L=eval(input()) N=eval(input()) position=input() position=list(position.split(' ')) i=0 max_time=0 min_time=0 print(position) while i<len(position): position[i]=eval(position[i]) if position[i]<=L//2: if (L-position[i]+1)>max_time: max_time=L-position[i]+1 if position[i]>min_time: min_time=position[i] else: if position[i]>max_time: max_time=position[i] if (L-position[i]+1)>min_time: min_time=L-position[i]+1 i+=1 print(min_time,max_time) 估计代码思路不是很好