May I have some help please? [SOLVED]

Question

I am trying to join a site for intermediate programming.

It asks for a solution to a problem.

I do not want a answer.

I would rather know where to find it.

Here is the code:

https://code.sololearn.com/cxw5gcTb1VZv/?ref=app

Answer 1

@Manual Ah, you are missing the fundamental of CodeWars. Main is defined and run as the program (not the code you wrote). You write a function which is called in the main of the program that you don't write. Does this make sense why it says it was already defined?

Answer 2

#include <iostream>
using namespace std;

int multiply(int a, int b)
{
return a * b;
}

int main(){

multiply(7,7);

}

you should only include the return keyword. I have solved this in code wars.

Answer 3

Guys I also wanna join Codewars but when i enter the code its showing this error

-isystem /runner/frameworks/cpp/ error: conflicting types for 'main'
int main(int argc, const char *argv[])
^
note: previous definition is here
int main(){
^
1 error generated.

Answer 4

I was using the microsoft and c++ reference to try to define cout for a while.

Thanks again for the help

Answer 5

#include <iostream>
#include <string>
#include <cstdlib>
using namespace std;

int function(std::string str);

int multiply(int a, int b){

return a * b;
}
int main(){

cout<<multiply(7,8);

return 0;
}

With this error:

-isystem /runner/frameworks/cpp error: conflicting types for 'main'
int main(int argc, const char *argv[])
^
note: previous definition is here
int main(){
^
1 error generated.

Answer 6

Wait you got it?

Answer 7

you have the answer. you have just extended upon it too much

Answer 8

haha I got it.

@Jay @J.G @Mr.Robot

Thanks

I did as J.G said and only included the function.

I understand now.

Answer 9

One more thing when I used "main(){}"

I get an error saying "main(){}" was previously defined

Answer 10

yeah. trying too hard

Answer 11

just complete the function. thats all

Answer 12

yep

Answer 13

dont worry about main. its assumed it works fine. only the multiply function is broken and that is all you need to fix

Answer 14

yeah. it wasnt worded great (says me with my great english display)

Answer 15

lol... indeed there is a problem with that code. i would be looking at the placement of the functions if I were you (as a start)

Answer 16

mmhmm save what you've done so far as I can only see the multiply function inside main version

Answer 17

I have tried to find out how to get cout from ostream.

I was not able to do it.

I tried

std::cout<<

That failed as well.

Answer 18

it is still missing something

Answer 19

return 0 maybe

Answer 20

u need another return inside main. it returns a value to the os. what you have in codeplayground is exactly what u have typed in codewars?