-cn.com/problems/swim-in-rising-water/solution)|45.3%|困难|45.32%|
|839|[相似字符串组](https://leetcode-cn.com/problems/similar-string-groups)   |[16](https://leetcode-cn.com/problems/similar-string-groups/solution)|28.9%|困难|42.61%|
|128|[最长连续序列](https://leetcode-cn.com/problems/longest-consecutive-sequence)   |[57](https://leetcode-cn.com/problems/longest-consecutive-sequence/solution)|47.0%|困难|41.09%|
|200|[岛屿数量](https://leetcode-cn.com/problems/number-of-islands)   |[125](https://leetcode-cn.com/problems/number-of-islands/solution)|46.3%|中等|39.36%|
|928|[尽量减少恶意软件的传播 II](https://leetcode-cn.com/problems/minimize-malware-spread-ii)   |[7](https://leetcode-cn.com/problems/minimize-malware-spread-ii/solution)|37.9%|困难|35.98%|
|924|[尽量减少恶意软件的传播](https://leetcode-cn.com/problems/minimize-malware-spread)   |[11](https://leetcode-cn.com/problems/minimize-malware-spread/solution)|41.1%|困难|35.98%|
|547|[朋友圈](https://leetcode-cn.com/problems/friend-circles)   |[75](https://leetcode-cn.com/problems/friend-circles/solution)|53.9%|中等|32.02%|
|952|[按公因数计算最大组件大小](https://leetcode-cn.com/problems/largest-component-size-by-common-factor)   |[6](https://leetcode-cn.com/problems/largest-component-size-by-common-factor/solution)|26.7%|困难|27.87%|
|721|[账户合并](https://leetcode-cn.com/problems/accounts-merge)   |[15](https://leetcode-cn.com/problems/accounts-merge/solution)|30.2%|中等|25.72%|
|399|[除法求值](https://leetcode-cn.com/problems/evaluate-division)   |[39](https://leetcode-cn.com/problems/evaluate-division/solution)|52.7%|中等|25.05%|
|1101|[彼此熟识的最早时间](https://leetcode-cn.com/problems/the-earliest-moment-when-everyone-become-friends)   |[4](https://leetcode-cn.com/problems/the-earliest-moment-when-everyone-become-friends/solution)|62.2%|中等|19.08%|
|305|[岛屿数量 II](https://leetcode-cn.com/problems/number-of-islands-ii)   |[11](https://leetcode-cn.com/problems/number-of-islands-ii/solution)|29.6%|困难|19.08%|
|130|[被围绕的区域](https://leetcode-cn.com/problems/surrounded-regions)   |[59](https://leetcode-cn.com/problems/surrounded-regions/solution)|38.6%|中等|18.6%|
|765|[情侣牵手](https://leetcode-cn.com/problems/couples-holding-hands)   |[28](https://leetcode-cn.com/problems/couples-holding-hands/solution)|55.2%|困难|18.03%|
|947|[移除最多的同行或同列石头](https://leetcode-cn.com/problems/most-stones-removed-with-same-row-or-column)   |[7](https://leetcode-cn.com/problems/most-stones-removed-with-same-row-or-column/solution)|45.5%|中等|15.23%|
|685|[冗余连接 II](https://leetcode-cn.com/problems/redundant-connection-ii)   |[12](https://leetcode-cn.com/problems/redundant-connection-ii/solution)|32.5%|困难|13.94%|
|990|[等式方程的可满足性](https://leetcode-cn.com/problems/satisfiability-of-equality-equations)   |[18](https://leetcode-cn.com/problems/satisfiability-of-equality-equations/solution)|37.2%|中等|12.2%|
|323|[无向图中连通分量的数目](https://leetcode-cn.com/problems/number-of-connected-components-in-an-undirected-graph)   |[21](https://leetcode-cn.com/problems/number-of-connected-components-in-an-undirected-graph/solution)|52.7%|中等|11.18%|
|1202|[交换字符串中的元素](https://leetcode-cn.com/problems/smallest-string-with-swaps)   |[12](https://leetcode-cn.com/problems/smallest-string-with-swaps/solution)|26.5%|中等|10.72%|
|684|[冗余连接](https://leetcode-cn.com/problems/redundant-connection)   |[35](https://leetcode-cn.com/problems/redundant-connection/solution)|54.6%|中等|5.37%|
|1168|[水资源分配优化](https://leetcode-cn.com/problems/optimize-water-distribution-in-a-village)   |[5](https://leetcode-cn.com/problems/optimize-water-distribution-in-a-village/solution)|36.4%|困难|&nbsp;|
|1135|[最低成本联通所有城市](https://leetcode-cn.com/problems/connecting-cities-with-minimum-cost)   |[5](https://leetcode-cn.com/problems/connecting-cities-with-minimum-cost/solution)|38.4%|中等|&nbsp;|
|1102|[得分最高的路径](https://leetcode-cn.com/problems/path-with-maximum-minimum-value)   |[11](https://leetcode-cn.com/problems/path-with-maximum-minimum-value/solution)|25.8%|中等|&nbsp;|
|1061|[按字典序排列最小的等效字符串](https://leetcode-cn.com/problems/lexicographically-smallest-equivalent-string)   |[7](https://leetcode-cn.com/problems/lexicographically-smallest-equivalent-string/solution)|46.6%|中等|&nbsp;|
|959|[由斜杠划分区域](https://leetcode-cn.com/problems/regions-cut-by-slashes)   |[11](https://leetcode-cn.com/problems/regions-cut-by-slashes/solution)|63.1%|中等|&nbsp;|
|803|[打砖块](https://leetcode-cn.com/problems/bricks-falling-when-hit)   |[10](https://leetcode-cn.com/problems/bricks-falling-when-hit/solution)|22.5%|困难|&nbsp;|
|737|[句子相似性 II](https://leetcode-cn.com/problems/sentence-similarity-ii)   |[6](https://leetcode-cn.com/problems/sentence-similarity-ii/solution)|36.0%|中等|&nbsp;|
|261|[以图判树](https://leetcode-cn.com/problems/graph-valid-tree)   |[19](https://leetcode-cn.com/problems/graph-valid-tree/solution)|42.7%|中等|&nbsp;|
