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# 🧠 Leetcode 250 - Mastering Top Interview Problems
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# 🧠 Leetcode 250 - Mastering Top Coding Interview Problems
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Welcome to the **Leetcode 250** challenge repository!
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This repo contains **Python solutions** for the top 250 most frequently asked **Leetcode problems** — ideal for preparing for **FAANG**, **Big Tech**, and **startup interviews**.
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Welcome to the **Leetcode 250** repository – a curated collection of the **250 most frequently asked Leetcode questions** with **clean Python solutions**, detailed explanations, and optimized code — ideal for preparing for **FAANG**, **Big Tech**, and startup coding interviews.
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> 🔍 If you're searching for "Leetcode 250," "Top Leetcode Interview Questions," or "Python Leetcode Solutions," you’ve landed in the right place.
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> ✅ If you’re searching for:
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> `Leetcode 250` · `Top 250 Leetcode Problems` · `FAANG Coding Prep` · `Python Interview Questions`
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> You’ve landed in the **right place**.
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---
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## 📌 Why This Repository?
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## 🚀 Why This Repository Stands Out
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✅ Curated 250 high-impact problems
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✅ Pythonic solutions with clean code
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✅ Intuition and explanation for each problem
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✅ Covers all major topics: Array, DP, Tree, Graph, Greedy, Backtracking
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✅ Ideal for Google, Microsoft, Amazon, Meta interviews
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✅ Daily practice schedule (optional)
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✔️ 250 curated questions to maximize your **DSA preparation**
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✔️ Clean and readable **Python solutions**
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✔️ Includes **intuition, approach, time/space complexity**
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✔️ Structured by topic for ease of learning
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✔️ Suitable for **Google, Amazon, Meta, Microsoft, Netflix**
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✔️ Regular updates and daily commit logs
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✔️ Easy folder navigation and problem search
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---
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## 🗂️ Problem Categories
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| Category | # Problems |
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|----------------|------------|
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| Arrays & Strings | ✅ |
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| Linked Lists | ✅ |
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| Trees & Graphs | ✅ |
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| Dynamic Programming | ✅ |
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| Binary Search | ✅ |
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| Sliding Window | ✅ |
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| Backtracking | ✅ |
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| Heap & Greedy | ✅ |
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| Stack & Queue | ✅ |
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| Bit Manipulation | ✅ |
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## 📚 Structured Problem Categories
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| 💡 Topic | 📌 Folder Name |
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|------------------------|-----------------------|
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| Arrays & Strings | `arrays_strings/` |
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| Linked Lists | `linked_lists/` |
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| Trees & Binary Trees | `trees/` |
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| Graphs & Traversals | `graphs/` |
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| Dynamic Programming | `dp/` |
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| Sliding Window | `sliding_window/` |
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| Binary Search | `binary_search/` |
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| Backtracking | `backtracking/` |
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| Stack & Queues | `stack_queue/` |
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| Heap & Greedy | `heap_greedy/` |
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| Bit Manipulation | `bit_manipulation/` |
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| Math & Logic | `math_logic/` |
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| Others & Miscellaneous | `others/` |
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---
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## 🚀 Progress Tracker
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> Total: **250** problems
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> Solved: ✅ XX
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> Remaining: 🔄 XX
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## 📘 Folder Structure
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## 📁 Folder Structure (SEO-Optimized)
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Leetcode-250/
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│
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├── Arrays/
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│ ├── 1_Two_Sum.py
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│ └── 121_Best_Time_to_Buy_and_Sell_Stock.py
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├── arrays_strings/
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│ ├── 1_two_sum.py
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│ └── 121_best_time_to_buy_and_sell_stock.py
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│
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├── dp/
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│ ├── 70_climbing_stairs.py
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│ └── 198_house_robber.py
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│
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├── trees/
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│ ├── 94_binary_tree_inorder_traversal.py
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│ └── 104_maximum_depth_of_binary_tree.py
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│
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├── sliding_window/
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│ └── 3_longest_substring_without_repeating_characters.py
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│
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├── DP/
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│ └── 70_Climbing_Stairs.py
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├── stack_queue/
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│ └── 20_valid_parentheses.py
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│
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├── Trees/
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│ └── 94_Binary_Tree_Inorder_Traversal.py
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├── binary_search/
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│ └── 33_search_in_rotated_sorted_array.py
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│
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├── README.md
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├── backtracking/
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│ └── 46_permutations.py
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│
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├── heap_greedy/
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│ └── 253_meeting_rooms_ii.py
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│
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├── bit_manipulation/
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│ └── 136_single_number
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You said:
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folder structure not come in same format so i cant copy
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ChatGPT said:
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Here is the complete copy-paste-ready README.md with a proper folder structure displayed in raw text format (so it won’t break when pasted). This version is perfect for GitHub and SEO-optimized for Google:
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python
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markdown
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Copy
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Edit
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# 🧠 Leetcode 250 - Mastering Top Coding Interview Problems
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Welcome to the **Leetcode 250** repository – a curated collection of the **250 most frequently asked Leetcode questions** with **clean Python solutions**, detailed explanations, and optimized code — ideal for preparing for **FAANG**, **Big Tech**, and startup coding interviews.
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> ✅ If you’re searching for:
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> `Leetcode 250` · `Top 250 Leetcode Problems` · `FAANG Coding Prep` · `Python Interview Questions`
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> You’ve landed in the **right place**.
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---
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## 🚀 Why This Repository Stands Out
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✔️ 250 curated questions to maximize your **DSA preparation**
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✔️ Clean and readable **Python solutions**
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✔️ Includes **intuition, approach, time/space complexity**
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✔️ Structured by topic for ease of learning
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✔️ Suitable for **Google, Amazon, Meta, Microsoft, Netflix**
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✔️ Regular updates and daily commit logs
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✔️ Easy folder navigation and problem search
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---
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## 📚 Structured Problem Categories
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| 💡 Topic | 📌 Folder Name |
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|------------------------|-----------------------|
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| Arrays & Strings | `arrays_strings/` |
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| Linked Lists | `linked_lists/` |
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| Trees & Binary Trees | `trees/` |
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| Graphs & Traversals | `graphs/` |
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| Dynamic Programming | `dp/` |
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| Sliding Window | `sliding_window/` |
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| Binary Search | `binary_search/` |
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| Backtracking | `backtracking/` |
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| Stack & Queues | `stack_queue/` |
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| Heap & Greedy | `heap_greedy/` |
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| Bit Manipulation | `bit_manipulation/` |
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| Math & Logic | `math_logic/` |
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| Others & Miscellaneous | `others/` |
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## 🧠 Example Format for Each Solution
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```python
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min_price = min(min_price, p)
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max_profit = max(max_profit, p - min_price)
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return max_profit
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Update: Daily commits on problem-solving
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📊 Progress Tracker
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✅ Total Questions: 250
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---
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🔄 Solved: XX
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📅 Updates: Daily commits
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## 📘 Folder Structure
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⭐ Stars, forks, and contributions are welcome!
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⭐ Support & Share
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If this project helps you:
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🌟 Give it a star
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🍴 Fork it to your profile
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🗣️ Share with friends and aspiring interview candidates
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