# 数组

704.二分查找：https://leetcode.cn/problems/binary-search/

80.删除有序数组中的重复项II：https://leetcode.cn/problems/remove-duplicates-from-sorted-array-ii

977.有序数组的平方：https://leetcode.cn/problems/squares-of-a-sorted-array/

# 链表

707.设计链表：https://leetcode.cn/problems/design-linked-list/

206.反转链表：https://leetcode.cn/problems/reverse-linked-list/

92.反转链表II：https://leetcode.cn/problems/reverse-linked-list-ii/

61.旋转链表：https://leetcode.cn/problems/rotate-list/

# 栈与队列

232.用栈实现队列：https://leetcode.cn/problems/implement-queue-using-stacks/

225.用队列实现栈：https://leetcode.cn/problems/implement-stack-using-queues/

347.前K个高频元素：https://leetcode.cn/problems/top-k-frequent-elements/

239.滑动窗口最大值：https://leetcode.cn/problems/sliding-window-maximum/

# 二叉树

105.从前序与中序遍历构造二叉树：https://leetcode.cn/problems/construct-binary-tree-from-preorder-and-inorder-traversal/

117.填充每个节点的下一个右侧节点指针II：https://leetcode.cn/problems/populating-next-right-pointers-in-each-node-ii

236.二叉树的最近公共祖先：https://leetcode.cn/problems/lowest-common-ancestor-of-a-binary-tree/

129.求根节点到叶节点数字之和：https://leetcode.cn/problems/sum-root-to-leaf-numbers/

102.二叉树的层序遍历：https://leetcode.cn/problems/binary-tree-level-order-traversal/

530.二叉搜索树的最小绝对差：https://leetcode.cn/problems/minimum-absolute-difference-in-bst/

# 图

200.岛屿数量：https://leetcode.cn/problems/number-of-islands/

207.课程表：https://leetcode.cn/problems/course-schedule/

210.课程表II：https://leetcode.cn/problems/course-schedule-ii/