24. Swap Nodes in Pairs

LeetCode 題目列表 === ### Linked List - [24. Swap Nodes in Pairs](https://hackmd.io/@Ji0m0/HkLA_CoZd) - [61. Rotate List](https://hackmd.io/@Ji0m0/BJRWc1Ymu) - [82. Remove Duplicates from Sorted List II](https://hackmd.io/@Ji0m0/HyH6Pmimu) - [86. Partition List](https://hackmd.io/@Ji0m0/rkYOjbTGu) - [138. Copy List with Random Pointer](https://hackmd.io/@Ji0m0/rkgMhIPVO) - [141. Linked List Cycle](https://hackmd.io/@Ji0m0/SJP448Oo4) - [206. Reverse Linked List](https://hackmd.io/@Ji0m0/B1ykTY3IH) ### Tree - [94. Binary Tree Inorder Traversal](https://hackmd.io/@Ji0m0/HyAgG6bU_) - [98. Validate Binary Search Tree](https://hackmd.io/@Ji0m0/BkgKmiIdO) - [99. Recover Binary Search Tree](https://hackmd.io/@Ji0m0/HkgYrlU3_) - [100. Same Tree](https://hackmd.io/@Ji0m0/BkaWrfnvd) - [101. Symmetric Tree](https://hackmd.io/@Ji0m0/SynIt3jv_) - [108. Convert Sorted Array to Binary Search Tree](https://hackmd.io/@Ji0m0/SkL6lS-Ku) - [110. Balanced Binary Tree](https://hackmd.io/@Ji0m0/SJ7nVJww_) - [112. Path Sum](https://hackmd.io/@Ji0m0/B16tbJ5FF) - [114. Flatten Binary Tree to Linked List](https://hackmd.io/@Ji0m0/S1K48P5AO) - [144. Binary Tree Preorder Traversal](https://hackmd.io/@Ji0m0/S1_VMT-L_) - [145. Binary Tree Postorder Traversal](https://hackmd.io/@Ji0m0/rybdMTbLO) - [199. Binary Tree Right Side View](https://hackmd.io/@Ji0m0/H1xdM9ocd) ### Graph - [133. Clone Graph](https://hackmd.io/@Ji0m0/rk3SWptau) ### DFS & BFS - [116. Populating Next Right Pointers in Each Node](https://hackmd.io/@Ji0m0/ryxV0375O) - [129. Sum Root to Leaf Numbers](https://hackmd.io/@Ji0m0/HJJQnPwod) - [131. Palindrome Partitioning](https://hackmd.io/@Ji0m0/S1udpfIo_) ### Stack - [1209. Remove All Adjencent Duplicates in String II](https://hackmd.io/@Ji0m0/BJrR6iAvS) ### Sliding Window - [1208. Get Equal Substrings Within Budget](https://hackmd.io/@Ji0m0/SyV-30B_S) ### Optimization - [1221. Split a String in Balanced Strings](https://hackmd.io/@Ji0m0/SyhluDxKS) ### [題目分類表](https://docs.google.com/spreadsheets/d/1-1SVyMDPEPgOfnANystZfHPcPLOE_0oaUSDabSRi5a4/edit#gid=0)