Practice problems across 75+ categories
Practice coding problems across all companies and topics • 3600 problems | 879 Easy | 1856 Medium | 842 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1517 | Find Users With Valid E-Mails | Easy | Database |
| 1518 | Water Bottles | Easy | MathSimulation |
| 1519 | Number of Nodes in the Sub-Tree With the Same Label | Medium | Hash TableTreeDepth-First Search |
| 1520 | Maximum Number of Non-Overlapping Substrings | Hard | StringGreedy |
| 1521 | Find a Value of a Mysterious Function Closest to Target | Hard | ArrayBinary SearchBit Manipulation |
| 1522 | Diameter of N-Ary Tree | Medium | TreeDepth-First Search |
| 1523 | Count Odd Numbers in an Interval Range | Easy | Math |
| 1524 | Number of Sub-arrays With Odd Sum | Medium | ArrayMathDynamic Programming |
| 1525 | Number of Good Ways to Split a String | Medium | Hash TableStringDynamic Programming |
| 1526 | Minimum Number of Increments on Subarrays to Form a Target Array | Hard | ArrayDynamic ProgrammingStack |
| 1527 | Patients With a Condition | Easy | Database |
| 1528 | Shuffle String | Easy | ArrayString |
| 1529 | Minimum Suffix Flips | Medium | StringGreedy |
| 1530 | Number of Good Leaf Nodes Pairs | Medium | TreeDepth-First SearchBinary Tree |
| 1531 | String Compression II | Hard | StringDynamic Programming |
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.
