Make your practice count.Sign in to track completed questions across devices. Everything is free to browse.
Interview question tracker
Sigmoid SDE 1
The 15 highest-frequency questions from all time. Finish the strongest signals first.
Top questions 15
| Done | Question | LeetCode |
|---|---|---|
| Binary Tree Zigzag Level Order Traversal | Solve | |
| Best Time to Buy and Sell Stock | Solve | |
| Move Zeroes | Solve | |
| Best Time to Buy and Sell Stock II | Solve | |
| Boats to Save People | Solve | |
| Coin Change | Solve | |
| Group Anagrams | Solve | |
| Longest Common Prefix | Solve | |
| Merge Intervals | Solve | |
| Min Stack | Solve | |
| Next Greater Element II | Solve | |
| Number of Islands | Solve | |
| Reverse Nodes in k-Group | Solve | |
| Rotting Oranges | Solve | |
| Valid Parentheses | Solve |