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13 problems total
| Title | Difficulty | Videos | Companies |
|---|---|---|---|
| Next Permutation | medium | - | |
| Permutations of Array 1 | medium | - | |
| Spiral Matrix 1 - Return | medium | ||
| Best Time To Buy And Sell Stock 1 - only one transaction | easy | ||
| Binary Tree Path Sum - Maximum between any two nodes | hard | ||
| Find Median from Data Stream | hard | ||
| Top K Frequent Elements | medium | ||
| Lexicographical Numbers | medium | ||
| Remove K Digits | medium | - | |
| Frog Jump | hard | - | |
| Reverse Pairs | hard | - | |
| Basic Calculator 3 | hard | - | |
| Greatest Sum Divisible by Three | medium | - |