Practice problems across 75+ categories
Practice problems frequently asked at Meta • 2900 problems | 652 Easy | 1528 Medium | 703 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 2056 | Number of Common Factors | Easy | MathEnumerationNumber Theory |
| 2057 | Number of Connected Components in an Undirected Graph | Medium | Depth-First SearchBreadth-First SearchUnion Find |
| 2058 | Number Of Corner Rectangles | Medium | ArrayMathDynamic Programming |
| 2059 | Number of Different Integers in a String | Easy | Hash TableString |
| 2060 | Number of Different Subsequences GCDs | Hard | ArrayMathCounting |
| 2061 | Number of Digit One | Hard | MathDynamic ProgrammingRecursion |
| 2062 | Number of Distinct Averages | Easy | ArrayHash TableTwo Pointers |
| 2063 | Number of Distinct Roll Sequences | Hard | Dynamic ProgrammingMemoization |
| 2064 | Number of Distinct Substrings in a String | Unknown | StringTrieRolling Hash |
| 2065 | Number of Divisible Substrings | Medium | Hash TableStringCounting |
| 2066 | Number of Divisible Triplet Sums | Medium | ArrayHash Table |
| 2067 | Number of Employees Who Met the Target | Easy | Array |
| 2068 | Number of Enclaves | Medium | ArrayDepth-First SearchBreadth-First Search |
| 2069 | Number of Equal Count Substrings | Medium | Hash TableStringSliding Window |
| 2070 | Number of Equivalent Domino Pairs | Easy | ArrayHash TableCounting |
Powerful online tools to boost your productivity
Coding Ground For Developers
Code, Edit, Run and ShareIgnite your coding potential on Coding Ground - an immersive online platform for hands-on learning, collaboration, and skill development.
