Online JudgeProblem SetAuthorsOnline ContestsUser
Web Board
Home Page
F.A.Qs
Statistical Charts
Problems
Submit Problem
Online Status
Prob.ID:
Register
Update your info
Authors ranklist
Current Contest
Past Contests
Scheduled Contests
Award Contest
User ID:
Password:
  Register
Language:
Standard Point System
Time Limit: 6000MSMemory Limit: 65536K
Total Submissions: 761Accepted: 202

Description

Guangdong Province uses “standard point” to evaluate their students in the National Matriculation Examination. The calculating method is as follows: For example, after all the papers of a certain subject are marked, every students got a initial point which is an integer range from 0 to 150. The Examination Center of Guangdong Province sorts all the points from high to low. By computing the percentage of students whose point is lower than this student, the student’s standard point can be calculated. The completely computing process is as below:

Firstly, define a function as below:
\Phi(x)=\int\limits_{-\infty}^x\frac{1}{\sqrt{2\pi}}e^{-\frac{t^2}{2}}dt=\left\{\begin{array}{lc}0.5+\int\limits_0^x\frac{1}{\sqrt{2\pi}}e^{-\frac{t^2}{2}}dt&x\ge0\\ 0.5-\int\limits_0^{-x}\frac{1}{\sqrt{2\pi}}e^{-\frac{t^2}{2}}dt&x<0\end{array}\right.

Secondly, For a give student, assuming that the percentage of students whose point is lower than this student is x (0 <= x < 1), we can get the standard point sp(x) as below:
sp'(x)=500+100\Phi^{-1}(x)
sp(x)=\left\{\begin{array}{lr}100&sp'(x)\le100\\ \lfloor sp'(x)\rfloor&100<sp'(x)\le501\\ \lceil sp'(x)\rceil&501<sp'(x)\le900\\ 900&sp'(x)>900\end{array}\right.

Following the above steps, every percentage can be link to a certain standard point.

As one of the best programmer nowadays, you are invited to write a program to transform the initial points to standard points.

Input

The input contains multiply test cases. The first line in each case is an integer N (1 <= N <= 1000000), representing the number of student. Then come N lines, each contains a student’s point (The point is an integer within the range [0, 150]). The next line is an integer M (1 <= M <= 200), representing the number of queries (These numbers are all from the last N lines). Then come M line, each contains an initial point (also in the range [0, 150]).

There may be blank lines between cases. And N = 0 represent the end of input.

Output

For each query in a case, output the standard point corresponding to the given initial point. You should print a blank line between cases.

Sample Input

1
150
1
150

2
135
98
2
135
98
0

Sample Output

100

500
100

Hint

For a given function F(x), if we want to compute A (as show in (1)), we can select a position integer n, and then compute B (using the formulas given in (2) and (3)). It is known that if n is very large, the difference between A and B will be very small.
\begin{array}{lc}A=\int\limits_a^bF(t)dt&(1)\\ \Delta=(b-a)/n&(2)\\ B=\sum\limits_{i=1}^n(F(a+\Delta*(i-1))+F(a+\Delta*i))*\frac{\Delta}{2}&(3)\end{array}


Huge input,scanf is recommended.

Source

[Submit]   [Go Back]   [Status]   [Discuss]

Home Page   Go Back  To top


All Rights Reserved 2003-2013 Ying Fuchen,Xu Pengcheng,Xie Di
Any problem, Please Contact Administrator