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Title: GitHub - ljzlearn/leetcode: LeetCode Solutions: A Record of My Problem Solving Journey.( leetcode题解，记录自己的leetcode解题之路。) · GitHub

Open Graph Title: GitHub - ljzlearn/leetcode: LeetCode Solutions: A Record of My Problem Solving Journey.( leetcode题解，记录自己的leetcode解题之路。)

X Title: GitHub - ljzlearn/leetcode: LeetCode Solutions: A Record of My Problem Solving Journey.( leetcode题解，记录自己的leetcode解题之路。)

Description: LeetCode Solutions: A Record of My Problem Solving Journey.( leetcode题解，记录自己的leetcode解题之路。) - ljzlearn/leetcode

Open Graph Description: LeetCode Solutions: A Record of My Problem Solving Journey.( leetcode题解，记录自己的leetcode解题之路。) - ljzlearn/leetcode

X Description: LeetCode Solutions: A Record of My Problem Solving Journey.( leetcode题解，记录自己的leetcode解题之路。) - ljzlearn/leetcode

Mail addresses
azl397985856@gmail.com

Opengraph URL: https://github.com/ljzlearn/leetcode

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direct link

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	https://github.com/ljzlearn/leetcode#食用指南
https://www.zhihu.com/question/24964987/answer/586425979	https://www.zhihu.com/question/24964987/answer/586425979
	https://github.com/ljzlearn/leetcode/blob/master/assets/leetcode-zhihu.jpg
	https://github.com/ljzlearn/leetcode#精彩预告
0042.trapping-rain-water	https://github.com/ljzlearn/leetcode/blob/master/problems/42.trapping-rain-water.md
	https://github.com/ljzlearn/leetcode/blob/master/assets/problems/42.trapping-rain-water-1.png
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	https://github.com/ljzlearn/leetcode/blob/master/assets/problems/backtrack.png
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0454.4-sum-ii	https://github.com/ljzlearn/leetcode/blob/master/problems/454.4-sum-ii.md
	https://github.com/ljzlearn/leetcode/blob/master/assets/problems/454.4-sum-ii.png
	https://github.com/ljzlearn/leetcode#top题目进度
Top 100 Liked Questions	https://leetcode.com/problemset/top-100-liked-questions/
Top Interview Questions	https://leetcode.com/problemset/top-interview-questions/
	https://github.com/ljzlearn/leetcode#传送门
	https://github.com/ljzlearn/leetcode#leetcode-经典题目的解析
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	https://github.com/ljzlearn/leetcode#中等难度
0002. Add Two Numbers	https://github.com/ljzlearn/leetcode/blob/master/problems/2.addTwoNumbers.md
0003. Longest Substring Without Repeating Characters	https://github.com/ljzlearn/leetcode/blob/master/problems/3.longestSubstringWithoutRepeatingCharacters.md
0005.longest-palindromic-substring	https://github.com/ljzlearn/leetcode/blob/master/problems/5.longest-palindromic-substring.md
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0019. Remove Nth Node From End of List	https://github.com/ljzlearn/leetcode/blob/master/problems/19.removeNthNodeFromEndofList.md
0024. Swap Nodes In Pairs	https://github.com/ljzlearn/leetcode/blob/master/problems/24.swapNodesInPairs.md
0029.divide-two-integers	https://github.com/ljzlearn/leetcode/blob/master/problems/29.divide-two-integers.md
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0033.search-in-rotated-sorted-array	https://github.com/ljzlearn/leetcode/blob/master/problems/33.search-in-rotated-sorted-array.md
0039.combination-sum	https://github.com/ljzlearn/leetcode/blob/master/problems/39.combination-sum.md
0040.combination-sum-ii	https://github.com/ljzlearn/leetcode/blob/master/problems/40.combination-sum-ii.md
0046.permutations	https://github.com/ljzlearn/leetcode/blob/master/problems/46.permutations.md
0047.permutations-ii	https://github.com/ljzlearn/leetcode/blob/master/problems/47.permutations-ii.md
0048.rotate-image	https://github.com/ljzlearn/leetcode/blob/master/problems/48.rotate-image.md
0049.group-anagrams	https://github.com/ljzlearn/leetcode/blob/master/problems/49.group-anagrams.md
