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