INTEST - Enormous Input Test

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The purpose of this problem is to verify whether the method you are using to read input data is sufficiently fast to handle problems branded with the enormous Input/Output warning. You are expected to be able to process at least 2.5MB of input data per second at runtime.

Input

The input begins with two positive integers n k (n, k<=107). The next n lines of input contain one positive integer ti, not greater than 109, each.

Output

Write a single integer to output, denoting how many integers ti are divisible by k.

Example

Input:
7 3
1
51
966369
7
9
999996
11

Output:
4

hide comments
pt97: 2016-07-24 08:56:32

easy with c

square1001: 2016-07-23 16:05:21

0.09 seconds with getchar_unlocked.
Do you have any "more efficient algorithm" ?

ayush: 2016-06-05 21:03:45

Use ios_base::sync_with_stdio(false), solved in 0.5

Bryan Poulsen: 2016-02-26 22:56:10

Fastest I could get with PyPy was 0.93 seconds - tried every variation of standard in that I could think of.

Bryan Poulsen: 2016-02-26 22:24:07

Submitted in python 2.7.10 got TLE, resubmitted same solution in Pypy got AC in 1.02 seconds.

entcat: 2016-02-22 19:19:53

used simple brute force logic in python , submitted in python 2.7.10 got TLE, resubmitted in pypy got accepted . could anyone provide me a reason why that occured

狂徒归来: 2015-11-06 14:22:58

2.9s in RUST

Andres Mauricio Rondon Patiño: 2015-10-11 20:52:58

Scanf/Printf AC in 0.5s

gautams: 2015-08-18 19:06:32

Is there any other tricks other than getchar_unlocked in c??

Abhinandan Agarwal: 2015-07-27 08:22:35

0.11s with getchar_unlocked and .56 with scanf . stream input output functions take time around 5s here.


Added by:adrian
Date:2004-11-09
Time limit:2.112s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:All except: NODEJS PERL6 VB.NET
Resource:Idea put forward by Michael Mendelsohn