0055.jump-game	https://github.com/ljzlearn/leetcode/blob/master/problems/55.jump-game.md
0056.merge-intervals	https://github.com/ljzlearn/leetcode/blob/master/problems/56.merge-intervals.md
0062.unique-paths	https://github.com/ljzlearn/leetcode/blob/master/problems/62.unique-paths.md
0073.set-matrix-zeroes	https://github.com/ljzlearn/leetcode/blob/master/problems/73.set-matrix-zeroes.md
0075.sort-colors	https://github.com/ljzlearn/leetcode/blob/master/problems/75.sort-colors.md
0078.subsets	https://github.com/ljzlearn/leetcode/blob/master/problems/78.subsets.md
0079.word-search	https://github.com/ljzlearn/leetcode/blob/master/problems/79.word-search-en.md
0086.partition-list	https://github.com/ljzlearn/leetcode/blob/master/problems/86.partition-list.md
0090.subsets-ii	https://github.com/ljzlearn/leetcode/blob/master/problems/90.subsets-ii.md
0091.decode-ways	https://github.com/ljzlearn/leetcode/blob/master/problems/91.decode-ways.md
0092.reverse-linked-list-ii	https://github.com/ljzlearn/leetcode/blob/master/problems/92.reverse-linked-list-ii.md
0094.binary-tree-inorder-traversal	https://github.com/ljzlearn/leetcode/blob/master/problems/94.binary-tree-inorder-traversal.md
0098.validate-binary-search-tree	https://github.com/ljzlearn/leetcode/blob/master/problems/98.validate-binary-search-tree.md
0102.binary-tree-level-order-traversal	https://github.com/ljzlearn/leetcode/blob/master/problems/102.binary-tree-level-order-traversal.md
0103.binary-tree-zigzag-level-order-traversal	https://github.com/ljzlearn/leetcode/blob/master/problems/103.binary-tree-zigzag-level-order-traversal.md
0113.path-sum-ii	https://github.com/ljzlearn/leetcode/blob/master/problems/113.path-sum-ii.md
0129.sum-root-to-leaf-numbers	https://github.com/ljzlearn/leetcode/blob/master/problems/129.sum-root-to-leaf-numbers.md
0130.surrounded-regions	https://github.com/ljzlearn/leetcode/blob/master/problems/130.surrounded-regions.md
0131.palindrome-partitioning	https://github.com/ljzlearn/leetcode/blob/master/problems/131.palindrome-partitioning.md
0139.word-break	https://github.com/ljzlearn/leetcode/blob/master/problems/139.word-break.md
0144.binary-tree-preorder-traversal	https://github.com/ljzlearn/leetcode/blob/master/problems/144.binary-tree-preorder-traversal.md
0150.evaluate-reverse-polish-notation	https://github.com/ljzlearn/leetcode/blob/master/problems/150.evaluate-reverse-polish-notation.md
0152.maximum-product-subarray	https://github.com/ljzlearn/leetcode/blob/master/problems/152.maximum-product-subarray.md
0199.binary-tree-right-side-view	https://github.com/ljzlearn/leetcode/blob/master/problems/199.binary-tree-right-side-view.md
0200.number-of-islands	https://github.com/ljzlearn/leetcode/blob/master/problems/200.number-of-islands.md
0201.bitwise-and-of-numbers-range	https://github.com/ljzlearn/leetcode/blob/master/problems/201.bitwise-and-of-numbers-range.md
0208.implement-trie-prefix-tree	https://github.com/ljzlearn/leetcode/blob/master/problems/208.implement-trie-prefix-tree.md
0209.minimum-size-subarray-sum	https://github.com/ljzlearn/leetcode/blob/master/problems/209.minimum-size-subarray-sum.md
0215.kth-largest-element-in-an-array	https://github.com/ljzlearn/leetcode/blob/master/problems/215.kth-largest-element-in-an-array.md
0221.maximal-square	https://github.com/ljzlearn/leetcode/blob/master/problems/221.maximal-square.md
0229.majority-element-ii	https://github.com/ljzlearn/leetcode/blob/master/problems/229.majority-element-ii.md
0230.kth-smallest-element-in-a-bst	https://github.com/ljzlearn/leetcode/blob/master/problems/230.kth-smallest-element-in-a-bst.md
0236.lowest-common-ancestor-of-a-binary-tree	https://github.com/ljzlearn/leetcode/blob/master/problems/236.lowest-common-ancestor-of-a-binary-tree.md
