# ColdFusion

When you're logged in, you can say `exercism fetch coldfusion` to get the next available exercise on the track.

Every time you submit a solution to an exercise, you will get the next in line the next time you fetch.

If you want to try a specific exercise, you can always fetch it directly (commands are listed below).

The exercises are ordered roughly in order of difficulty.

### Available Exercises

• Hello World The classical introductory exercise. Just say "Hello, World!"
• Leap Given a year, report if it is a leap year.
• Raindrops Convert a number to a string, the contents of which depend on the number's factors.
• Scrabble Score Given a word, compute the scrabble score for that word.
• Difference Of Squares Find the difference between the square of the sum and the sum of the squares of the first N natural numbers.
• Secret Handshake Given a decimal number, convert it to the appropriate sequence of events for a secret handshake.
• Space Age Given an age in seconds, calculate how old someone is in terms of a given planet's solar years.
• Acronym Convert a long phrase to its acronym
• Rna Transcription Given a DNA strand, return its RNA complement (per RNA transcription).
• Pangram Determine if a sentence is a pangram.
• Hamming Calculate the Hamming difference between two DNA strands.
• Gigasecond Calculate the moment when someone has lived for 10^9 seconds.
• Sum Of Multiples Given a number, find the sum of all the multiples of particular numbers up to but not including that number.
• Luhn Given a number determine whether or not it is valid per the Luhn formula.
• Triangle Determine if a triangle is equilateral, isosceles, or scalene.
• Largest Series Product Given a string of digits, calculate the largest product for a contiguous substring of digits of length n.
• Grains Calculate the number of grains of wheat on a chessboard given that the number on each square doubles.
• Atbash Cipher Create an implementation of the atbash cipher, an ancient encryption system created in the Middle East.
• Nth Prime Given a number n, determine what the nth prime is.
• Pig Latin Implement a program that translates from English to Pig Latin
• Flatten Array Take a nested list and return a single list with all values except nil/null