# Status Problem video Level Completes Likes
217

Find two elements whose sum is closest to zero

Medium % 1
216

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

Medium % 0
215

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

Medium % 0
214

Find the last non repeating character in a given string.

Beginner % 0
213

Find the last repeating character in a given string

Beginner % 0
161

The Word Break Problem

Hard % 0
23

Find Whether Two Strings are Permutation of each other

Beginner % 1
3

Hash Table - Java

Beginner % 0

Find two elements whose sum is closest to zero

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) space

Find the last non repeating character in a given string.

Find the last repeating character in a given string

The Word Break Problem

Find Whether Two Strings are Permutation of each other

Hash Table - Java