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Category: Design Pattern

SOLID Design Principles in C++

Posted on February 1, 2022February 16, 2022 By thecodepathshala 3 Comments on SOLID Design Principles in C++
SOLID Design Principles in C++
C++, Design Pattern, Programming, SOLID Principle, System Design

Dependency Inversion Principle

Posted on February 1, 2022February 5, 2022 By thecodepathshala 4 Comments on Dependency Inversion Principle

High level modules should not depend upon low level modules. Both should depend upon abstractions. Dependency inversion talks about the coupling between the different classes or modules. It focuses on the approach where the higher classes are not dependent on the lower classes instead depend upon the abstraction of the lower classes. The main motto…

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C++, Design Pattern, SOLID Principle, System Design

Interface Segregation Principle(ISP)

Posted on February 1, 2022February 5, 2022 By thecodepathshala 6 Comments on Interface Segregation Principle(ISP)

Clients should not be forced to depend upon interfaces that they do not use. Do not force any client to implement an interface which is irrelevant to them You should prefer many client interfaces rather than one general interface and each interface should have a specific responsibility. Interface Segregation Principle is very much related to…

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C++, Design Pattern, SOLID Principle, System Design

Liskov Substitution Principle

Posted on February 1, 2022February 5, 2022 By thecodepathshala 5 Comments on Liskov Substitution Principle

Subtypes must be substitutable for their base types without altering the correctness of the program Methods that use references to base classes must be able to use objects of derived classes without knowing it. If S is a subtype of T, then objects of type T in a program may be replaced with objects of type S without altering any of the…

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C++, C++, Design Pattern, SOLID Principle, System Design

Open-Closed Principle

Posted on February 1, 2022February 2, 2022 By thecodepathshala 6 Comments on Open-Closed Principle

Classes should be open for extension and closed to modification. Modification means changing the code of an existing class, and extension means adding new functionality. We should be able to add new functionality without touching the existing code for the class. This is because whenever we modify the existing code, we are taking the risk…

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C++, Design Pattern, SOLID Principle, System Design

Single Responsibility Principle

Posted on February 1, 2022February 2, 2022 By thecodepathshala 16 Comments on Single Responsibility Principle

A class should have only one reason to change. It means a class should have only one task to perform. This means that if a class is a data container, like a Book class or a Student class, and it has some fields regarding that entity, it should change only when we change the data…

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C++, Design Pattern, SOLID Principle, System Design

SOLID Design Principles in C++

Posted on October 26, 2021February 1, 2022 By thecodepathshala 3 Comments on SOLID Design Principles in C++

SOLID is an acronym for five design principles intended to make software designs more understandable, flexible, and maintainable. They are a subset of many principles promoted by Robert C. Martin. Though they apply to any object-oriented design, the SOLID principles can also form a core philosophy for agile development.Source : SOLID_Wikipedia SOLID acronyms are : SRP –…

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C++, Design Pattern, Programming, SOLID Principle, System Design

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🔥 C++ STL IN 30 MINUTES — Complete Introduction for DSA & Coding Interviews!

Confused about C++ STL while solving DSA and LeetCode problems? In this video, we’ll understand the Standard Template Library (STL) from scratch and learn the most important concepts you actually need for competitive programming, DSA, placements and coding interviews.

Instead of spending hours learning STL, this 30-minute C++ STL crash course gives you a practical overview of the most important STL components with examples and complexity.

🚀 What You'll Learn

✅ What is C++ STL?
✅ Why STL is important for DSA
✅ STL Containers
✅ Vector
✅ Pair
✅ List
✅ Stack
✅ Queue
✅ Priority Queue
✅ Set
✅ Map
✅ Unordered Map / Set
✅ Iterators
✅ Important STL Algorithms
✅ sort()
✅ reverse()
✅ find()
✅ binary_search()
✅ lower_bound()
✅ upper_bound()
✅ min() / max()
✅ Time Complexity of important STL operations
✅ How STL helps in LeetCode & Coding Interviews

💡 Why Should You Learn STL?

If you're preparing for:

🔥 LeetCode
🔥 Coding Interviews
🔥 DSA Placements
🔥 Competitive Programming
🔥 Amazon / Microsoft / Google / Meta Interviews
🔥 C++ Programming

then knowing STL can significantly reduce the amount of code you need to write and help you focus on the actual problem-solving logic.

By the end of this video, you should have a clear roadmap of which C++ STL containers, functions and algorithms you need to learn for DSA.

👉 Subscribe to TheCodePathshala for practical DSA, C++, LeetCode and System Design videos.

👍 Like the video if this STL crash course helped you!

💬 Comment below: Which STL topic confuses you the most?

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C++ STL IN 30 MINUTES 🔥 | Complete STL Introduction for DSA & Interviews
Important!!
Is DSA required for FAANG interview 🇮🇳♥️
Bug free code | prod ready #google #leetcode #codeprep #codeadventure #codeeveryday
2 sum in O(n) #google #microsoft
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🚀 LeetCode #1 – Two Sum Explained in Under 2 Minutes!
Learn the most asked coding interview problem using the Hash Map approach and understand why it runs in O(n) time instead of O(n²).
In this Short, you'll learn:
✅ Problem statement
✅ Optimized Hash Map approach
✅ Step-by-step dry run
✅ Time & Space Complexity
✅ Interview tips
If you're preparing for FAANG, Microsoft, Amazon, Google, or any software engineering interview, this series is for you.
👍 Like the video if it helped.
💬 Comment which LeetCode problem I should explain next.
🔔 Subscribe for daily DSA, Golang, System Design, and Coding Interview content.
#leetcode #twosum #dsa #coding #programming #cpp #golang #interview #softwareengineer #shorts #codinginterview #algorithms #datastructures
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