摘要:
DescriptionYou are to write a program that tries to find an optimal coloring for a given graph. Colors are applied to the nodes of the graph and the o... 阅读全文
摘要:
DescriptionIn 1976 the ``Four Color Map Theorem" was proven with the assistance of a computer. This theorem states that every map can be colored using... 阅读全文
摘要:
DescriptionA thief is running away!We can consider the city where he locates as an undirected graph in which nodes stand for crosses and edges stand f... 阅读全文