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Sorry for the confusion guys.

Please consider all 3 objects as rectangles and each rotation is around its own center of origin.

~ Jenny

Hello Team,

I have to find the final (x,y) co-ordinate of an topmost object after rotation.
I will give you an example here, please check the attached image.

1) Figure-1 : we have 3 objects...

http://www.engr.colostate.edu/~dga/dga/papers/point_in_polygon.pdf
Note that the winding number is not defined when the point X is on the polygon :(

Thanks dwks !

What does the Winding number algorithm returns for a point which is on the boundary of a polygon ? Does that output in sameway as point-in-polygon algorithm ? i.e RANDOM ..sometimes...

ohhh wait, I see a problem here.

Summarize....
So looking at the original problem description. I can implement it in below program flow :
Step1. Check if the input point is one of the vertices...

@ Lesshardtofind, Thanks a ton for the clue :)

So looking at the original problem description. I can implement it in 2 parts.
1. Check if if three points are on the same line by checking if the...

Hello friend.

I want to write a program whether a given point in the plane lies inside, outside, or on the boundary of a polygon. I have found this interesting website which shows 2 ways of doing...

Thanks Sean for your reply.


So you recommend that I should change the below form


char * retrieve ( char *inputstr )
{
.
.

Can you explain in details what you mean here?

Can anyone tell me how to delete/deactivate account permanently?
I cannot find it here.

1) Are there any problems with your code?
>> No , there is no problem in current code but I want to optimize this code in efficient way and want to use malloc and free to avoid any mem leak issue....

I need to return a char pointer from func.
The function takes a string and then always returns a 40 char value as a result of calling "giveout". I want to optimize this code in efficient way and...