Блог пользователя ali.mashreghi

Автор ali.mashreghi, 11 лет назад, По-английски

Hello every one, I wonder if there is an exact or approximation algorithm for the following problem: given a complete weighted graph, find a a minimum spanning tree such that the degree of each non-leaf node is bigger than a constant number (say b).

  • Проголосовать: нравится
  • +7
  • Проголосовать: не нравится

»
11 лет назад, # |
  Проголосовать: нравится +25 Проголосовать: не нравится

Hm, it would be nice Challenge problem for CodeChef if solution is not found :)

»
11 лет назад, # |
  Проголосовать: нравится +3 Проголосовать: не нравится

ha, found it! the name of the problem is "min-degree bounded minimum spanning tree" and has been proved to be NP-hard, there are a few papers which have tried to solve it using an operational research approach.