| Question Link | Logic ( Click for code ) | C |
|---|---|---|
| 1. Buy & Sell Stock IV | H | |
| 2. LongestMountain | while iterating : find inc, find dec , ht = max(inc+dec+1,ht) | M |
| 3. Sliding Window Maximum | H | |
| 4. Brackets in MatrixChain | ||
| 5. Phone Directory | ||
| 6. First Non Repeating Char | ||
| 7. Max of all subarray | ||
| 8. Ways to Nth Chair | ||
| 9. Valid Sudoku | M | |
| 10. Nuts & Bolts | ||
| 11. Serialize & Desrialize Tree | ||
| 12. ColumnNameFrom# | ||
| 13. Rotten Oranges | ||
| 14. Burning Tree | ||
| 15. Delete M nodes after N |