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Shorya22/Leetcode-250-Python-DSA
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Welcome to theLeetcode 250 repository – a curated collection of the250 most frequently asked Leetcode questions withclean Python solutions, detailed explanations, and optimized code — ideal for preparing forFAANG,Big Tech, and startup coding interviews.
✅ If you’re searching for:
Leetcode 250·Top 250 Leetcode Problems·FAANG Coding Prep·Python Interview QuestionsMost Asked Leetcode Questions·Leetcode DSA Sheet·Leetcode for Big Tech InterviewsData Structures and Algorithms in Python·Top Leetcode List 2024·Best Leetcode Questions to PracticeLeetcode Pattern-Based Practice·Python Coding Interview Guide·Google Amazon Meta Interview LeetcodeTop DSA Problems for Product Based Companies·Coding Round Preparation in PythonNeetcode 150 vs Leetcode 250·Leetcode Python Tracker·Crack the Coding Interview with LeetcodeYou’ve landed in theright place.
✔️ 250 curated questions to maximize yourDSA preparation
✔️ Clean and readablePython solutions
✔️ Includesintuition, approach, time/space complexity
✔️ Structured by topic for ease of learning
✔️ Suitable forGoogle, Amazon, Meta, Microsoft, Netflix
✔️ Regular updates and daily commit logs
✔️ Easy folder navigation and problem search
| 💡 Topic | 📌 Folder Name | 📊 Problem Count |
|---|---|---|
| Arrays & Strings | arrays_strings/ | ~40 problems |
| Linked Lists | linked_lists/ | ~20 problems |
| Trees & Binary Trees | trees/ | ~35 problems |
| Graphs & Traversals | graphs/ | ~25 problems |
| Dynamic Programming | dp/ | ~40 problems |
| Sliding Window | sliding_window/ | ~20 problems |
| Binary Search | binary_search/ | ~15 problems |
| Backtracking | backtracking/ | ~20 problems |
| Stack & Queues | stack_queue/ | ~15 problems |
| Heap & Greedy | heap_greedy/ | ~15 problems |
| Bit Manipulation | bit_manipulation/ | ~10 problems |
| Math & Logic | math_logic/ | ~10 problems |
| Others & Miscellaneous | others/ | ~5 problems |
📖Detailed topic guide: SeeTOPICS.md for comprehensive explanations of each category.
📊 Progress Tracker
✅ Total Questions: 250
🔄 Solved: XX
📅 Updates: Daily commits
🎯Track your progress: Run
python progress_tracker.pyto monitor your completion status across all categories.
⭐ Stars, forks, and contributions are welcome!
⭐ Support & Share
If this project helps you:
🌟 Give it a star
🍴 Fork it to your profile
🗣️ Share with friends and aspiring interview candidates
"""Problem: 121. Best Time to Buy and Sell StockLink: https://leetcode.com/problems/best-time-to-buy-and-sell-stock/Level: EasyApproach:- Track the minimum price seen so far- Track the maximum profit if sold todayTime Complexity: O(n)Space Complexity: O(1)"""defmaxProfit(prices):min_price=float('inf')max_profit=0forpinprices:min_price=min(min_price,p)max_profit=max(max_profit,p-min_price)returnmax_profit
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🧠 Mastering the Top 250 Leetcode Problems for FAANG & Big Tech Interviews | Python Solutions with Intuition, Patterns, and Clean Code.
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