🧠 Algorithms & Problem Solving — Level 3

A structured collection of C++ problem-solving exercises covering matrices, recursion, strings, text processing, records, and file handling.

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📌 Overview

This repository contains 51 problem statements from Algorithms & Problem Solving — Level 3. Each problem is organized in its own folder with a clean, predictable name.

The repository intentionally contains the problem statements only. Solutions and source code are not included here.

📊	Details
🧩 Problems	51
💻 Language	C++
🧮 Main topics	Matrices • Recursion • Strings • File Handling
📁 Organization	One folder per problem
📝 Content	Problem statements only

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🧭 Problem Roadmap

🧮 Problems 01–10 — Matrices

#	Problem	📖
01	Random Matrix	View
02	Sum Each Row in Matrix	View
03	Sum Each Row in Matrix in Array	View
04	Sum Each Col in Matrix	View
05	Sum Each Col in Matrix in Another Array	View
06	3x3 Ordered Matrix	View
07	Transpose Matrix	View
08	Multiply Two Matrices	View
09	Print Middle Row and Col of Matrix	View
10	Sum of Matrix	View

🔎 Problems 11–20 — Matrix Validation & Searching

#	Problem	📖
11	Check Matrices Equality	View
12	Check Typical Matrices	View
13	Check Identity Matrix	View
14	Check Scalar Matrix	View
15	Count Number in Matrix	View
16	Check Sparse Matrix	View
17	Number Exists in Matrix	View
18	Intersected Numbers in Matrices	View
19	Min/Max Number in Matrix	View
20	Palindrom Matrix	View

🔁 Problems 21–30 — Fibonacci & String Fundamentals

#	Problem	📖
21	Fibonacci Series	View
22	Fibonacci Series With Recursion	View
23	Print First Letter of Each Word	View
24	Upper First Letter of Each Word	View
25	Lower First Letter of Each Word	View
26	Upper/Lower All Letters of a String	View
27	Invert Character Case	View
28	Invert All Letters Case	View
29	Count Small/Capital Letters	View
30	Count Letters	View

🔤 Problems 31–40 — String Processing

#	Problem	📖
31	Count Letters (Match Case)	View
32	Is Vowel?	View
33	Count Vowel	View
34	Print All Vowels in String	View
35	Print Each Word in String	View
36	Count Each Word in String	View
37	Split String	View
38	TrimLeft, TrimRight, Trim	View
39	Join String	View
40	Join String (Overloading)	View

🗂️ Problems 41–51 — Advanced Strings & File Handling

#	Problem	📖
41	Reverse Words	View
42	Replace Words	View
43	Replace Words (Custom)	View
44	Remove Punctuations	View
45	Convert Record to Line	View
46	Convert Line Data to Record	View
47	Add Clients to File	View
48	Show All Clients	View
49	Find Client by Account Number	View
50	Delete Client by Account Number	View
51	Update Client by Account Number	View

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📁 Structure

Algorithms-Problem-Solving-Level-3/
│
├── Problem-01-Random-Matrix/
│   └── README.md
│
├── Problem-02-Sum-Each-Row-In-Matrix/
│   └── README.md
│
├── ...
│
├── Problem-51-Update-Client-By-Account-Number/
│   └── README.md
│
└── README.md

🏷️ Naming Convention

All problem folders follow a clean naming convention using - separators and numbered prefixes:

• Problem-01-Random-Matrix
• Problem-22-Fibonacci-Series-With-Recursion
• Problem-47-Add-Clients-To-File

This keeps the repository easy to navigate and safe to use across GitHub, terminals, and IDEs.

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🚀 Learning Path

Understand → Solve → Practice → Compare → Improve

The repository provides the questions in an organized structure so solutions can be added or maintained independently without changing the original problem statements.

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🧠 Think • 💻 Code • 🔍 Analyze • 🚀 Improve