How can I remove the following error?

[PK Dey]

How can I remove the following error?

  #include <iostream>

using namespace std;
int reverse(int n)
{
    int x, y, i, k;
    while(x)
    {
        if(n>0||n<0)
        {
          x=n%10;n=n/10;
          y=i*10+x;
          i++;
        }
    }
    return y;
}
int main()
{
    int n;
    cin>>n;
    cout<< reverse();
    return 0;
}

Error:

main.cpp:30:20: error: too few arguments to function ‘int reverse(int)’
   30 |     cout<< reverse();
      |                    ^
main.cpp:12:5: note: declared here
   12 | int reverse(int n)
      |     ^~~~~~~

[zapshe]

reverse(n) ?

The function expects to be given an integer, give it one.

[seeplus]

Surely L9 is just

if (n)

[lastchance]

    int x, y, i, k;
    while(x)

What's x?



Come to think of it,

    int x, y, i, k;
...
          y=i*10+x;

What's i? And why do you need k?

[PK Dey]

Thanks To all of you