AE00  Rectangles
Byteman has a collection of N squares with side 1. How many different rectangles can he form using these squares?
Two rectangles are considered different if none of them can be rotated and moved to obtain the second one. During rectangle construction, Byteman can neither deform the squares nor put any squares upon any other ones.
Input
The first and only line of the standard input contains one integer N (1 <= N <= 10000).
Output
The first and only line of the standard output should contain a single integer equal to the number of different rectangles that Byteman can form using his squares.
Example
For the input data:
6
the correct result is:
8
Task author: Jakub Radoszewski.
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narutohokage_1:
20160811 20:59:42
There is no no absolutely no hidden cases in this problem . It is simple as it seem. For someone having hard time please know that i too had a hard time first but look at pattern it is easy. You can do it .. you are not less than others. You can do it. No recursion or Dynamic Programming required just simple solution. Please don't look at internet for Answers . You won't learn anything .No need for new line at end of solution.


narutohokage_1:
20160811 19:54:38
@sajalkaushik17 Every Square Is A Rectangle. So Correct Output. 

sajalkaushik17:
20160808 16:36:42
output for example is wrong or not?


giriprasad kemburu:
20160804 06:42:22
Only using single loop.Got AC in first go:):):)


alphastar:
20160726 06:41:14
No need of DP, just a simple logic, no special cases nothing


cena_coder:
20160725 15:23:06
don't forget n=1 case otherwise u will get WA i got two :P 

square1001:
20160717 02:26:57
You can solve this problem for O(n^0.5). 

umeeya:
20160612 08:01:28
what is the answer of 10000 

Yogesh Dorbala:
20160605 07:52:14
for those of you missing 10th test case check for n=1 

code0monkey1:
20160604 13:45:40
Hint: unique areas 
Added by:  Race with time 
Date:  20090503 
Time limit:  1s 
Source limit:  50000B 
Memory limit:  1536MB 
Cluster:  Cube (Intel G860) 
Languages:  All except: ERL JSRHINO NODEJS PERL6 VB.NET 
Resource:  Algorithmic Engagements 2009 