Submission #3599650

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Source Code Expand

N=int(input())
t_List=[int(i) for i in input().split()]
t_Table=[0]
for i in range(N):
  t_Table.append(t_Table[i]+t_List[i])
v_List=[int(i) for i in input().split()]
v_List.append(0)
Class=0
t=0
v=0
L=0
check=0
while t<=t_Table[-1]:
  for i in range(Class+1,N+1):
    if t_Table[i]!=t:
      if (v_List[i]-v)/(t_Table[i]-t)==-1:
        L+=v/2-1/8
        v+=-0.5
        check=-1
        break
  if check!=-1: 
    if v==v_List[Class]:
      L+=v/2
    else:
      L+=v/2+1/8
      v+=0.5
  t+=0.5
  if t_Table[Class+1]==t and Class<=N-2:
    Class+=1
    check=0
print(L)

Submission Info

Judge Result