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# dsa

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Design HashSet

Design HashSet

4
Comments
2 min read
Pascal's Triangle II

Pascal's Triangle II

5
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1 min read
Search in a Binary Search Tree

Search in a Binary Search Tree

4
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1 min read
Linked List Cycle II

Linked List Cycle II

3
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2 min read
Evaluate Reverse Polish Notation

Evaluate Reverse Polish Notation

4
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1 min read
Construct Binary Tree from Inorder and Postorder Traversal

Construct Binary Tree from Inorder and Postorder Traversal

4
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1 min read
H-Index II

H-Index II

4
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1 min read
Sort Colors

Sort Colors

4
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1 min read
Check If N and Its Double Exist

Check If N and Its Double Exist

4
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1 min read
Concatenation of Array

Concatenation of Array

4
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1 min read
Maximum Frequency Stack

Maximum Frequency Stack

4
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2 min read
Successful Pairs of Spells and Potions

Successful Pairs of Spells and Potions

4
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2 min read
Shuffle an Array

Shuffle an Array

4
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1 min read
4Sum II

4Sum II

4
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1 min read
Binary Gap

Binary Gap

4
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1 min read
Missing Number

Missing Number

4
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1 min read
Maximum Split of Positive Even Integers

Maximum Split of Positive Even Integers

4
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2 min read
Kth Distinct String in an Array

Kth Distinct String in an Array

4
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1 min read
Binary Search Tree to Greater Sum Tree

Binary Search Tree to Greater Sum Tree

4
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1 min read
Remove Duplicates from Sorted List II

Remove Duplicates from Sorted List II

4
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1 min read
Diagonal Traverse

Diagonal Traverse

4
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1 min read
Maximum Path Quality of a Graph

Maximum Path Quality of a Graph

4
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2 min read
132 Pattern

132 Pattern

4
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2 min read
Squares of a Sorted Array

Squares of a Sorted Array

4
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1 min read
Boats to Save People

Boats to Save People

4
Comments 1
1 min read
Rings and Rods

Rings and Rods

4
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2 min read
Determine if String Halves Are Alike

Determine if String Halves Are Alike

4
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1 min read
Average of Levels in Binary Tree

Average of Levels in Binary Tree

4
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1 min read
Goat Latin

Goat Latin

4
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2 min read
Maximum Product of Word Lengths

Maximum Product of Word Lengths

4
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1 min read
Increasing Subsequences

Increasing Subsequences

4
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1 min read
Maximum Length of Repeated Subarray

Maximum Length of Repeated Subarray

4
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1 min read
Construct the Rectangle

Construct the Rectangle

4
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1 min read
Longest Valid Parentheses

Longest Valid Parentheses

4
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1 min read
Smallest Index With Equal Value

Smallest Index With Equal Value

4
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1 min read
Clone Graph

Clone Graph

4
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2 min read
Valid Square

Valid Square

4
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2 min read
Sum of Left Leaves

Sum of Left Leaves

4
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1 min read
1-bit and 2-bit Characters

1-bit and 2-bit Characters

2
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1 min read
Zigzag Conversion

Zigzag Conversion

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1 min read
Count Common Words With One Occurrence

Count Common Words With One Occurrence

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1 min read
K Closest Points to Origin

K Closest Points to Origin

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1 min read
Min Stack

Min Stack

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2 min read
Longest Happy String

Longest Happy String

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1 min read
Peeking Iterator

Peeking Iterator

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2 min read
Largest Number

Largest Number

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1 min read
Reverse Only Letters

Reverse Only Letters

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1 min read
Peak Index in a Mountain Array

Peak Index in a Mountain Array

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1 min read
Maximum Product of Three Numbers

Maximum Product of Three Numbers

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1 min read
Symmetric Tree

Symmetric Tree

1
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1 min read
Maximal Network Rank

Maximal Network Rank

1
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2 min read
Binary Tree Tilt

Binary Tree Tilt

1
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2 min read
Remove Outermost Parentheses

Remove Outermost Parentheses

1
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1 min read
Baseball Game

Baseball Game

2
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2 min read
Letter Tile Possibilities

Letter Tile Possibilities

1
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1 min read
Maximum Twin Sum of a Linked List

Maximum Twin Sum of a Linked List

1
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2 min read
Consecutive Characters

Consecutive Characters

1
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1 min read
Minimum Falling Path Sum

Minimum Falling Path Sum

1
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1 min read
Check Completeness of a Binary Tree

Check Completeness of a Binary Tree

1
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1 min read
Flatten a Multilevel Doubly Linked List

Flatten a Multilevel Doubly Linked List

2
Comments
2 min read
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