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
souravs_1999: 2020-08-31 16:02:47

1.07 in PY3 and same code in 0.72 in PYPY

EDIT : 0.69 in PYPY

Last edit: 2020-09-03 04:13:33
exr0n: 2020-08-30 21:10:54

0.14 sec with `register` and `getchar_unlocked` :)

udayk454: 2020-08-24 05:53:26

0.3 in Java

abhrajyoti_00: 2020-08-23 08:27:43

0.17 sec in Cpp
0.72 in PYPY
1.07 in PY3

Last edit: 2020-08-23 08:28:28
kartikeysm2001: 2020-05-07 15:45:41

Just optimized my code from 2.04 to 0.48s !
Keep learning new things and applying them in your code!

p4avinash: 2020-04-28 14:32:01

@invisible1997 it also depends on the programming language you are using. Like C,C++ are very close to the machines as compared with Python and Java, programs in C++ and C executes faster than others plus your code also matters what's your time complexity.

p4avinash: 2020-04-28 14:29:42

0.3 seconds in c++

krishp: 2020-04-24 02:35:36

Was able to get performance down to 1.54 secs using mod operator PYTHON3

Last edit: 2020-05-24 22:24:33
krishp: 2020-04-23 22:17:28

2.33 in python using stdin/stdout. Using input() will not pass. Which method is faster than stdin/stdout?

bledy: 2020-03-11 18:23:40

1.04 Python 3


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