#include <stdio.h>
#include <math.h>
#include <string.h>
#include <stdlib.h>

int main()
{
char firstcity[15]; float latitudeoffirst; float longitudeoffirst;
scanf("%s %f %f ",firstcity ,&latitudeoffirst, &longitudeoffirst);

char secondcity[15]; float latitudeofsecond; float longitudeofsecond;
scanf("%s %f %f ",secondcity ,&latitudeofsecond, &longitudeofsecond);

char thirdcity [15]; float latitudeofthird; float longitudeofthird;
scanf("%s %f %f ",thirdcity ,&latitudeofthird, &longitudeofthird);


float distance1= abs(latitudeofsecond-latitudeoffirst)+abs(longitudeofsecond-longitudeoffirst);
scanf ("%f",&distance1);

float distance2=abs(latitudeofthird-latitudeoffirst)+abs(longitudeofthird-longitudeoffirst);
scanf("%f",&distance2);

if (distance1>distance2) printf ("secondcity");


else printf ("thirdcity");





return 0;
}

Well, I've done you the courtesy of making a more nicely formatted version:

What do you want to happen when you run it, and what actually happens when you run it?

the question is this :

You are asked to find Eulidean distance of some cities. You will be given Latitude and Longitude coordinates of a city and then, two other citites. Find the closer city to the first one.
Input specification
You will be given a string (city name) and two floating point numbers (Latitude and Longitude coordinates of each city) in three lines where (W/E) -180 ≤ Longitude ≤ 180 and (S/N) -90 ≤ Latitude ≤ 90. And, city name is not longer than 15 characters and contains only English letters (no special characters).

Output specification
Show the name of the closer city.

When i run it it doesnt open , it just says this :Process terminated with status 1 (0 minute(s), 0 second(s))
0 error(s), 0 warning(s) (0 minute(s), 0 second(s))

So: what exactly is happening that's wrong when you try to run it?

Welcome to LinuxQuestions.

In addition...
It is not urgent for the members who volunteer their time to help you with your homework. You have not provided any information as to what is wrong.

I will say that your equation to find distance is wrong. latitude/longitude is usually given in degrees minutes, seconds or degrees, minutes. Are you converting them correctly into degrees. East is plus and west is minus although with only calculating distance it will not make much difference as long as they are all the same.

" it seems that the project isnt build up yet, do you want to build it now ? " - and when i click yes nothing shows up... and this is written in the part where it shows the errors : Process terminated with status 1 (0 minute(s), 0 second(s))
0 error(s), 0 warning(s) (0 minute(s), 0 second(s))

well you might run into issues with this
" abs(latitudeofthird-latitudeoffirst)"

taking the abs


i am in the Detroit area and depending if one is using "PositiveEast or "PositiveWest"
or if one is using -180 to +180 or 0 to 360

so +83.1 AND -96.9 or E 276.9 Longitude are correct for Detroit


as for notation
BOTH analog and binary are correct
for the center of the telescope mount at the royal observatory
0 deg. 0 min. 0 sec.
and
0.0000000000000

-- yes one CAN be driven to MADNESS !!!!

1 members found this post helpful.

it doesnt matter on the city , the formu la doesnt change , its constant, im sure there's no problem with the formula or number...

What development environment i.e. program are you using to create your code/project?

I guess your just given degrees so ignore conversion...

And yes your equation is wrong.

im using codebloks... yes you just put the numbers for example Albania 5485.6565 46546.65465 and so on... and you use euclidian formula

I don't use code blocks and could not find exactly what status 1 means.

The numbers in your last post are not +/-180 and +/-90...

PS.
Since you do not have any text asking for input you probably can not tell that the program was running. When you closed it out it probably gave you that error.

You also might want to change your
scanf ("%f",&distance1);
to a print statement.

1 members found this post helpful.

I don't use CodeBlocks either, but your code runs fine on the command line. Exit status 1 usually just means a general failure, so it's difficult for anyone to diagnose what went wrong.

Will also have to mention that your calculation is definitely wrong. Example: I live at -179.9999, 0. Friend A live at 179.9999, 0. Friend B lives at 0, 0. I want to visit the friend who lives furthest away from me. Using your formula, Friend A is the furthest away, even though Friend A is probably my next door neighbour.

You need to fix the distance formula and add another calculation step before that (I won't tell you what that is, at least for now).

Hi,

You might rethink your formula. To calculate dinstances in a 2-dimensional space, you would use Pythagoras' formula -> c^2 = a^2 + b^2, where a = abs(x1 - y1) and b = abs(x2 - y2).

For those who worry about the use of longtitude and latitude, the question only has to answer about the distance, not about in which direction you have to travel.

Cheers,

The point cannot be emphasized enough ... that this is very-plainly homework, and that the intention, not only of "homework" but of the school/class in general, is to teach you the skill of figuring out for yourself what is wrong with your program. It teaches you how to translate a plausible set of requirements (which have in this case been liberally salted with clues) into a functioning program.

This is "the thing that we get paid the big bucks to do."

If you plead for those who do know how to do this, to do this for you, then you are depriving yourself of something that other people are giving both of their money and of their time to provide you. I say this in part because I have taught these courses at community colleges myself, and I didn't do it for the pay.

If, on the other hand, you approach us by saying, "hey, this is homework, and I'm really stuck and this is what I've done so-far and this, specifically, is what I don't understand ..." then many of us will certainly help you. They will strive to help you learn, as will your instructor. (You should be approaching him or her first, partly so that s/he can better gauge the level-of-understanding within the class, so as to fine-tune the instructional approach being taken.)

You have been given the clues that you need to resolve your problem. Without asking for any further clarification, now, go and do it. Yourself. "Practice, practice ..." (And, "patience.") No one around here is saying that it's easy.

The fact that it is lat/long means Pythagoras doesn't work. On spheres it's the haversine formula that is used. http://en.wikipedia.org/wiki/Haversine_formula