Constructive-Search Algorithms

[AlexandreAndrade00]

• [x] #31
• [x] Greedy construction with random tie-breaking
• [x] Greedy randomized adaptive construction
• [x] GRASP
• [x] Beam search

[lutzzdias]

I guess this would be the random tiebreak and GRASP implementation? If so, you may ignore the comment I made on #32.