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Algorithm
Algorithm
23 items under this folder.
Sep 28, 2025
2Sum, 3Sum, 4Sum ... x-Sum and their variants
algorithm
hash-table
two-pointers
hash-map
java
Sep 28, 2025
Binary Tree Traversal - Preorder, Inorder, Postorder
algorithm
binary-tree
divide-and-conquer
stack
dfs
java
Sep 28, 2025
Course Schedule
algorithm
bfs
topological-sort
java
Sep 28, 2025
Deep copy a Linked List with random pointers
algorithm
linked-list
java
Sep 28, 2025
Design a Binary Search Tree Iterator
algorithm
design
binary-tree
java
Sep 28, 2025
Find min/max value in rotated sorted array
algorithm
binary-search
java
Sep 28, 2025
Find the cycle in a Linked List
algorithm
linked-list
java
Sep 28, 2025
Find the intersection of two Linked Lists
algorithm
linked-list
java
Sep 28, 2025
Identify a Balanced Binary Tree
algorithm
binary-tree
java
Sep 28, 2025
Implement a square root function
algorithm
binary-search
math
java
Sep 28, 2025
Lowest Common Ancestor of Binary Tree
algorithm
binary-tree
java
Sep 28, 2025
Can you reorder a Linked List?
algorithm
linked-list
java
Sep 28, 2025
Reverse a Linked List
algorithm
linked-list
java
Sep 28, 2025
Reverse a string
string
algorithm
two-pointers
java
Sep 28, 2025
Reverse an integer
algorithm
math
java
Sep 28, 2025
Reverse nodes in k-group in Linked List
algorithm
linked-list
java
Sep 28, 2025
Can you rotate a Linked List by k places?
algorithm
linked-list
java
Sep 28, 2025
Search a 2D Matrix
algorithm
binary-search
java
Sep 28, 2025
Search in rotated sorted array
algorithm
binary-search
java
Sep 28, 2025
Sorting a Linked List
algorithm
linked-list
java
Sep 28, 2025
Subsets, Permutations, and Combination Sums
algorithm
backtracking
dfs
java
Sep 28, 2025
Swap nodes in pairs
algorithm
linked-list
java
Sep 28, 2025
Topological sorting, do you really know it?
algorithm
bfs
topological-sort
sort
java