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文章目录

• 剑指Offer题集（[力扣题单](https://leetcode.cn/problemset/all/?listId=lcof&page=1)）
• • [剑指 Offer 03. 数组中重复的数字](https://leetcode.cn/problems/shu-zu-zhong-zhong-fu-de-shu-zi-lcof/)
  • [剑指 Offer 04. 二维数组中的查找](https://leetcode.cn/problems/er-wei-shu-zu-zhong-de-cha-zhao-lcof/)
  • [剑指 Offer 05. 替换空格](https://leetcode.cn/problems/ti-huan-kong-ge-lcof/)
  • [剑指 Offer 06. 从尾到头打印链表](https://leetcode.cn/problems/cong-wei-dao-tou-da-yin-lian-biao-lcof/)
  • 🎃[剑指 Offer 07. 重建二叉树[前序+中序]](https://leetcode.cn/problems/zhong-jian-er-cha-shu-lcof/)
  • • 106.重建二叉树[后序+中序]
    • [889. 根据前序和后序遍历构造二叉树](https://leetcode.cn/problems/construct-binary-tree-from-preorder-and-postorder-traversal/)
  • [剑指 Offer 09. 用两个栈实现队列](https://leetcode.cn/problems/yong-liang-ge-zhan-shi-xian-dui-lie-lcof/)
  • [剑指 Offer 10- I. 斐波那契数列](https://leetcode.cn/problems/fei-bo-na-qi-shu-lie-lcof/)
  • [剑指 Offer 10- II. 青蛙跳台阶问题【爬楼梯】](https://leetcode.cn/problems/qing-wa-tiao-tai-jie-wen-ti-lcof/)
  • [剑指 Offer 11. 旋转数组的最小数字](https://leetcode.cn/problems/xuan-zhuan-shu-zu-de-zui-xiao-shu-zi-lcof/)
  • [剑指 Offer 12. 矩阵中的路径](https://leetcode.cn/problems/ju-zhen-zhong-de-lu-jing-lcof/)
  • [剑指 Offer 13. 机器人的运动范围](https://leetcode.cn/problems/ji-qi-ren-de-yun-dong-fan-wei-lcof/)
  • 🎉[剑指 Offer 14- I. 剪绳子](https://leetcode.cn/problems/jian-sheng-zi-lcof/)
  • [剑指 Offer 14- II. 剪绳子 II](https://leetcode.cn/problems/jian-sheng-zi-ii-lcof/)
  • [剑指 Offer 15. 二进制中1的个数](https://leetcode.cn/problems/er-jin-zhi-zhong-1de-ge-shu-lcof/)
  • [剑指 Offer 16. 数值的整数次方](https://leetcode.cn/problems/shu-zhi-de-zheng-shu-ci-fang-lcof/)
  • [剑指 Offer 17. 打印从1到最大的n位数](https://leetcode.cn/problems/da-yin-cong-1dao-zui-da-de-nwei-shu-lcof/)
  • [剑指 Offer 18. 删除链表的节点](https://leetcode.cn/problems/shan-chu-lian-biao-de-jie-dian-lcof/)
  • 🎉[剑指 Offer 19. 正则表达式匹配](https://leetcode.cn/problems/zheng-ze-biao-da-shi-pi-pei-lcof/)
  • [剑指 Offer 20. 表示数值的字符串](https://leetcode.cn/problems/biao-shi-shu-zhi-de-zi-fu-chuan-lcof/)
  • [剑指 Offer 21. 调整数组顺序使奇数位于偶数前面](https://leetcode.cn/problems/diao-zheng-shu-zu-shun-xu-shi-qi-shu-wei-yu-ou-shu-qian-mian-lcof/)
  • [剑指 Offer 22. 链表中倒数第k个节点](https://leetcode.cn/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof/)
  • [剑指 Offer 24. 反转链表](https://leetcode.cn/problems/fan-zhuan-lian-biao-lcof/)
  • [剑指 Offer 25. 合并两个排序的链表](https://leetcode.cn/problems/he-bing-liang-ge-pai-xu-de-lian-biao-lcof/)
  • 🎉[剑指 Offer 26. 树的子结构](https://leetcode.cn/problems/shu-de-zi-jie-gou-lcof/)
