Leetcode Solutions 2023 – Java, Python, C++

If you’re looking for help with All Leetcode Solutions in Single Post, Directly copy-paste these codes into the Leetcode terminal and you are good to go. Leetcode Solutions in C++, Java, and Python. Quick start Let’s code!

As you already know that this site does not contain only the Codefchef solutions here, you can also find the solution for other programming problems. I.e. LeetcodeC programsC++ Programs SolutionsPython ProgramsWeb Technology, Data StructuresRDBMS Programs, and Java Programs Solutions.

My Leetcode Solutions All In One: Java Python C++
My Leetcode Solutions All In One

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One of the great things about Leetcode is that it offers a range of problems to solve, from simple to complex. This means that there is something for everyone, regardless of their skill level. Leetcode also provides solutions to problems so that participants can learn from their mistakes.

Explore is a well-organized tool that helps you get the most out of LeetCode by providing structure to guide your progress towards the next step in your programming career.

All Leetcode Solutions

#Problem TitleDifficultySolution
1Two SumEasyLink
2Add Two NumbersMediumLink
3Longest Substring Without Repeating CharactersMediumLink
4Median of Two Sorted ArraysHardLink
5Longest Palindromic SubstringMediumLink
6ZigZag ConversionMediumLink
7Reverse IntegerEasyLink
8String to Integer (atoi)MediumLink
9Palindrome NumberEasyLink
10Regular Expression MatchingHardLink
11Container With Most WaterMediumLink
12Integer to RomanMediumLink
13Roman to IntegerEasyLink
14Longest Common PrefixEasyLink
153SumMediumLink
163Sum ClosestMediumLink
17Letter Combinations of a Phone NumberMediumLink
184SumMediumLink
19Remove Nth Node From End of ListMediumLink
20Valid ParenthesesEasyLink
21Merge Two Sorted ListsEasyLink
22Generate ParenthesesMediumLink
23Merge k Sorted ListsHardLink
24Swap Nodes in PairsMediumLink
25Reverse Nodes in k-GroupHardLink
26Remove Duplicates from Sorted ArrayEasyLink
27Remove ElementEasyLink
28Find the Index of the First Occurrence in a StringEasyLink
29Divide Two IntegersMediumLink
30Substring with Concatenation of All WordsHardLink
31Next PermutationMediumLink
32Longest Valid ParenthesesHardLink
33Search in Rotated Sorted ArrayMediumLink
34Find First and Last Position of Element in Sorted ArrayMediumLink
35Search Insert PositionEasyLink
36Valid SudokuMediumLink
37Sudoku SolverHardLink
38Count and SayEasyLink
39Combination SumMediumLink
40Combination Sum IIMediumLink
41First Missing PositiveHardLink
42Trapping Rain WaterHardLink
43Multiply StringsMediumLink
44Wildcard MatchingHardLink
45Jump Game IIHardLink
46PermutationsMediumLink
47Permutations IIMediumLink
48Rotate ImageMediumLink
49Group AnagramsMediumLink
50Pow(x, n)MediumLink
51N-QueensHardLink
52N-Queens IIHardLink
53Maximum SubarrayEasyLink
54Spiral MatrixMediumLink
55Jump GameMediumLink
56Merge IntervalsMediumLink
57Insert IntervalHardLink
58Length of Last WordEasyLink
59Spiral Matrix IIMediumLink
60Permutation SequenceMediumLink
61Rotate ListMediumLink
62Unique PathsMediumLink
63Unique Paths IIMediumLink
64Minimum Path SumMediumLink
65Valid NumberHardLink
66Plus OneEasyLink
67Add Binary EasyLink
68Text JustificationHardLink
69Sqrt(x)EasyLink
70Climbing StairsEasyLink
71Simplify PathMediumLink
72Edit DistanceHardLink
73Set Matrix ZeroesMediumLink
74Search a 2D MatrixMediumLink
75Sort ColorsMediumLink
76Minimum Window SubstringHardLink
77CombinationsMediumLink
78SubsetsMediumLink
79Word SearchMediumLink
80Remove Duplicates from Sorted Array IIMediumLink
81Search in Rotated Sorted Array IIMediumLink
82Remove Duplicates from Sorted List IIMediumLink
83Remove Duplicates from Sorted ListEasyLink
84Largest Rectangle in HistogramHardLink
85Maximal RectangleHardLink
86Partition ListMediumLink
87Scramble StringHardLink
88Merge Sorted ArrayEasyLink
89Gray CodeMediumLink
90Subsets IIMediumLink
91Decode WaysMediumLink
92Reverse Linked List IIMediumLink
93Restore IP AddressesMediumLink
94Binary Tree Inorder TraversalMediumLink
95Unique Binary Search Trees IIMediumLink
96Unique Binary Search TreesMediumLink
97Interleaving StringHardLink
98Validate Binary Search TreeMediumLink
99Recover Binary Search TreeHardLink
100Same TreeEasyLink
101Symmetric TreeEasyLink
102Binary Tree Level Order TraversalMediumLink
103Binary Tree Zigzag Level Order TraversalMediumLink
104Maximum Depth of Binary TreeEasyLink
105Construct Binary Tree from Preorder and Inorder TraversalMediumLink
106Construct Binary Tree from Inorder and Postorder TraversalMediumLink
107Binary Tree Level Order Traversal IIEasyLink
108Convert Sorted Array to Binary Search TreeEasyLink
109Convert Sorted List to Binary Search TreeMediumLink
110Balanced Binary TreeEasyLink
111Minimum Depth of Binary TreeEasyLink
112Path SumEasyLink
113Path Sum II
MediumLink
114Flatten Binary Tree to Linked ListMediumLink
115Distinct SubsequencesHardLink
116Populating Next Right Pointers in Each NodeMediumLink
117Populating Next Right Pointers in Each Node IIMediumLink
118Pascal’s TriangleEasyLink
119Pascal’s Triangle IIEasyLink
120TriangleMediumLink
121Best Time to Buy and Sell StockEasyLink
122Best Time to Buy and Sell Stock IIEasyLink
123Best Time to Buy and Sell Stock IIIHardLink
124Binary Tree Maximum Path SumHardLink
125Valid PalindromeEasyLink
126Word Ladder IIHardLink
127Word LadderMediumLink
128Longest Consecutive SequenceHardLink
129Sum Root to Leaf NumbersMediumLink
130Surrounded RegionsMediumLink
131Palindrome PartitioningMediumLink
132Palindrome Partitioning IIHardLink
133Clone GraphMediumLink
134Gas StationMediumLink
135CandyHardLink
136Single NumberEasyLink
137Single Number IIMediumLink
138Copy List with Random PointerMediumLink
139Word BreakMediumLink
140Word Break IIHardLink
141Linked List CycleEasyLink
142Linked List Cycle IIMediumLink
143Reorder ListMediumLink
144Binary Tree Preorder TraversalMediumLink
145Binary Tree Postorder TraversalHardLink
146LRU CacheHardLink
147Insertion Sort ListMediumLink
148Sort ListMediumLink
149Max Points on a LineHardLink
150Evaluate Reverse Polish NotationMediumLink

