feat: $ 1494

Author: lucifer

README.md

@@ -221,9 +221,6 @@ leetcode 题解，记录自己的 leetcode 解题之路。
 - [1260. 二维网格迁移](./problems/1260.shift-2d-grid.md)
 - [1332. 删除回文子序列](./problems/1332.remove-palindromic-subsequences.md)
 
-- [高频考题合集（中等难度）](./collections/medium.md)
-- [高频考题合集（困难难度）](./collections/hard.md)
-
 #### 中等难度题目合集
 
 中等题目是力扣比例最大的部分，因此这部分我的题解也是最多的。 大家不要太过追求难题，先把中等难度题目做熟了再说。
@@ -401,12 +398,12 @@ leetcode 题解，记录自己的 leetcode 解题之路。
 - [0032. 最长有效括号](./problems/32.longest-valid-parentheses.md)
 - [0042. 接雨水](./problems/42.trapping-rain-water.md)
 - [0052. N 皇后 II](./problems/52.N-Queens-II.md)
-- [0057. 插入区间](problems/57.insert-interval.md) 🆕
+- [0057. 插入区间](problems/57.insert-interval.md)
 - [0084. 柱状图中最大的矩形](./problems/84.largest-rectangle-in-histogram.md)
 - [0085. 最大矩形](./problems/85.maximal-rectangle.md)
 - [0124. 二叉树中的最大路径和](./problems/124.binary-tree-maximum-path-sum.md)
 - [0128. 最长连续序列](./problems/128.longest-consecutive-sequence.md)
-- [0140. 单词拆分 II](problems/140.word-break-ii.md) 🆕
+- [0140. 单词拆分 II](problems/140.word-break-ii.md)
 - [0145. 二叉树的后序遍历](./problems/145.binary-tree-postorder-traversal.md)
 - [0212. 单词搜索 II](./problems/212.word-search-ii.md)
 - [0239. 滑动窗口最大值](./problems/239.sliding-window-maximum.md)
@@ -425,8 +422,8 @@ leetcode 题解，记录自己的 leetcode 解题之路。
 - [0679. 24 点游戏](./problems/679.24-game.md) 🆕
 - [0715. Range 模块](./problems/715.range-module.md) 🆕
 - [0768. 最多能完成排序的块 II](./problems/768.max-chunks-to-make-sorted-ii.md) 91
-- [0805. 数组的均值分割](./problems/805.split-array-with-same-average.md) 🆕
-- [0839. 相似字符串组](./problems/839.similar-string-groups.md) 🆕
+- [0805. 数组的均值分割](./problems/805.split-array-with-same-average.md)
+- [0839. 相似字符串组](./problems/839.similar-string-groups.md)
 - [0887. 鸡蛋掉落](./problems/887.super-egg-drop.md)
 - [0895. 最大频率栈](./problems/895.maximum-frequency-stack.md)
 - [0975. 奇偶跳](./problems/975.odd-even-jump.md) 🆕
@@ -435,12 +432,13 @@ leetcode 题解，记录自己的 leetcode 解题之路。
 - [1203. 项目管理](./problems/1203.sort-items-by-groups-respecting-dependencies.md) 🆕
 - [1255. 得分最高的单词集合](./problems/1255.maximum-score-words-formed-by-letters.md)
 - [1345. 跳跃游戏 IV](./problems/1435.jump-game-iv.md)
-- [1449. 数位成本和为目标值的最大数字](./problems/1449.form-largest-integer-with-digits-that-add-up-to-target.md) 🆕
-- [1521. 找到最接近目标值的函数值](./problems/1521.find-a-value-of-a-mysterious-function-closest-to-target.md) 🆕
-- [1526. 形成目标数组的子数组最少增加次数](./problems/1526.minimum-number-of-increments-on-subarrays-to-form-a-target-array.md) 🆕
-- [1649. 通过指令创建有序数组](./problems/1649.create-sorted-array-through-instructions.md) 🆕
-- [1671. 得到山形数组的最少删除次数](./problems/1671.minimum-number-of-removals-to-make-mountain-array.md)🆕
-- [1707. 与数组中元素的最大异或值](./problems/5640.maximum-xor-with-an-element-from-array.md) 🆕
+- [1449. 数位成本和为目标值的最大数字](./problems/1449.form-largest-integer-with-digits-that-add-up-to-target.md)
+- [1494. 并行课程 II](./problems/1494.parallel-courses-ii.md) 🆕
+- [1521. 找到最接近目标值的函数值](./problems/1521.find-a-value-of-a-mysterious-function-closest-to-target.md)
+- [1526. 形成目标数组的子数组最少增加次数](./problems/1526.minimum-number-of-increments-on-subarrays-to-form-a-target-array.md)
+- [1649. 通过指令创建有序数组](./problems/1649.create-sorted-array-through-instructions.md)
+- [1671. 得到山形数组的最少删除次数](./problems/1671.minimum-number-of-removals-to-make-mountain-array.md)
+- [1707. 与数组中元素的最大异或值](./problems/5640.maximum-xor-with-an-element-from-array.md)
 
