(graph concept) A vertex inside of a directed graph which might reach every single other vertex by means of a route that has a length of at most two. Sultan Muhammad V attended the 222nd Assembly on the Convention of Rulers for The 1st time as a full member in https://griffinouzei.buyoutblog.com/31930599/how-much-you-need-to-expect-you-ll-pay-for-a-good-sultan66-king