dhtml118:
It can come back to life, if we want it back to life. This is the first really interesting topic in a long while.

I move the motion that we bring this board to life - what do you say guys?

told you you wouldn't last long without nairaland!

TheOtherGeek:
Things are looking nice, seeing fellow devs talkin real stuff is awesome..


Hey, @queryunical what's up?

Any luck?

No, not yet. Just wondered, if u can afford d time to help craft out an algorithm.

DanielTheGeek:
But before then, I have a simple question.. I don't need to see code; just logical reasoning..
(Taken from an interview of a company I worked for)

In a co-ordinate plane, a line segment is drawn from the origin to a point A(x,y). With great efficiency, find the number of cells the line passes through Assuming X and Y are ints...

Google may not be of too much help, this is largely theoretical.

Mod: let's have more of this kind of questions as the ones involving code can easily be Googled or outsourced.. This tests the fundamental knowledge of computer science.. Programming is more of thinking than coding

step distance can be derived by
.
x' = x2 - (x1 + ni)
y' = y2 - (y1 + nj)
.
where ni and nj are loop controls for ni < x2 and nj < y2 respectively.
{(x', y')} should be a proper set of all steps from (x, y) to A(x,y) or (x2, y2)

Good Lord, a lot of comments to read through...
DanielTheGeek

Olyboy16:

told you you wouldn't last long without nairaland!

you know nothing my friend, your stmt is very foolish.

dhtml118:
you know nothing my friend, your stmt is very foolish.

what does your bible tell you about calling someone foolish?

@olyboy16,
Call a thing by its proper name, you enter a thread and see people contributing meaningfully, why not follow suit? Rather you try looking for trouble, and this is why I said you are foolish (if i say otherwise, then I will be lying).

@seunthomas, please send this boy out of your thread (he is a detractor and needs jail sentence)

dhtml118:
If you cannot contribute to this thread, just gerrout of it already (you are what the oyinbo people call a pain in the neck)

i did contribute my little best a few posts away, but then i couldn't but notice you have fallen out of par with your malice with nairaland.

was just pulling your leg boss, have a great day sire.
EDIT: BTW just because you are offended doesn't give everyone your deliquent opinion!(you were once a black sheep remmba?)
if your skin is too soft for facts and i've actually pierced it with mine, then my apology(though unreserved) is on podium. Sorry Sir!

EDIT(after the post below me): (^_^) , @dhtml118 "love your neighbour as yourself" and "do not let the sun set on your anger"

Do not joke about such a sensitive matter again, it is not a play play matter that I am still going to discipline Seun. I am still oiling his cane to be honest.

bearnana:
Good Lord, a lot of comments to read through...
DanielTheGeek

It's a good thing majority of the comments are constructive and useful... Lol

I'm still trying to come up with a solution for that girl that quoted me

You should ff back on Github, BTW, are you somehow affiliated with bearnana?

@danielthegeek

Hahahaha...let's agree your .ass got partially whooped

Okay, try another language...

QueryUnical:


No, not yet. Just wondered, if u can afford d time to help craft out an algorithm.

Throw it at me already man... All the guys doing all the tough stuff at work, lemme take this

Okay, I actually almost cut my fingers coding a solution in Java... lol

I have little practical knowledge of Rust, so I was able to easily cook up a solution in C++ (C++14)

So, here's my implementation in C++14

I tested it and it works as expected, returning Yes through stdout based on the given parameters..
The solution has an exponential time complexity and aux space used is 0(1)