  • [剑指 Offer 27. 二叉树的镜像](https://leetcode.cn/problems/er-cha-shu-de-jing-xiang-lcof/)
  • [剑指 Offer 28. 对称的二叉树](https://leetcode.cn/problems/dui-cheng-de-er-cha-shu-lcof/)
  • [剑指 Offer 29. 顺时针打印矩阵](https://leetcode.cn/problems/shun-shi-zhen-da-yin-ju-zhen-lcof/)
  • [剑指 Offer 30. 包含min函数的栈](https://leetcode.cn/problems/bao-han-minhan-shu-de-zhan-lcof/)
  • [剑指 Offer 31. 栈的压入、弹出序列](https://leetcode.cn/problems/zhan-de-ya-ru-dan-chu-xu-lie-lcof/)
  • [剑指 Offer 32 - I. 从上到下打印二叉树](https://leetcode.cn/problems/cong-shang-dao-xia-da-yin-er-cha-shu-lcof/)
  • [剑指 Offer 32 - II. 从上到下打印二叉树 II](https://leetcode.cn/problems/cong-shang-dao-xia-da-yin-er-cha-shu-ii-lcof/)
  • [剑指 Offer 32 - III. 从上到下打印二叉树 III](https://leetcode.cn/problems/cong-shang-dao-xia-da-yin-er-cha-shu-iii-lcof/)
  • 🎃[剑指 Offer 33. 二叉搜索树的后序遍历序列](https://leetcode.cn/problems/er-cha-sou-suo-shu-de-hou-xu-bian-li-xu-lie-lcof/)
  • [剑指 Offer 34. 二叉树中和为某一值的路径](https://leetcode.cn/problems/er-cha-shu-zhong-he-wei-mou-yi-zhi-de-lu-jing-lcof/)
  • [剑指 Offer 35. 复杂链表的复制](https://leetcode.cn/problems/fu-za-lian-biao-de-fu-zhi-lcof/)
  • 🎃[剑指 Offer 36. 二叉搜索树与双向链表](https://leetcode.cn/problems/er-cha-sou-suo-shu-yu-shuang-xiang-lian-biao-lcof/)
  • 🎉[剑指 Offer 37. 序列化二叉树](https://leetcode.cn/problems/xu-lie-hua-er-cha-shu-lcof/)
  • [剑指 Offer 38. 字符串的排列](https://leetcode.cn/problems/zi-fu-chuan-de-pai-lie-lcof/)
  • [剑指 Offer 39. 数组中出现次数超过一半的数字](https://leetcode.cn/problems/shu-zu-zhong-chu-xian-ci-shu-chao-guo-yi-ban-de-shu-zi-lcof/)
  • [剑指 Offer 40. 最小的k个数](https://leetcode.cn/problems/zui-xiao-de-kge-shu-lcof/)
  • 🎉[剑指 Offer 41. 数据流中的中位数](https://leetcode.cn/problems/shu-ju-liu-zhong-de-zhong-wei-shu-lcof/)
  • [剑指 Offer 42. 连续子数组的最大和](https://leetcode.cn/problems/lian-xu-zi-shu-zu-de-zui-da-he-lcof/)
  • 🎉[剑指 Offer 43. 1～n 整数中 1 出现的次数](https://leetcode.cn/problems/1nzheng-shu-zhong-1chu-xian-de-ci-shu-lcof/)【数位DP】
  • 🎃[剑指 Offer 44. 数字序列中某一位的数字](https://leetcode.cn/problems/shu-zi-xu-lie-zhong-mou-yi-wei-de-shu-zi-lcof/)
  • 🎃[剑指 Offer 45. 把数组排成最小的数](https://leetcode.cn/problems/ba-shu-zu-pai-cheng-zui-xiao-de-shu-lcof/)
  • [剑指 Offer 46. 把数字翻译成字符串](https://leetcode.cn/problems/ba-shu-zi-fan-yi-cheng-zi-fu-chuan-lcof/)
  • [剑指 Offer 47. 礼物的最大价值](https://leetcode.cn/problems/li-wu-de-zui-da-jie-zhi-lcof/)
  • [剑指 Offer 48. 最长不含重复字符的子字符串](https://leetcode.cn/problems/zui-chang-bu-han-zhong-fu-zi-fu-de-zi-zi-fu-chuan-lcof/)
  • 🎉[剑指 Offer 49. 丑数](https://leetcode.cn/problems/chou-shu-lcof/)
