Easy 2 point Medium 4 points Hard 6 points Ninja 10 points

Question Type Level Solve
Write a function that creates a cipher from the given string using next alphabet? String Medium Solve
Write a function to rotate the matrix by 90 degree clockwise? Array Medium Solve
Write a function to rotate the matrix by 90 degree counter clockwise? Array Medium Solve
Write a function to remove all duplicate numbers in the given list? Array Medium Solve
Write a function to find out how many days does it take a virus to exceed the given number? Number Medium Solve
Write a function to return first n narcissistic numbers? Math Medium Solve
Write a function to check whether the given number is a happy number? Math Medium Solve
Write a function to find the remainder when a is divided by b without using % operator? Challenge Medium Solve
Write a function to add two numbers without using the + operator? Challenge Medium Solve
Write a function to find the difference of two numbers without using - operator? Challenge Medium Solve