Delphi Pascal

via Exercism

Go to class Write review

Delphi is an Object Pascal based programming language for desktop, mobile, web, and console software development. Delphi was the code name for a yet unnamed product during its initial development prior to its debut in 1995. Delphi was originally developed by Borland, lead by Anders Heilsberg as a tool for Windows as the successor of . Delphi added full object-orientation to the existing language, and since then the language has grown and supports many other modern language features, including:

Syllabus

Hello World

Exercism's classic introductory exercise. Just say "Hello, World!".

Two Fer

Create a sentence of the form "One for X, one for me.".

Leap

Determine whether a given year is a leap year.

Gigasecond

Given a moment, determine the moment that would be after a gigasecond has passed.

Resistor Color

Convert a resistor band's color to its numeric representation.

Space Age

Given an age in seconds, calculate how old someone is in terms of a given planet's solar years.

High Scores

Manage a player's High Score list.

Hamming

Calculate the Hamming distance between two DNA strands.

Nucleotide Count

Given a DNA string, compute how many times each nucleotide occurs in the string.

Robot Name

Manage robot factory settings.

Allergies

Given a person's allergy score, determine whether or not they're allergic to a given item, and their full list of allergies.

Grade School

Given students' names along with the grade that they are in, create a roster for the school.

Rotational Cipher

Create an implementation of the rotational cipher, also sometimes called the Caesar cipher.

Circular Buffer

A data structure that uses a single, fixed-size buffer as if it were connected end-to-end.

Clock

Implement a clock that handles times without dates.

Bob is a lackadaisical teenager. In conversation, his responses are very limited.

Matching Brackets

Make sure the brackets and braces all match.

Tournament

Tally the results of a small football competition.

Pangram

Determine if a sentence is a pangram.

Isogram

Determine if a word or phrase is an isogram.

Acronym

Convert a long phrase to its acronym.

Grains

Calculate the number of grains of wheat on a chessboard given that the number on each square doubles.

Perfect Numbers

Determine if a number is perfect, abundant, or deficient based on Nicomachus' (60 - 120 CE) classification scheme for positive integers.

Collatz Conjecture

Calculate the number of steps to reach 1 using the Collatz conjecture.

Phone Number

Clean up user-entered phone numbers so that they can be sent SMS messages.

Scrabble Score

Given a word, compute the Scrabble score for that word.

Meetup

Calculate the date of meetups.

Difference of Squares

Find the difference between the square of the sum and the sum of the squares of the first N natural numbers.

Series

Given a string of digits, output all the contiguous substrings of length `n` in that string.

Sum of Multiples

Given a number, find the sum of all the multiples of particular numbers up to but not including that number.

All Your Base

Convert a number, represented as a sequence of digits in one base, to any other base.

Pascal's Triangle

Compute Pascal's triangle up to a given number of rows.

Prime Factors

Compute the prime factors of a given natural number.

Armstrong Numbers

Determine if a number is an Armstrong number.

Darts

Calculate the points scored in a single toss of a Darts game.

Triangle

Determine if a triangle is equilateral, isosceles, or scalene.

Rational Numbers

Implement rational numbers.

Raindrops

Convert a number into its corresponding raindrop sounds - Pling, Plang and Plong.

Beer Song

Produce the lyrics to that beloved classic, that field-trip favorite: 99 Bottles of Beer on the Wall.

Proverb

For want of a horseshoe nail, a kingdom was lost, or so the saying goes. Output the full text of this proverbial rhyme.

Protein Translation

Translate RNA sequences into proteins.

Secret Handshake

Given a decimal number, convert it to the appropriate sequence of events for a secret handshake.

Roman Numerals

Convert modern Arabic numbers into Roman numerals.

Change the data format for scoring a game to more easily add other languages.

Parallel Letter Frequency

Count the frequency of letters in texts using parallel computation.

Sieve

Use the Sieve of Eratosthenes to find all the primes from 2 up to a given number.

Anagram

Given a word and a list of possible anagrams, select the correct sublist.

Binary Search

Implement a binary search algorithm.

Kindergarten Garden

Given a diagram, determine which plants each child in the kindergarten class is responsible for.

Matrix

Given a string representing a matrix of numbers, return the rows and columns of that matrix.

Crypto Square

Implement the classic method for composing secret messages called a square code.

Food Chain

Generate the lyrics of the song 'I Know an Old Lady Who Swallowed a Fly'.

Minesweeper

Add the numbers to a minesweeper board.

Wordy

Parse and evaluate simple math word problems returning the answer as an integer.

Atbash Cipher

Create an implementation of the Atbash cipher, an ancient encryption system created in the Middle East.

Binary Search Tree

Insert and search for numbers in a binary tree.

OCR Numbers

Given a 3 x 4 grid of pipes, underscores, and spaces, determine which number is represented, or whether it is garbled.

Saddle Points

Detect saddle points in a matrix.

Palindrome Products

Detect palindrome products in a given range.

Queen Attack

Given the position of two queens on a chess board, indicate whether or not they are positioned so that they can attack each other.

Robot Simulator

Write a robot simulator.

Bank Account

Simulate a bank account supporting opening/closing, withdraws, and deposits of money. Watch out for concurrent transactions!

ISBN Verifier

Check if a given string is a valid ISBN-10 number.

Twelve Days

Output the lyrics to 'The Twelve Days of Christmas'.

Word Count

Given a phrase, count the occurrences of each word in that phrase.

Luhn

Given a number determine whether or not it is valid per the Luhn formula.

Markdown

Refactor a Markdown parser.

Diamond

Given a letter, print a diamond starting with 'A' with the supplied letter at the widest point.

Book Store

To try and encourage more sales of different books from a popular 5 book series, a bookshop has decided to offer discounts of multiple-book purchases.