0238.product-of-array-except-self	https://github.com/ljzlearn/leetcode/blob/master/problems/238.product-of-array-except-self.md
0240.search-a-2-d-matrix-ii	https://github.com/ljzlearn/leetcode/blob/master/problems/240.search-a-2-d-matrix-ii.md
0279.perfect-squares	https://github.com/ljzlearn/leetcode/blob/master/problems/279.perfect-squares.md
0309.best-time-to-buy-and-sell-stock-with-cooldown	https://github.com/ljzlearn/leetcode/blob/master/problems/309.best-time-to-buy-and-sell-stock-with-cooldown.md
0322.coin-change	https://github.com/ljzlearn/leetcode/blob/master/problems/322.coin-change.md
0328.odd-even-linked-list	https://github.com/ljzlearn/leetcode/blob/master/problems/328.odd-even-linked-list.md
0334.increasing-triplet-subsequence	https://github.com/ljzlearn/leetcode/blob/master/problems/334.increasing-triplet-subsequence.md
0365.water-and-jug-problem	https://github.com/ljzlearn/leetcode/blob/master/problems/365.water-and-jug-problem.md
0378.kth-smallest-element-in-a-sorted-matrix	https://github.com/ljzlearn/leetcode/blob/master/problems/378.kth-smallest-element-in-a-sorted-matrix.md
0416.partition-equal-subset-sum	https://github.com/ljzlearn/leetcode/blob/master/problems/416.partition-equal-subset-sum.md
0445.add-two-numbers-ii	https://github.com/ljzlearn/leetcode/blob/master/problems/445.add-two-numbers-ii.md
0454.4-sum-ii	https://github.com/ljzlearn/leetcode/blob/master/problems/454.4-sum-ii.md
0474.ones-and-zeros	https://github.com/ljzlearn/leetcode/blob/master/problems/474.ones-and-zeros-en.md
0494.target-sum	https://github.com/ljzlearn/leetcode/blob/master/problems/494.target-sum.md
0516.longest-palindromic-subsequence	https://github.com/ljzlearn/leetcode/blob/master/problems/516.longest-palindromic-subsequence.md
0518.coin-change-2	https://github.com/ljzlearn/leetcode/blob/master/problems/518.coin-change-2.md
0547.friend-circles	https://github.com/ljzlearn/leetcode/blob/master/problems/547.friend-circles-en.md
0609.find-duplicate-file-in-system	https://github.com/ljzlearn/leetcode/blob/master/problems/609.find-duplicate-file-in-system.md
0875.koko-eating-bananas	https://github.com/ljzlearn/leetcode/blob/master/problems/875.koko-eating-bananas.md
0877.stone-game	https://github.com/ljzlearn/leetcode/blob/master/problems/877.stone-game.md
0887.super-egg-drop	https://github.com/ljzlearn/leetcode/blob/master/problems/887.super-egg-drop.md
0900.rle-iterator	https://github.com/ljzlearn/leetcode/blob/master/problems/900.rle-iterator.md
0912.sort-an-array	https://github.com/ljzlearn/leetcode/blob/master/problems/912.sort-an-array.md
1031.maximum-sum-of-two-non-overlapping-subarrays	https://github.com/ljzlearn/leetcode/blob/master/problems/1031.maximum-sum-of-two-non-overlapping-subarrays.md
1186.maximum-subarray-sum-with-one-deletion	https://github.com/ljzlearn/leetcode/blob/master/problems/1186.maximum-subarray-sum-with-one-deletion.md
1218.longest-arithmetic-subsequence-of-given-difference.md	https://github.com/ljzlearn/leetcode/blob/master/problems/1218.longest-arithmetic-subsequence-of-given-difference.md
	https://github.com/ljzlearn/leetcode#困难难度
0004.median-of-two-sorted-array	https://github.com/ljzlearn/leetcode/blob/master/problems/4.median-of-two-sorted-array.md
0023.merge-k-sorted-lists	https://github.com/ljzlearn/leetcode/blob/master/problems/23.merge-k-sorted-lists.md
0025.reverse-nodes-in-k-group	https://github.com/ljzlearn/leetcode/blob/master/problems/25.reverse-nodes-in-k-groups-cn.md
0032.longest-valid-parentheses	https://github.com/ljzlearn/leetcode/blob/master/problems/32.longest-valid-parentheses.md
0042.trapping-rain-water	https://github.com/ljzlearn/leetcode/blob/master/problems/42.trapping-rain-water.md
0124.binary-tree-maximum-path-sum	https://github.com/ljzlearn/leetcode/blob/master/problems/124.binary-tree-maximum-path-sum.md