Disclaimer: The above Problems are generated by Leetcode but the solution is provided by Chase2learn.This tutorial is only for Educational and Learning purpose.

Finally, we are now, in the end, I just want to conclude some important message for you

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FAQ:-

1. Is LeetCode the best way to prepare for interviews?

LeetCode-type questions are part of almost every programming interview or you can say every company interview, so every software developer should practice them before an interview. Their only option is to prepare smartly so yes we can say LeetCode is the best way to prepare for interviews.

2. leetcode vs hackerrank

I believe HackerRank questions are basics like it is for hackathons or code challenges but LeetCode questions are closer to technical interviews.

3. How to become 5 star coder in Leetcode?

Solve more problems and your star rank will grow as a direct result. The star ranking on your profile only depends on the number of problems on LeetCode that you have solved. Solve as many questions as you can. Read More

4. How much does Leetcode cost in India?

Annual Subscription $159.00. You must use an India-based payment method to qualify for a discount against COVID-19.

5. How to Get Discount on Leetcode premium? 

You can use an India-based payment method to qualify for a discount against COVID-19.

6. Is Leetcode good for SQL practice?

LeetCode is a good platform for practicing SQL Queries. The SQL Questions on LeetCode are framed pretty similar to how they are asked in SQL Interviews hence solving SQL questions on LeetCode can give you a good hands on experience on solving real world SQL questions.

7. How do I improve my Leetcode skills?

  1. 5 Tips To Beat the LeetCode Grind. Get ready for coding interviews the right way! …
  2. Stick to Learning a Single Topic Each Week. …
  3. Stick to a Schedule and Be Consistent. …
  4. Focus Only on Your Weakest Topics. …
  5. Give Yourself a Time Limit When Solving Problems. …
  6. Find a Study Buddy. Read more

 8. What is the cost of Leetcode premium?

$35/month

LeetCode Premium is LeetCode’s paid subscription, which currently costs $35/month or $159/year. It gives users access to premium problems and solutions, a built-in debugger, and interview simulations.

9. Which is best Leet code or Codechef? 

LeetCode seems to be a lot more popular than Codechef.

10. How to get a job at Leetcode?

you can check here Leetcode openings and apply: https://apply.workable.com/leetcode/

11. Is Leetcode contest difficult?

Nope, it’s up to you if you know how to solve then it is easy if you don’t know then it would be difficult for you so it depends from person to person.

12. Does Leetcode make you a better programmer?

yes, Leetcode makes you a better programmer, Solving LeetCode problems definitely helps you improve your coding and problem-solving skills.

13. How do I get an answer in Leetcode?

So simple on the website Chase2learn you will get all Leetcode problem solutions. 

14. What is good rating at Leetcode?

If you can reach 2200+ in leetcode, you’re already in the top 2% of players!

Topic covered:

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