Coursera-Algorithms-I

Code for programming assignments in Java from the Coursera course, Algorithms Part I.

Requires the stdlib.jar and algs4.jar to run, available from the course site.

Week 1 - Union / Percolation

• Percolation.java - A model for the percolation problem, determines if a 2d system of open / closed sites percolates from top to bottom.
• PercolationStats.java - Generates statistics using the percolation model.

Week 2 - Queues, Stacks and Bags

• Deque.java - A generic double ended queue implementation, double-linked list based.
• RandomizedQueue.java - A generic random queue implementation, array based.
• Subset.java - Prints n number of random strings provided through standard input.

Week 3 - Collinear Points

• Point.java - A simple point class.
• Brute.java - A n^4 alg for calculating 4 collinear points.
• Fast.java - A fast implementation for finding collinear points.

Week 4 - 8 Puzzle

• Board.java - Represents a sliding puzzle board.
• Solver.java - Uses A* and to find solution to the puzzle board.

Week 5 - KdTree

• PointSet.java - A set of points on a 2D Euclidian plane, some simple function like nearest and contains.
• kDTree.java - Uses a 2d tree to more efficiently perform functions such as nearest and contains.