🚀 My Simple Guide to Start Competitive Programming (From Zero to Hero Step by Step)

🚀 Introduction

Competitive Programming (CP) is a skill where you solve algorithmic problems within a limited time. It helps you improve problem-solving ability, logical thinking, and coding speed.

If you are a complete beginner, don’t worry. This guide will help you start CP step by step.

🪜 Step 1: Learn a Programming Language

First, choose one language:

C++ (Highly recommended for CP) OR Java / Python

👉 Focus on basics:

• Variables
• loops
• conditionals
• Functions
• Arrays & strings

🧠 Step 2: Learn Basic Data Structures

Start with:

• Array
• String
• Stack & Queue
• Basic STL (for C++ users)

🔍 Step 3: Solve Easy Problems First

Start from easy level problems:

• Codeforces (A problems)
• CodeChef (Beginner section)
• AtCoder Beginner Contest

👉 Don’t jump to hard problems early.

🔥 Step 4: Learn Important Topics Slowly

After basics:

• Sorting
• Binary Search
• Greedy
• Prefix Sum
• Recursion
• Basic DP (Dynamic Programming)

🏁 Step 5: Practice Daily

• Solve 1–3 problems daily
• Participate in contests
• Upsolve (very important!)

🧩 Step 6: Learn from Mistakes

If you can’t solve a problem:

• Read editorials
• Understand logic
• Try again yourself

💡 Final Tips

• Consistency is more important than speed
• Don’t compare yourself with others
• Focus on understanding, not memorizing