# Status Problem Level Completes Likes 71 Collatz Conjecture - Steps to transform Number to 1 Beginner % 0 72 String to Integer (AtoI - ASCII to Integer) Beginner % 1 73 Find all Prime Numbers less than equal to N | Set 1 Beginner % 0 74 Find third largest element in a given array Beginner % 0 75 Find duplicates Characters in the given String Beginner % 0 76 Sum of all Unique elements in a given array Beginner % 0 77 Java program to find the largest element in array Beginner % 0 78 Find three smallest elements in a given array Beginner % 0 79 Stack Java Class - Explained Beginner % 0 80 Infix, Postfix and Prefix Notations/Expressions Beginner % 0 81 Count Set bits in a given Number Beginner % 1 82 Check if array contains all unique or distinct numbers. Beginner % 0 83 Product of all Unique elements in a given array. Beginner % 0 84 Reverse a given number – Java Code Beginner % 1 85 Check if given number is perfect square - O(√N) Solution Beginner % 0 86 Find first three largest elements in a given array Beginner % 0 87 Selection Sort – Java Implementation Beginner % 0 88 Print Number with its Sign in Java Beginner % 0 89 Valid Brackets – Part 2 | Stack Method Beginner % 0 90 Find the roots of Quadratic Equation – Java Program Beginner % 0 91 Given two strings validate the output string Beginner % 0 92 Find two smallest elements in a given array Beginner % 0 93 Front and Back Search in an Array Beginner % 0 94 Print all Unique elements in a given array Beginner % 0 95 Multiply with power of 2 without using pow() or * operator Beginner % 1 96 Find first two largest elements in a given array Beginner % 0 97 Calculate Logn base r – Java Implementation Beginner % 0 98 Java Program to find Sum the elements of an Array Beginner % 0 99 Insertion Sort – Java Implementation Beginner % 0 100 Find Largest and Smallest word in a given String Beginner % 0 101 Check if Given Number is power of 2. Beginner % 1 102 Rotate the given array in cycles Beginner % 0 103 Print First n numbers in Fibonacci Series Beginner % 0 104 Find the Area and Perimeter of Rectangle – Java Program Beginner % 0 105 Stack Data Structure – Introduction and Implementation Beginner % 0 Collatz Conjecture - Steps to transform Number to 1 String to Integer (AtoI - ASCII to Integer) Find all Prime Numbers less than equal to N | Set 1 Find third largest element in a given array Find duplicates Characters in the given String Sum of all Unique elements in a given array Java program to find the largest element in array Find three smallest elements in a given array Stack Java Class - Explained Infix, Postfix and Prefix Notations/Expressions Count Set bits in a given Number Check if array contains all unique or distinct numbers. Product of all Unique elements in a given array. Reverse a given number – Java Code Check if given number is perfect square - O(√N) Solution Find first three largest elements in a given array Selection Sort – Java Implementation Print Number with its Sign in Java Valid Brackets – Part 2 | Stack Method Find the roots of Quadratic Equation – Java Program Given two strings validate the output string Find two smallest elements in a given array Front and Back Search in an Array Print all Unique elements in a given array Multiply with power of 2 without using pow() or * operator Find first two largest elements in a given array Calculate Logn base r – Java Implementation Java Program to find Sum the elements of an Array Insertion Sort – Java Implementation Find Largest and Smallest word in a given String Check if Given Number is power of 2. Rotate the given array in cycles Print First n numbers in Fibonacci Series Find the Area and Perimeter of Rectangle – Java Program Stack Data Structure – Introduction and Implementation 1 2 3 4 5 6 7
