足球比赛的分组淘汰制以及比赛过程和比赛结果的运行和现实-Football knockout competition, as well as group games and competitions during the operation and practical results

某公司举行羽毛球大赛，共1001人，采用淘汰制，至少需要多少场比赛？用程序模拟实现。-The company held a badminton competition, a total of 1001 people, using knockout, at least need how many games?Process simulation is used to implement.