Practice
Coding Problems
Problems
150 problemsPage 2 of 7
- Easy
First Non-Repeating Character
StringsJavaPythonCC++JavaScript - Easy
Check Anagram
StringsJavaPythonCC++JavaScript - Easy
Remove Duplicate Characters
StringsJavaPythonCC++JavaScript - Easy
Reverse Words in a Sentence
StringsJavaPythonCC++JavaScript - Easy
Longest Common Prefix
StringsJavaPythonCC++JavaScript - Medium
Longest Substring Without Repeating Characters
StringsJavaPythonCC++JavaScript - Easy
Linear Search
Searching & SortingJavaPythonCC++JavaScript - Easy
Binary Search
Searching & SortingJavaPythonCC++JavaScript - Easy
First Occurrence in Sorted Array
Searching & SortingJavaPythonCC++JavaScript - Easy
Last Occurrence in Sorted Array
Searching & SortingJavaPythonCC++JavaScript - Easy
Count Occurrences in Sorted Array
Searching & SortingJavaPythonCC++JavaScript - Easy
Bubble Sort
Searching & SortingJavaPythonCC++JavaScript - Easy
Selection Sort
Searching & SortingJavaPythonCC++JavaScript - Easy
Insertion Sort
Searching & SortingJavaPythonCC++JavaScript - Medium
Merge Sort
Searching & SortingJavaPythonCC++JavaScript - Medium
Quick Sort
Searching & SortingJavaPythonCC++JavaScript - Medium
Kth Smallest Element
Searching & SortingJavaPythonCC++JavaScript - Medium
Kth Largest Element
Searching & SortingJavaPythonCC++JavaScript - Medium
Search in Rotated Sorted Array
Searching & SortingJavaPythonCC++JavaScript - Easy
Square Root Using Binary Search
Searching & SortingJavaPythonCC++JavaScript - Medium
Merge Overlapping Intervals
Searching & SortingJavaPythonCC++JavaScript - Easy
Frequency Map
HashingJavaPythonCC++JavaScript - Easy
Find Duplicate Values
HashingJavaPythonCC++JavaScript - Medium
Zero Sum Subarray
HashingJavaPythonCC++JavaScript