# Status Problem Level Completes Likes
2

Longest substring with at most two unique characters

Medium % 0
3

Java program to find the largest element in array

Beginner % 0
4

Linear Search Algorithm

Beginner % 0
5

Find the element which appears maximum number of times in the array.

Medium % 0
6

Find duplicates in an given array in O(n) time and O(1) extra space.

Medium % 0
7

Track the Maximum Element in a Stack.

Medium % 1
8

Search an Element in a Rotated Sorted Array

Medium % 0
9

Find a peak element in a Given Array

Beginner % 0

Longest substring with at most two unique characters

Java program to find the largest element in array

Linear Search Algorithm

Find the element which appears maximum number of times in the array.

Find duplicates in an given array in O(n) time and O(1) extra space.

Track the Maximum Element in a Stack.

Search an Element in a Rotated Sorted Array

Find a peak element in a Given Array