Master Coding Patterns

Build muscle memory with targeted practice templates.
Recognize patterns. Solve any problem.

Pattern Library

Master coding patterns with structured practice.

Python Examples

3 Templates

📄 data_structures.py

📄 input_parsing.py

📄 linked_list_usage.py

Sliding Window

1 Templates

📄 sliding_window.py

Two Pointers

1 Templates

📄 two_pointers.py

Fast and Slow Pointers

1 Templates

📄 fast_slow_pointers.py

Merge Intervals

1 Templates

📄 merge_intervals.py

Cyclic Sort

1 Templates

📄 cyclic_sort.py

In-place Reversal of a Linked List

1 Templates

📄 linked_list_utils.py

Tree BFS

1 Templates

Tree DFS

1 Templates

Two Heaps

1 Templates

📄 two_heaps.py

Subsets

1 Templates

📄 subsets.py

Modified Binary Search

1 Templates

📄 binary_search.py

Bitwise XOR

1 Templates

📄 bitwise_xor.py

Top K Elements

1 Templates

📄 quick_select.py

K-way Merge

1 Templates

📄 k_way_merge.py

Topological Sort

1 Templates

📄 topological_sort.py

Union Find

1 Templates

📄 union_find.py

Backtracking

1 Templates

📄 backtracking.py

Dynamic Programming

1 Templates

📄 knapsack.py

Monotonic Stack

1 Templates

📄 monotonic_stack.py

Island Matrix Traversal

1 Templates

📄 matrix_traversal.py

Graphs

1 Templates

📄 graph_traversal.py

Trie

1 Templates