add README seed

Author: Muhammad-Magdi

README.md

@@ -1 +1,41 @@
-# Problem-Solving
+# Problem-Solving
+
+## Description
+
+This Repository contains some session notes/codes/solutions to classical problems
+
+## Topics included
+
+- C++ Standard Template Library (STL) notes/usage examples.
+
+- Some C++ Built-in function notes/usage examples.
+
+- Time Complexity Analysis session notes/examples.
+
+- C++ Bitwise operators notes/usage examples in bitmasks.
+
+- 1D/2D Cumulative (prefix) Sum, Frequency arrays notes/usage examples.
+
+- Binary Search with 2 (minimization,maximization) Examples.
+
+- Kadane Algorithm usage example in 1D, 2D and 3D arrays.
+
+- Union Find (aka Disjoint Sets Union DSU) Data structure with Path Compression.
+
+- Different Solutions to find/build the LIS (Longest Increasing Subsequence) Problem using:
+
+  - Recursive/Iterative (with Memory Reduction) Dynamic Programming (DP).
+
+  - Binary Search.
+  
+  - Segment Tree.
+
+- Matrix Operations:
+
+  - Addition
+  
+  - Multiplication
+  
+  - Fast Exponentiation (aka Fast Power).
+
+TBC..