There are 50 members in the small military band. Because the performance time is ahead of time, it needs to gather temporarily. It will take at least a few minutes for the teacher to notify everyone. (assuming it takes 1 minute to make a call)
小军乐队有50人，因为演出时间提前，需临时集合，老师至少花多少分钟就通知到每个人．(假设打一个电话需1分钟)
<result>6</result>