# Status Problem video Level Completes Likes 323 Reverse the given String using Stack Beginner % 0 321 Bubble Sort and Optimized Bubble Sort Beginner % 1 320 Find the Area of Triangle using base and height Beginner % 0 318 Calculate Log2n without using built-in function Beginner % 1 316 Print First N Prime Numbers Beginner % 0 315 Print My IP Address Beginner % 0 314 Find the Circumference of a Circle Beginner % 0 313 Check if two Strings are equal without using built-in function Beginner % 0 312 Remove Vowels from a given String Beginner % 0 311 Linear Search Algorithm Beginner % 0 309 Floyd’s Triangle Beginner % 0 308 Print Numbers from 1 to N without using loop Beginner % 0 306 Determine if Given Year is Leap Year Beginner % 0 304 Find the Area of a Circle Beginner % 0 302 Fizz Buzz Challenge Beginner % 0 301 Divide with power of 2 without using pow() or / operator Beginner % 1 300 Maximum Difference between two elements in array – Largest Gap Problem Beginner % 0 299 Minimum number of guesses needed to find a number Beginner % 0 298 Left Shift (<<) and Right Shift (>>) Operators Beginner % 1 295 Find the Area of a Triangle Using coordinates Beginner % 0 294 Find if Triangle can be formed using given 3 sides Beginner % 0 293 Convert Number to base 3 String Representation Beginner % 1 292 Find the Area of a Triangle Given Three Sides – Heron’s Formula Beginner % 0 291 Find Factorial of a given Number Beginner % 0 290 Reverse a String using Recursion Beginner % 0 289 Find Sum of all Digits of a Number Beginner % 0 288 Print maximum occurring character in a String Beginner % 0 270 Weighted Graph Implementation – JAVA Beginner % 1 267 Graph – Depth First Search using Recursion Beginner % 1 266 Graph Implementation – Adjacency Matrix | Set 3 Beginner % 1 265 Java Pair Class Beginner % 0 264 Graph Implementation – Adjacency List - Better| Set 2 Beginner % 0 260 Deque Implementation – Java Beginner % 0 250 Nuts & Bolts Problem (Lock & Key problem) Beginner % 0 242 Number of bit to be flipped to convert one number to another. Beginner % 1 Reverse the given String using Stack Bubble Sort and Optimized Bubble Sort Find the Area of Triangle using base and height Calculate Log2n without using built-in function Print First N Prime Numbers Print My IP Address Find the Circumference of a Circle Check if two Strings are equal without using built-in function Remove Vowels from a given String Linear Search Algorithm Floyd’s Triangle Print Numbers from 1 to N without using loop Determine if Given Year is Leap Year Find the Area of a Circle Fizz Buzz Challenge Divide with power of 2 without using pow() or / operator Maximum Difference between two elements in array – Largest Gap Problem Minimum number of guesses needed to find a number Left Shift (<<) and Right Shift (>>) Operators Find the Area of a Triangle Using coordinates Find if Triangle can be formed using given 3 sides Convert Number to base 3 String Representation Find the Area of a Triangle Given Three Sides – Heron’s Formula Find Factorial of a given Number Reverse a String using Recursion Find Sum of all Digits of a Number Print maximum occurring character in a String Weighted Graph Implementation – JAVA Graph – Depth First Search using Recursion Graph Implementation – Adjacency Matrix | Set 3 Java Pair Class Graph Implementation – Adjacency List - Better| Set 2 Deque Implementation – Java Nuts & Bolts Problem (Lock & Key problem) Number of bit to be flipped to convert one number to another. 1 2 3 4 5 6 7