CCF2019-03-Python题解

4
-1 2 1 4
# 4 1.5 -1

4
-2 -1 3 4
# 4 1 -2

 1 n=int(input())
 2 
 3 ans=list(map(int, input().split()))
 4 res=[]
 5 maxx=max(ans)
 6 minn=min(ans)
 7 res.append(maxx)
 8 res.append(minn)
 9 if n%2==0:
10     med=(ans[(n-1)//2]+ans[(n-1)//2+1])
11     if med%2==0:
12         med=med//2
13     else:
14         med=med/2
15         
16 else:
17     med=ans[(n+1)//2-1]
18 
19 res.append(med)
20 res.sort(reverse=True)
21 print(‘ ‘.join(map(str, res)))