📘 C++ & DSA

A collection of 103 C++ programs covering Data Structures and Algorithms — from basics to advanced topics.

📁 Folder Structure

CPP-DSA/
├── 01-Basics/              → Loops, counting, sum, fibonacci, etc.
├── 02-Patterns/            → Star patterns, pyramids, butterflies
├── 03-Functions/           → Function basics, overloading, call by ref
├── 04-Arrays/              → Searching, reversing, rotating arrays
├── 05-Vectors/             → Two sum, trapping rain water, kadane's algo
├── 06-Strings/             → Palindromes, roman numerals, sorting
├── 07-Sorting/             → Bubble, selection, insertion, merge sort
├── 08-Binary-Search/       → Sqrt, rotated array, aggressive cows
├── 09-2D-Arrays/           → Matrix ops, spiral, binary search in 2D
│   ├── 2D-Vector/          → Rotation, transpose, wave print
│   └── 2D-Binary-Search/   → Search in sorted 2D matrix
└── 10-Problems/            → Number systems, palindrome, leap year

📊 Topics Covered

#	Topic	Files
01	Basics — Loops, Fibonacci, digit operations	5
02	Patterns — Star patterns & pyramids	8
03	Functions — Overloading, recursion, call by ref	9
04	Arrays — Search, reverse, rotate, min/max	9
05	Vectors — Two sum, rain water, subarrays	12
06	Strings — Palindrome, roman, panagram, sorting	15
07	Sorting — Bubble, Selection, Insertion, Merge	4
08	Binary Search — Sqrt, rotated array, cows	10
09	2D Arrays — Matrix rotation, spiral, transpose	19
10	Problems — Number systems, complement, leap year	12

🛠️ How to Run

# Compile and run any file
g++ -o output "07-Sorting/merge.cpp" && ./output

# Or if you have cpprun configured
cpprun "07-Sorting/merge.cpp"

💡 Language

• C++ with Standard Library (<iostream>, <vector>, <string>, <algorithm>)