Work for Cousera Aglorithm-1&2
Part I
CourseWebpage: https://www.coursera.org/learn/algorithms-part1/
WeightedUnionFind: http://coursera.cs.princeton.edu/algs4/assignments/percolation.html
Queues: http://coursera.cs.princeton.edu/algs4/assignments/queues.html
Collinear Points: http://coursera.cs.princeton.edu/algs4/assignments/collinear.html
8-Puzzel: http://coursera.cs.princeton.edu/algs4/assignments/8puzzle.html