 ## :trident:  anki 卡片
 

SUMMARY.md

@@ -228,54 +228,54 @@
 
 - [第六章 - 高频考题（困难）](collections/hard.md)
 
-  - [LCP 20. 快速公交](problems/lcp20.meChtZ.md) 🆕
-  - [0004. 寻找两个正序数组的中位数](problems/4.median-of-two-sorted-arrays.md)
-  - [0023. 合并 K 个升序链表](problems/23.merge-k-sorted-lists.md)
-  - [0025. K 个一组翻转链表](problems/25.reverse-nodes-in-k-groups.md)
-  - [0030. 串联所有单词的子串](problems/30.substring-with-concatenation-of-all-words.md)
-  - [0032. 最长有效括号](problems/32.longest-valid-parentheses.md)
-  - [0042. 接雨水](problems/42.trapping-rain-water.md)
-  - [0052. N 皇后 II](problems/52.N-Queens-II.md)
+  - [LCP 20. 快速公交](./problems/lcp20.meChtZ.md) 🆕
+  - [0004. 寻找两个正序数组的中位数](./problems/4.median-of-two-sorted-arrays.md)
+  - [0023. 合并 K 个升序链表](./problems/23.merge-k-sorted-lists.md)
+  - [0025. K 个一组翻转链表](./problems/25.reverse-nodes-in-k-groups.md)
+  - [0030. 串联所有单词的子串](./problems/30.substring-with-concatenation-of-all-words.md)
+  - [0032. 最长有效括号](./problems/32.longest-valid-parentheses.md)
+  - [0042. 接雨水](./problems/42.trapping-rain-water.md)
+  - [0052. N 皇后 II](./problems/52.N-Queens-II.md)
   - [0057. 插入区间](problems/57.insert-interval.md)
-  - [0084. 柱状图中最大的矩形](problems/84.largest-rectangle-in-histogram.md)
-  - [0085. 最大矩形](problems/85.maximal-rectangle.md)
-  - [0124. 二叉树中的最大路径和](problems/124.binary-tree-maximum-path-sum.md)
-  - [0128. 最长连续序列](problems/128.longest-consecutive-sequence.md)
+  - [0084. 柱状图中最大的矩形](./problems/84.largest-rectangle-in-histogram.md)
+  - [0085. 最大矩形](./problems/85.maximal-rectangle.md)
+  - [0124. 二叉树中的最大路径和](./problems/124.binary-tree-maximum-path-sum.md)
+  - [0128. 最长连续序列](./problems/128.longest-consecutive-sequence.md)
   - [0140. 单词拆分 II](problems/140.word-break-ii.md)
-  - [0145. 二叉树的后序遍历](problems/145.binary-tree-postorder-traversal.md)
-  - [0212. 单词搜索 II](problems/212.word-search-ii.md)
-  - [0239. 滑动窗口最大值](problems/239.sliding-window-maximum.md)
-  - [0295. 数据流的中位数](problems/295.find-median-from-data-stream.md)
-  - [0297. 二叉树的序列化与反序列化](problems/297.serialize-and-deserialize-binary-tree.md) 91
-  - [0301. 删除无效的括号](problems/301.remove-invalid-parentheses.md)
-  - [0312. 戳气球](problems/312.burst-balloons.md)
-  - [330. 按要求补齐数组](problems/330.patching-array.md) 🆕
-  - [0335. 路径交叉](problems/335.self-crossing.md)
-  - [0460. LFU 缓存](problems/460.lfu-cache.md)
-  - [0472. 连接词](problems/472.concatenated-words.md)
+  - [0145. 二叉树的后序遍历](./problems/145.binary-tree-postorder-traversal.md)
+  - [0212. 单词搜索 II](./problems/212.word-search-ii.md)
+  - [0239. 滑动窗口最大值](./problems/239.sliding-window-maximum.md)
+  - [0295. 数据流的中位数](./problems/295.find-median-from-data-stream.md)
+  - [0297. 二叉树的序列化与反序列化](./problems/297.serialize-and-deserialize-binary-tree.md) 91
+  - [0301. 删除无效的括号](./problems/301.remove-invalid-parentheses.md)
+  - [0312. 戳气球](./problems/312.burst-balloons.md)
+  - [330. 按要求补齐数组](./problems/330.patching-array.md)
+  - [0335. 路径交叉](./problems/335.self-crossing.md)
+  - [0460. LFU 缓存](./problems/460.lfu-cache.md)
+  - [0472. 连接词](./problems/472.concatenated-words.md)
   - [0480. 滑动窗口中位数](./problems/480.sliding-window-median.md) 🆕
   - [0483. 最小好进制](./problems/483.smallest-good-base.md) 🆕
