All companies
American Express
8 Easy11 Medium4 Hard23 total
| No. | Problem | Difficulty | Frequency |
|---|---|---|---|
| 1521 | Find a Value of a Mysterious Function Closest to Target | Hard | |
| 3013 | Divide an Array Into Subarrays With Minimum Cost II | Hard | |
| 3010 | Divide an Array Into Subarrays With Minimum Cost I | Easy | |
| 1647 | Minimum Deletions to Make Character Frequencies Unique | Medium | |
| 1201 | Ugly Number III | Medium | |
| 2278 | Percentage of Letter in String | Easy | |
| 1224 | Maximum Equal Frequency | Hard | |
| 2202 | Maximize the Topmost Element After K Moves | Medium | |
| 2317 | Maximum XOR After Operations | Medium | |
| 1775 | Equal Sum Arrays With Minimum Number of Operations | Medium | |
| 2997 | Minimum Number of Operations to Make Array XOR Equal to K | Medium | |
| 1 | Two Sum | Easy | |
| 242 | Valid Anagram | Easy | |
| 3 | Longest Substring Without Repeating Characters | Medium | |
| 121 | Best Time to Buy and Sell Stock | Easy | |
| 1304 | Find N Unique Integers Sum up to Zero | Easy | |
| 15 | 3Sum | Medium | |
| 189 | Rotate Array | Medium | |
| 46 | Permutations | Medium | |
| 205 | Isomorphic Strings | Easy | |
| 14 | Longest Common Prefix | Easy | |
| 142 | Linked List Cycle II | Medium | |
| 1250 | Check If It Is a Good Array | Hard |