Stacks Easy
| # | Title | Solution | Time | Space | Video |
|---|---|---|---|---|---|
| 155 | Min Stack | Python | O(1) | O(n) | |
| 225 | Implement Stack using Queues | Python | push/pop: O(1) top:O(n) | O(n) | |
| 20 | Valid Parentheses | Python | O(n) | O(n) |
| # | Title | Solution | Time | Space | Video |
|---|---|---|---|---|---|
| 155 | Min Stack | Python | O(1) | O(n) | |
| 225 | Implement Stack using Queues | Python | push/pop: O(1) top:O(n) | O(n) | |
| 20 | Valid Parentheses | Python | O(n) | O(n) |