一、题目描述
二、python实现
n=int(input().strip())
s=input().strip()
nums=s.split(" ")
if nums[0]>=nums[n-1]:
max=nums[0]
min=nums[n-1]
else:
max=nums[n-1]
min=nums[0]
if n%2==1:
mid=nums[(n-1)//2]
else:
mid=(int(nums[n//2])+int(nums[(n//2)-1]))/2
if mid%1==0.0:
mid=int(mid)
else:
mid=format(mid,".1f")
s=max+" "+str(mid)+" "+min
print(s)