# Status Problem video Level Completes Likes 363 Evaluation of Infix expressions Medium % 0 361 Convert Prefix to Infix Expression Medium % 0 358 Infix, Postfix and Prefix Notations/Expressions Beginner % 0 357 Count Set bits in a given Number Beginner % 1 353 Reverse a given number Beginner % 1 352 Check if given number is perfect square - O(√N) Solution Beginner % 0 330 Check if Given Number is power of 2 Beginner % 1 327 Print First n numbers in Fibonacci Series Beginner % 0 319 Get the Sum of Digits in a number till it become a single digit Medium % 0 317 Check if given number is Prime - O(√N) Solution Medium % 0 316 Print First N Prime Numbers Beginner % 0 299 Minimum number of guesses needed to find a number Beginner % 0 293 Convert Number to base 3 String Representation Beginner % 1 167 Generate Well Ordered Passwords of a Given Length K Medium % 0 164 Print All Possible Subsets with Sum equal to a given Number Hard % 0 127 Numbers Palindrome in Both Decimal and Octal Beginner % 0 123 Colorful Numbers Hard % 3 Evaluation of Infix expressions Convert Prefix to Infix Expression Infix, Postfix and Prefix Notations/Expressions Count Set bits in a given Number Reverse a given number Check if given number is perfect square - O(√N) Solution Check if Given Number is power of 2 Print First n numbers in Fibonacci Series Get the Sum of Digits in a number till it become a single digit Check if given number is Prime - O(√N) Solution Print First N Prime Numbers Minimum number of guesses needed to find a number Convert Number to base 3 String Representation Generate Well Ordered Passwords of a Given Length K Print All Possible Subsets with Sum equal to a given Number Numbers Palindrome in Both Decimal and Octal Colorful Numbers 1 2