I did a Mandelbrot program in Rust, nothing close to a pixel manipulator but something cool

use std::io::Write;
fn main() {
    let args: Vec<String> = std::env::args().collect( ) ;
    if args.len() != 5 {
        writeln!(std::io::stderr(),
                 "Usage: mandelbrot FILE PIXELS UPPERLEFT LOWERRIGHT " )
            .unwrap();
        writeln!(std::io::stderr(),
                 "Example: {} mandel.png 1000x750 -1.20,0.35 -1,0.20 ",
                 args[0])
            .unwrap( ) ;
        std::process::exit(1 ) ;
    }
    let bounds = parse_pair(&args[2], 'x')
        .expect("error parsing image dimensions" ) ;
    let upper_left = parse_pair(&args[3], ',')
        .expect("error parsing upper left corner point" ) ;
    let lower_right = parse_pair(&args[4], ',')
        .expect("error parsing lower right corner point" );
    let mut pixels = vec![0; bounds.0 * bounds.1] ;
    render(&mut pixels[..], bounds, upper_left, lower_right) ;
    write_bitmap(&args[1], &pixels[..], bounds)
        .expect("error writing PNG file" ) ;
}

4kings:

Rename KNMIS.mdf file, cos you've used it with a previous project or put it in a different folder.

Thank you very much sir.
i appreciate, how do i go about putting it in a new folder

USE [master]
GO

/****** Object: Database [KNMIS] Script Date: 09/03/2016 06:00:23 ******/
CREATE DATABASE [KNMIS] ON PRIMARY 
( NAME = N'KNMIS', FILENAME = N'c:\Program Files\Microsoft SQL Server\MSSQL10_50.SQLEXPRESS\MSSQL\DATA\KNMIS.mdf' , SIZE = 2048KB , MAXSIZE = UNLIMITED, FILEGROWTH = 1024KB )
LOG ON 
( NAME = N'KNMIS_log', FILENAME = N'c:\Program Files\Microsoft SQL Server\MSSQL10_50.SQLEXPRESS\MSSQL\DATA\KNMIS_log.ldf' , SIZE = 1024KB , MAXSIZE = 2048GB , FILEGROWTH = 10%)
GO

thank you sir

olulove:


Thank you very much sir.
i appreciate, how do i go about putting it in a new folder

USE [master]
GO

/****** Object: Database [KNMIS] Script Date: 09/03/2016 06:00:23 ******/
CREATE DATABASE [KNMIS] ON PRIMARY 
( NAME = N'KNMIS', FILENAME = N'c:\Program Files\Microsoft SQL Server\MSSQL10_50.SQLEXPRESS\MSSQL\DATA\KNMIS.mdf' , SIZE = 2048KB , MAXSIZE = UNLIMITED, FILEGROWTH = 1024KB )
LOG ON 
( NAME = N'KNMIS_log', FILENAME = N'c:\Program Files\Microsoft SQL Server\MSSQL10_50.SQLEXPRESS\MSSQL\DATA\KNMIS_log.ldf' , SIZE = 1024KB , MAXSIZE = 2048GB , FILEGROWTH = 10%)
GO

thank you sir

Wait first, didn't you write this code yourself?
May i ask what you think the parameter FILENAME does?

---

Don't call me Sir

DanielTheGeek:
I did a Mandelbrot program in Rust, nothing close to a pixel manipulator but something cool

what's parse_pair ?

4kings:

Wait first, didn't you write this code yourself?
May i ask what you think the parameter FILENAME does?

---

Don't call me Sir

yes pls.

a friend wrote and sent to me has a project, while trying to execute on SSMS i encountered that error msg 1801, level16

thank you

dhtml118:
Do not joke about such a sensitive matter again, it is not a play play matter that I am still going to discipline Seun. I am still oiling his cane to be honest.

Goodluck with that champ!

---

BTW in a discrete matter, there so many googled answers here!

Olyboy16:

Goodluck with that champ!

---

BTW in a discrete matter, there so many googled answers here!

Hmn, I cannot help but notice too. . . .I am somewhere else off nairaland battling someone over advantages of xml over json (i am for json, while the other unfortunate dude is for xml - we are still at draws, no winner yet)

dhtml118:

Hmn, I cannot help but notice too. . . .I am somewhere else off nairaland battling someone over advantages of xml over json (i am for json, while the other unfortunate dude is for xml - we are still at draws, no winner yet)

In most use cases json is much better as its more compact. I will always pick json over xml where i have a choice...

