1️⃣ Number of Islands

Companies: Amazon, Microsoft, Google
🔗 https://leetcode.com/problems/number-of-islands/

2️⃣ Minimum Window Substring

Companies: Amazon, Adobe, Microsoft
🔗 https://leetcode.com/problems/minimum-window-substring/

3️⃣ Word Break

Companies: Amazon, Google
🔗 https://leetcode.com/problems/word-break/

4️⃣ Clone Graph

Companies: Uber, Microsoft, Amazon
🔗 https://leetcode.com/problems/clone-graph/

5️⃣ Course Schedule

Companies: Amazon, Microsoft, Google
🔗 https://leetcode.com/problems/course-schedule/

6️⃣ Top K Frequent Elements

Companies: Amazon, Google, Facebook
🔗 https://leetcode.com/problems/top-k-frequent-elements/

7️⃣ Find Median from Data Stream

Companies: Google, Facebook, Twitter
🔗 https://leetcode.com/problems/find-median-from-data-stream/

8️⃣ Word Ladder

Companies: Amazon, Microsoft
🔗 https://leetcode.com/problems/word-ladder/

9️⃣ Binary Search Tree Iterator

Companies: Microsoft, Amazon, Google
🔗 https://leetcode.com/problems/binary-search-tree-iterator/

🔟 House Robber

Companies: Amazon, Adobe, Google
🔗 https://leetcode.com/problems/house-robber/