Problems # Status Problem Level Completes Likes 36 Remove Vowels from a given String Beginner % 0 37 Find number of Distinct Permutations of a String Medium % 0 38 Fizz Buzz Challenge - Java Implementation Beginner % 0 39 Maximum Difference between two elements in array – Largest Gap Problem Beginner % 0 40 Minimum number of guesses needed to find a specific number Beginner % 0 41 Replace all vowels with next consonant in a given string Medium % 0 42 Convert Number to base 3 String Representation Beginner % 0 43 Graph – Depth First Traversal Medium % 1 44 Number of bit to be flipped to convert one number to another. Beginner % 0 45 Separate even and odd integers in a given array Beginner % 0 46 Separate 0’s and 1’s in a given array Beginner % 0 47 Find three elements in an array that sum to a given value Beginner % 0 48 Majority Element – Part 1 Beginner % 0 49 Check whether the given number is a perfect square Beginner % 0 50 Find the Index from which 0 starts Beginner % 0 51 Find the increasing OR decreasing point in an array Beginner % 0 52 Find the only element in array which appears only once Beginner % 0 53 Algorithm to calculate power(k,n). Beginner % 0 54 Swap two numbers without using extra variable Beginner % 0 55 Number of 1’s in bit representation of a number Beginner % 0 56 Find the right most unset bit OR zero bit of a number Beginner % 0 57 Find the two repeating elements in a given array | 6 Approaches Medium % 1 58 Find the right most set bit of a number Beginner % 0 59 Find two elements whose sum is closest to zero Medium % 0 60 Find the last non repeating character in a given string. Beginner % 0 61 Find the first non repeating character in a given string Beginner % 0 62 Find the first repeating character in a given string Beginner % 0 63 Implement Stack Using Linked List Beginner % 0 64 Search the Element in a binary tree - With and Without Recursion Beginner % 0 65 Find the Kth Smallest/Largest Element in an Array Beginner % 0 66 Dynamic Programming - Stairs Climbing Puzzle Beginner % 0 67 Find a Number occurring odd number of times in a Given array Beginner % 0 68 Convert Decimal into Irreducible Fraction Beginner % 0 69 Delete X Nodes After Y Nodes In a Linked List Beginner % 0 70 Get the Height of a Node in a Binary Tree Medium % 0 Remove Vowels from a given String Find number of Distinct Permutations of a String Fizz Buzz Challenge - Java Implementation Maximum Difference between two elements in array – Largest Gap Problem Minimum number of guesses needed to find a specific number Replace all vowels with next consonant in a given string Convert Number to base 3 String Representation Graph – Depth First Traversal Number of bit to be flipped to convert one number to another. Separate even and odd integers in a given array Separate 0’s and 1’s in a given array Find three elements in an array that sum to a given value Majority Element – Part 1 Check whether the given number is a perfect square Find the Index from which 0 starts Find the increasing OR decreasing point in an array Find the only element in array which appears only once Algorithm to calculate power(k,n). Swap two numbers without using extra variable Number of 1’s in bit representation of a number Find the right most unset bit OR zero bit of a number Find the two repeating elements in a given array | 6 Approaches Find the right most set bit of a number Find two elements whose sum is closest to zero Find the last non repeating character in a given string. Find the first non repeating character in a given string Find the first repeating character in a given string Implement Stack Using Linked List Search the Element in a binary tree - With and Without Recursion Find the Kth Smallest/Largest Element in an Array Dynamic Programming - Stairs Climbing Puzzle Find a Number occurring odd number of times in a Given array Convert Decimal into Irreducible Fraction Delete X Nodes After Y Nodes In a Linked List Get the Height of a Node in a Binary Tree 1 2 3