Thread: Help me!

I really need some help.
First of all, I am new to C++ and I think it's great but
for all the complier errors I get I deserve to die.
So first of all, I want to know of a good compiler
that is very simple and it will show me what line the
error is and perhaps tell me what kind of error it is.

Second of all, I want to know if this has any errors.
It's supposed to be calculator program. I made it myself.

Code:

#include <iostream.h>

int main()

int mult(int x, int y);

int divi(int x, int y);

int add(int x, int y);

int sub(int x, int y);

int muvi(int x, int y, int z);

int ch;

{
   
   cout<<"Press 1 for multiplication, 2 for division, 3 for addition, 4 for subtraction,5 to multiply then divide: ";

   cin>>ch;

   if(ch==1)

   {   
      
      int x, y;
      
      cout<<"Please input 2 numbers to be multiplied!: ";
      
      cin>>x>>y;

      cout<<"Your answer is...drumroll please..."<<mult(x, y)
   
      return 0;
   
   }

   int mult(int x, int y);
   
   {
   
      return x*y;
   
   }
   
   else if(ch==2)
   
   {
   
      int x, y;
   
      cout<<"Please input 2 numbers to be divided!: ";
   
      cin>>x>>y;

      cout<<"Cutting up your numbers....answer.."<<divi(x, y);
   
      return 0;
   
   }
   
   int divi(int x, int y);
   
   {   
   
      return x/y;
   
   }

   else if(ch==3)

   {
   
      int x, y;
   
      cout<<"Please input 2 numbers to be added!: ";  
   
      cin>>x>>y;

      cout<<"Squishing them together..."<<add(x, y);
   
      return 0;
   }

   int add(int x, int y);

   {

      return x+y;

   }

   else if(ch==4)

   {

      int x, y;

      cout<<"Please input 2 numbers to be subtracted!: ";

      cin>>x>>y;

      cout<<"Your answer is"<<sub(x, y);

      return 0;

   }

      int sub(int x, int y);

   {

      return x-y;

   }

   else if(ch>=5)

   {
   
      int x, y, z;
      
      cout<<"Please input a number, then a number to multiply it by, then 1 more to be divided by: ";
      
      cin>>x>>y>>z;

      cout<<"Your answer is"<<muvi(x, y, z);
   
      return 0:;
     
   }

      int muvi(int x, int y, int z);

   {

      return x*y/z;

   }

Thanks in advance!
By the way, these forums are really convienent!

This was done with the help of the C++ Tutorials 1-4.