Problems # Status Problem Level Completes Likes 1 Print Processes and its messages from a given log file Medium % 0 2 Find two elements whose sum is closest to zero Medium % 0 3 Find the element which appears maximum number of times in the array. Medium % 0 4 Find duplicates in an given array in O(n) time and O(1) extra space. Medium % 0 5 Find the last non repeating character in a given string. Beginner % 0 6 Find the last repeating character in a given string. Beginner % 0 7 The Word Break Problem Hard % 0 8 Find Whether Two Strings are Permutation of each other Beginner % 1 9 Hash Table Implementation Beginner % 0 Print Processes and its messages from a given log file 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) extra 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 Implementation 1