0128.longest-consecutive-sequence	https://github.com/ljzlearn/leetcode/blob/master/problems/128.longest-consecutive-sequence.md
0145.binary-tree-postorder-traversal	https://github.com/ljzlearn/leetcode/blob/master/problems/145.binary-tree-postorder-traversal.md
0146.lru-cache	https://github.com/ljzlearn/leetcode/blob/master/problems/146.lru-cache.md
0239.sliding-window-maximum	https://github.com/ljzlearn/leetcode/blob/master/problems/239.sliding-window-maximum.md
0295.find-median-from-data-stream	https://github.com/ljzlearn/leetcode/blob/master/problems/295.find-median-from-data-stream.md
0301.remove-invalid-parentheses	https://github.com/ljzlearn/leetcode/blob/master/problems/301.remove-invalid-parentheses.md
0460.lfu-cache	https://github.com/ljzlearn/leetcode/blob/master/problems/460.lfu-cache.md
1168.optimize-water-distribution-in-a-village	https://github.com/ljzlearn/leetcode/blob/master/problems/1168.optimize-water-distribution-in-a-village-cn.md
	https://github.com/ljzlearn/leetcode#数据结构与算法的总结
数据结构	https://github.com/ljzlearn/leetcode/blob/master/thinkings/basic-data-structure.md
基础算法	https://github.com/ljzlearn/leetcode/blob/master/thinkings/basic-algorithm.md
二叉树的遍历	https://github.com/ljzlearn/leetcode/blob/master/thinkings/binary-tree-traversal.md
动态规划	https://github.com/ljzlearn/leetcode/blob/master/thinkings/dynamic-programming.md
哈夫曼编码和游程编码	https://github.com/ljzlearn/leetcode/blob/master/thinkings/run-length-encode-and-huffman-encode.md
布隆过滤器	https://github.com/ljzlearn/leetcode/blob/master/thinkings/bloom-filter.md
字符串问题	https://github.com/ljzlearn/leetcode/blob/master/thinkings/string-problems.md
	https://github.com/ljzlearn/leetcode#anki-卡片
anki-card	https://github.com/ljzlearn/leetcode/blob/master/assets/anki/leetcode.apkg
anki官网	https://apps.ankiweb.net/
	https://github.com/ljzlearn/leetcode#每日一题
每日一题汇总	https://github.com/ljzlearn/leetcode/blob/master/daily
	https://github.com/ljzlearn/leetcode/blob/master/assets/daily-summary.png
每日一题认领区	https://github.com/azl397985856/leetcode/projects/1
	https://github.com/ljzlearn/leetcode/blob/master/assets/daily-board.png
	https://github.com/ljzlearn/leetcode#计划
anki 卡片完善	https://github.com/ljzlearn/leetcode/blob/master/assets/anki
字符串类问题汇总	https://github.com/ljzlearn/leetcode/blob/master/todo/str
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点击查看完整的捐赠列表	https://github.com/ljzlearn/leetcode/blob/master/donation.md
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	https://github.com/ljzlearn/leetcode#贡献
issue	https://github.com/azl397985856/leetcode/issues
PR	https://github.com/azl397985856/leetcode/pulls
这里	https://github.com/ljzlearn/leetcode/blob/master/assets/drawio
draw.io	https://www.draw.io/
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小伙伴	https://github.com/azl397985856/leetcode/graphs/contributors
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Apache-2.0	https://github.com/ljzlearn/leetcode/blob/master/LICENSE.txt
Readme	https://github.com/ljzlearn/leetcode#readme-ov-file
Apache-2.0 license	https://github.com/ljzlearn/leetcode#Apache-2.0-1-ov-file
Please reload this page	https://github.com/ljzlearn/leetcode
Activity	https://github.com/ljzlearn/leetcode/activity
0 forks	https://github.com/ljzlearn/leetcode/forks
Report repository	https://github.com/contact/report-content?content_url=https%3A%2F%2Fgithub.com%2Fljzlearn%2Fleetcode&report=ljzlearn+%28user%29
Releases	https://github.com/ljzlearn/leetcode/releases
10 tags	https://github.com/ljzlearn/leetcode/tags
Packages 0	https://github.com/users/ljzlearn/packages?repo_name=leetcode
Please reload this page	https://github.com/ljzlearn/leetcode
Contributors	https://github.com/ljzlearn/leetcode/graphs/contributors
Please reload this page	https://github.com/ljzlearn/leetcode
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