-  - [0488. 祖玛游戏](problems/488.zuma-game.md)
-  - [0493. 翻转对](problems/493.reverse-pairs.md)
+  - [0488. 祖玛游戏](./problems/488.zuma-game.md)
+  - [0493. 翻转对](./problems/493.reverse-pairs.md)
   - [0679. 24 点游戏](./problems/679.24-game.md) 🆕
-  - [0715. Range 模块](problems/715.range-module.md) 🆕
-  - [0768. 最多能完成排序的块 II](problems/768.max-chunks-to-make-sorted-ii.md) 91
-  - [0805. 数组的均值分割](./problems/805.split-array-with-same-average.md) 🆕
-  - [0839. 相似字符串组](./problems/839.similar-string-groups.md) 🆕
-  - [0887. 鸡蛋掉落](problems/887.super-egg-drop.md)
-  - [0895. 最大频率栈](problems/895.maximum-frequency-stack.md)
-  - [0975. 奇偶跳](problems/975.odd-even-jump.md) 🆕
-  - [1032. 字符流](problems/1032.stream-of-characters.md)
-  - [1168. 水资源分配优化](problems/1168.optimize-water-distribution-in-a-village.md)
-  - [1203. 项目管理](problems/1203.sort-items-by-groups-respecting-dependencies.md) 🆕
-  - [1255. 得分最高的单词集合](problems/1255.maximum-score-words-formed-by-letters.md)
-  - [1345. 跳跃游戏 IV](problems/1435.jump-game-iv.md) 🆕
-  - [1449. 数位成本和为目标值的最大数字](problems/1449.form-largest-integer-with-digits-that-add-up-to-target.md) 🆕
-  - [1521. 找到最接近目标值的函数值](./problems/1521.find-a-value-of-a-mysterious-function-closest-to-target.md) 🆕
-  - [1526. 形成目标数组的子数组最少增加次数](./problems/1526.minimum-number-of-increments-on-subarrays-to-form-a-target-array.md) 🆕
-  - [1649. 通过指令创建有序数组](./problems/1649.create-sorted-array-through-instructions.md) 🆕
-  - [1671. 得到山形数组的最少删除次数](./problems/1671.minimum-number-of-removals-to-make-mountain-array.md)🆕
-  - [1697. 检查边长度限制的路径是否存在](./problems/1697.checking-existence-of-edge-length-limited-paths.md) 🆕
-  - [1707. 与数组中元素的最大异或值](./problems/5640.maximum-xor-with-an-element-from-array.md) 🆕
+  - [0715. Range 模块](./problems/715.range-module.md) 🆕
+  - [0768. 最多能完成排序的块 II](./problems/768.max-chunks-to-make-sorted-ii.md) 91
+  - [0805. 数组的均值分割](./problems/805.split-array-with-same-average.md)
+  - [0839. 相似字符串组](./problems/839.similar-string-groups.md)
+  - [0887. 鸡蛋掉落](./problems/887.super-egg-drop.md)
+  - [0895. 最大频率栈](./problems/895.maximum-frequency-stack.md)
+  - [0975. 奇偶跳](./problems/975.odd-even-jump.md) 🆕
+  - [1032. 字符流](./problems/1032.stream-of-characters.md)
+  - [1168. 水资源分配优化](./problems/1168.optimize-water-distribution-in-a-village.md)
+  - [1203. 项目管理](./problems/1203.sort-items-by-groups-respecting-dependencies.md) 🆕
+  - [1255. 得分最高的单词集合](./problems/1255.maximum-score-words-formed-by-letters.md)
+  - [1345. 跳跃游戏 IV](./problems/1435.jump-game-iv.md)
+  - [1449. 数位成本和为目标值的最大数字](./problems/1449.form-largest-integer-with-digits-that-add-up-to-target.md)
+  - [1494. 并行课程 II](./problems/1494.parallel-courses-ii.md) 🆕
+  - [1521. 找到最接近目标值的函数值](./problems/1521.find-a-value-of-a-mysterious-function-closest-to-target.md)
+  - [1526. 形成目标数组的子数组最少增加次数](./problems/1526.minimum-number-of-increments-on-subarrays-to-form-a-target-array.md)
+  - [1649. 通过指令创建有序数组](./problems/1649.create-sorted-array-through-instructions.md)
+  - [1671. 得到山形数组的最少删除次数](./problems/1671.minimum-number-of-removals-to-make-mountain-array.md)
+  - [1707. 与数组中元素的最大异或值](./problems/5640.maximum-xor-with-an-element-from-array.md)
 
 - [后序](epilogue.md)