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# dsa

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Deepest Leaves Sum

Deepest Leaves Sum

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1 min read
Fraction Addition and Subtraction

Fraction Addition and Subtraction

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2 min read
Longest Consecutive Sequence

Longest Consecutive Sequence

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Reorganize String

Reorganize String

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1 min read
Longest Word in Dictionary

Longest Word in Dictionary

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1 min read
Minimum Deletions to Make Array Beautiful

Minimum Deletions to Make Array Beautiful

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2 min read
Implement Trie (Prefix Tree)

Implement Trie (Prefix Tree)

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2 min read
Count Number of Texts

Count Number of Texts

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Reverse Linked List

Reverse Linked List

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Divide a String Into Groups of Size k

Divide a String Into Groups of Size k

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2 min read
Number of Recent Calls

Number of Recent Calls

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Binary Tree Level Order Traversal

Binary Tree Level Order Traversal

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Rearrange Array Elements by Sign

Rearrange Array Elements by Sign

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Replace All Digits with Characters

Replace All Digits with Characters

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Check if Array Is Sorted and Rotated

Check if Array Is Sorted and Rotated

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Find Players With Zero or One Losses

Find Players With Zero or One Losses

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2 min read
Two Sum IV - Input is a BST

Two Sum IV - Input is a BST

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Remove All Occurrences of a Substring

Remove All Occurrences of a Substring

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Critical Connections in a Network

Critical Connections in a Network

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2 min read
Flood Fill

Flood Fill

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Flatten Binary Tree to Linked List

Flatten Binary Tree to Linked List

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Number of Flowers in Full Bloom

Number of Flowers in Full Bloom

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Count Primes

Count Primes

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1 min read
Remove Element

Remove Element

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2 min read
Two City Scheduling

Two City Scheduling

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Set Mismatch

Set Mismatch

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Move Zeroes

Move Zeroes

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1 min read
Valid Parentheses

Valid Parentheses

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Maximum Level Sum of a Binary Tree

Maximum Level Sum of a Binary Tree

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Minimum Remove to Make Valid Parentheses

Minimum Remove to Make Valid Parentheses

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Maximum Nesting Depth of the Parentheses

Maximum Nesting Depth of the Parentheses

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Find Mode in Binary Search Tree

Find Mode in Binary Search Tree

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Coin Change

Coin Change

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1 min read
Smallest Subsequence of Distinct Characters

Smallest Subsequence of Distinct Characters

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Construct String With Repeat Limit

Construct String With Repeat Limit

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2 min read
Substrings of Size Three with Distinct Characters

Substrings of Size Three with Distinct Characters

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Merge Intervals

Merge Intervals

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Generate Parentheses

Generate Parentheses

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Maximum Difference Between Increasing Elements

Maximum Difference Between Increasing Elements

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Partition List

Partition List

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Find Minimum in Rotated Sorted Array

Find Minimum in Rotated Sorted Array

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Greatest Sum Divisible by Three

Greatest Sum Divisible by Three

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Kth Largest Element in an Array

Kth Largest Element in an Array

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Count Nodes Equal to Average of Subtree

Count Nodes Equal to Average of Subtree

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2 min read
Strong Password Checker II

Strong Password Checker II

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1 min read
Maximum Consecutive Floors Without Special Floors

Maximum Consecutive Floors Without Special Floors

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Java and Object Oriented Programming [#1]

Java and Object Oriented Programming [#1]

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3 min read
Count of Smaller Numbers After Self

Count of Smaller Numbers After Self

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Assign Cookies

Assign Cookies

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Remove Duplicates from Sorted Array

Remove Duplicates from Sorted Array

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2 min read
Count Hills and Valleys in an Array

Count Hills and Valleys in an Array

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3 min read
Minimum Operations to Reduce X to Zero

Minimum Operations to Reduce X to Zero

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Richest Customer Wealth

Richest Customer Wealth

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Delete Operation for Two Strings

Delete Operation for Two Strings

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Kth Missing Positive Number

Kth Missing Positive Number

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All Elements in Two Binary Search Trees

All Elements in Two Binary Search Trees

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Interleaving String

Interleaving String

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2 min read
Minimum Path Sum

Minimum Path Sum

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Combination Sum III

Combination Sum III

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1 min read
Construct String from Binary Tree

Construct String from Binary Tree

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