传送门 http://www.lydsy.com/JudgeOnline/problem.php?id=4318 题目大意 题解 constmaxn=100005;varf,l,ll:array[0..maxn]of real;i,j,k:longint;n:longint;a:real;beginreadln(n);for i:=1 to n dobeginreadln(a);l[i