Cognizant
51 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 3392. Count Subarrays of Length Three With a Condition | Easy | 100% | TopicsArray |
| 1. Two Sum | Easy | 94.5% | TopicsArrayHash Table |
| 9. Palindrome Number | Easy | 89.3% | TopicsMath |
| 3. Longest Substring Without Repeating Characters | Medium | 87.2% | TopicsHash TableStringSliding Window |
| 5. Longest Palindromic Substring | Medium | 85% | TopicsTwo PointersStringDynamic ProgrammingManacher |
| 2165. Smallest Value of the Rearranged Number | Medium | 79.8% | TopicsMathSorting |
| Sort Array By Absolute Value | Easy | 79.8% | TopicsArrayMathTwo PointersSorting |
| Second Highest Salary | Medium | 76.7% | TopicsDatabase |
| 283. Move Zeroes | Easy | 73.1% | TopicsArrayTwo Pointers |
| 20. Valid Parentheses | Easy | 73.1% | TopicsStringStackBracket Sequences |
| 121. Best Time to Buy and Sell Stock | Easy | 73.1% | TopicsArrayDynamic Programming |
| Fibonacci Number | Easy | 68.8% | TopicsMathDynamic ProgrammingRecursionMemoization |
| 242. Valid Anagram | Easy | 68.8% | TopicsHash TableStringSorting |
| 4. Median of Two Sorted Arrays | Hard | 68.8% | TopicsArrayBinary SearchDivide and Conquer |
| 125. Valid Palindrome | Easy | 63.7% | TopicsTwo PointersString |
| 560. Subarray Sum Equals K | Medium | 63.7% | TopicsArrayHash TablePrefix Sum |
| 7. Reverse Integer | Medium | 57% | TopicsMath |
| Remove Duplicates from Sorted Array | Easy | 57% | TopicsArrayTwo Pointers |
| 88. Merge Sorted Array | Easy | 57% | TopicsArrayTwo PointersSorting |
| First Missing Positive | Hard | 57% | TopicsArrayHash Table |
| Replace Employee ID With The Unique Identifier | Easy | 57% | TopicsDatabase |
| Article Views I | Easy | 57% | TopicsDatabase |
| 136. Single Number | Easy | 57% | TopicsArrayBit Manipulation |
| Combine Two Tables | Easy | 57% | TopicsDatabase |
| 70. Climbing Stairs | Easy | 57% | TopicsMathDynamic ProgrammingMemoization |