  • [剑指 Offer 50. 第一个只出现一次的字符](https://leetcode.cn/problems/di-yi-ge-zhi-chu-xian-yi-ci-de-zi-fu-lcof/)
  • 🎉[剑指 Offer 51. 数组中的逆序对](https://leetcode.cn/problems/shu-zu-zhong-de-ni-xu-dui-lcof/)
  • 💕[剑指 Offer 52. 两个链表的第一个公共节点](https://leetcode.cn/problems/liang-ge-lian-biao-de-di-yi-ge-gong-gong-jie-dian-lcof/)
  • [剑指 Offer 53 - I. 在排序数组中查找数字 I](https://leetcode.cn/problems/zai-pai-xu-shu-zu-zhong-cha-zhao-shu-zi-lcof/)
  • [剑指 Offer 53 - II. 0～n-1中缺失的数字](https://leetcode.cn/problems/que-shi-de-shu-zi-lcof/)
  • [剑指 Offer 54. 二叉搜索树的第k大节点](https://leetcode.cn/problems/er-cha-sou-suo-shu-de-di-kda-jie-dian-lcof/)
  • [剑指 Offer 55 - I. 二叉树的深度](https://leetcode.cn/problems/er-cha-shu-de-shen-du-lcof/)
  • [剑指 Offer 55 - II. 平衡二叉树](https://leetcode.cn/problems/ping-heng-er-cha-shu-lcof/)
  • 🎃[剑指 Offer 56 - I. 数组中数字出现的次数](https://leetcode.cn/problems/shu-zu-zhong-shu-zi-chu-xian-de-ci-shu-lcof/)
  • [剑指 Offer 56 - II. 数组中数字出现的次数 II](https://leetcode.cn/problems/shu-zu-zhong-shu-zi-chu-xian-de-ci-shu-ii-lcof/)
  • [剑指 Offer 57. 和为s的两个数字](https://leetcode.cn/problems/he-wei-sde-liang-ge-shu-zi-lcof/)
  • [剑指 Offer 57 - II. 和为s的连续正数序列](https://leetcode.cn/problems/he-wei-sde-lian-xu-zheng-shu-xu-lie-lcof/)
  • [剑指 Offer 58 - I. 翻转单词顺序](https://leetcode.cn/problems/fan-zhuan-dan-ci-shun-xu-lcof/)
  • [剑指 Offer 58 - II. 左旋转字符串](https://leetcode.cn/problems/zuo-xuan-zhuan-zi-fu-chuan-lcof/)
  • 🎉[剑指 Offer 59 - I. 滑动窗口的最大值](https://leetcode.cn/problems/hua-dong-chuang-kou-de-zui-da-zhi-lcof/)
  • 🎃[剑指 Offer 59 - II. 队列的最大值](https://leetcode.cn/problems/dui-lie-de-zui-da-zhi-lcof/)
  • 🎃[剑指 Offer 60. n个骰子的点数](https://leetcode.cn/problems/nge-tou-zi-de-dian-shu-lcof/)
  • [剑指 Offer 61. 扑克牌中的顺子](https://leetcode.cn/problems/bu-ke-pai-zhong-de-shun-zi-lcof/)
  • 🎃[剑指 Offer 62. 圆圈中最后剩下的数字](https://leetcode.cn/problems/yuan-quan-zhong-zui-hou-sheng-xia-de-shu-zi-lcof/)
  • 🎉[剑指 Offer 63. 股票的最大利润](https://leetcode.cn/problems/gu-piao-de-zui-da-li-run-lcof/) + 拓展问题
  • [剑指 Offer 64. 求1+2+…+n](https://leetcode.cn/problems/qiu-12n-lcof/)
  • [剑指 Offer 65. 不用加减乘除做加法](https://leetcode.cn/problems/bu-yong-jia-jian-cheng-chu-zuo-jia-fa-lcof/)
  • [剑指 Offer 66. 构建乘积数组](https://leetcode.cn/problems/gou-jian-cheng-ji-shu-zu-lcof/)
  • 🎃[剑指 Offer 67. 把字符串转换成整数](https://leetcode.cn/problems/ba-zi-fu-chuan-zhuan-huan-cheng-zheng-shu-lcof/)
  • [剑指 Offer 68 - I. 二叉搜索树的最近公共祖先](https://leetcode.cn/problems/er-cha-sou-suo-shu-de-zui-jin-gong-gong-zu-xian-lcof/)
  • [剑指 Offer 68 - II. 二叉树的最近公共祖先](https://leetcode.cn/problems/er-cha-shu-de-zui-jin-gong-gong-zu-xian-lcof/)