基于visual studio .net2003的VB开发的数独游戏，数独游戏最初是根据欧拉的理论出现的，目前风靡欧美。-based on visual studio. Net2003 in the VB sudoku games, the first few games alone is Euler's theory appears that swept Europe and the United States.

判断有n个节点的图是否存在一笔画路径，并找出一笔画路径-failed to translate