DanielTheGeek:
I did a Mandelbrot program in Rust, nothing close to a pixel manipulator but something cool

use std::io::Write;
fn main() {
    let args: Vec<String> = std::env::args().collect( ) ;
    if args.len() != 5 {
        writeln!(std::io::stderr(),
                 "Usage: mandelbrot FILE PIXELS UPPERLEFT LOWERRIGHT " )
            .unwrap();
        writeln!(std::io::stderr(),
                 "Example: {} mandel.png 1000x750 -1.20,0.35 -1,0.20 ",
                 args[0])
            .unwrap( ) ;
        std::process::exit(1 ) ;
    }
    let bounds = parse_pair(&args[2], 'x')
        .expect("error parsing image dimensions" ) ;
    let upper_left = parse_pair(&args[3], ',')
        .expect("error parsing upper left corner point" ) ;
    let lower_right = parse_pair(&args[4], ',')
        .expect("error parsing lower right corner point" );
    let mut pixels = vec![0; bounds.0 * bounds.1] ;
    render(&mut pixels[..], bounds, upper_left, lower_right) ;
    write_bitmap(&args[1], &pixels[..], bounds)
        .expect("error writing PNG file" ) ;
}

Why do i suspect this guys code?? You thief this code online abi?? See person wey wan challenge me wey dey thief code online.
Programmer wey dey thief code online dat one na real programmer...
Mtchewwwww Ole buruku....
Plagiarism King.....

TheOtherGeek:


Throw it at me already man... All the guys doing all the tough stuff at work, lemme take this

I'm not sure but i tnk it might take several days to come up with detailed instructions.As soon as i do i will let u know.

dhtml118:

Hmn, I cannot help but notice too. . . .I am somewhere else off nairaland battling someone over advantages of xml over json (i am for json, while the other unfortunate dude is for xml - we are still at draws, no winner yet)

json against xml? there'd be no winner if the other guy knows his tuff well. infact, aside being lightweight, js compatible, favoured by startups and easy data recovery; a good xml fanatic may seriously floor you.

Olyboy16:


step distance can be derived by
.
x' = x2 - (x1 + ni)
y' = y2 - (y1 + nj)
.
where ni and nj are loop controls for ni < x2 and nj < y2 respectively.
{(x', y')} should be a proper set of all steps from (x, y) to A(x,y) or (x2, y2)

Hmmn

seunthomas:

Why do i suspect this guys code?? You thief this code online abi?? See person wey wan challenge me wey dey thief code online.
Programmer wey dey thief code online dat one na real programmer...
Mtchewwwww Ole buruku....
Plagiarism King.....

thought as much, that guy probably knows phew about imaging! i can smell it from behind my new iphone X2.

It was a constructive argument (xml vs json), I can see the other dude too is quite vast. We declared draw in the end.
We both agreed that both have their uses, and cannot entirely replace each other all the time. But when it comes to database engine, and compression - json is best.

WhiZTiM:


With the assumptions that the cells are square and each corner is a coordinate (x,y)...

Then I think the cells cut through by a line is

cells = max(abs(x), abs(y))

your x and y are what sir? please add more logic to your assertion

Olyboy16:

your x and y are what sir? please add more logic to your assertion

Nevermind...

dhtml118:
It was a constructive argument (xml vs json), I can see the other dude too is quite vast. We declared draw in the end.
We both agreed that both have their uses, and cannot entirely replace each other all the time. But when it comes to database engine, and compression - json is best.

thought as much, xml happens to be very vast, comparing xml against json is like comparing python and java.

WhiZTiM:

Nevermind...

**checked my post again to make sure i didnt type nonsense sir**

olulove:

yes pls.

a friend wrote and sent to me has a project, while trying to execute on SSMS i encountered that error msg 1801, level16

thank you

create a folder and let the FILENAME be something like:
N'C:\Users\Documents\name_of_folder'
Do same for both .mdf and .ldf file.