What is wrong with this code? [closed]
#include <stdio.h>
#include <stdlib.h>
int main (int argc, char *argv[])
int num;
{
    int (num;

       float convert;
   printf("Int - float - hexn");

   int a = 0x12345678;
   unsigned char *c = (unsigned char*)(&a);
   if (*c == 0x78)
   {
       printf("nbyte order: little-endiann");
   }
   else
   {
       printf("nbyte order: big-endiann");
    }
    printf("n>");
    scanf("%d", &num);
    if (num !=0)
    {
       printf("n%10d  ",num);
       printf("0x%08X",num);

        convert =  (float)num; // converts

         printf("n%10.2f  ", convert);
         printf("%lxn", *(unsigned long *)(&convert));
     }
    else
    {
        printf("n%10d  ",num);
        printf("0x%08X",num);

        convert =  (float)num; // converts

        printf("n%10.2f  ", convert);
        printf("%lxn", *(unsigned long *)(&convert));
        exit(0);
      }

return 0;
}

int main (int argc, char *argv[])
int num;

int main (int argc, char *argv[])
int num;                                       <----- ??? Syntax rror
{
   printf("CS201 - A01 - Sarah Dunlap")
   int (num;                                   <----- ??? Syntax rror

       float convert;

int main (int argc, char *argv[])
int num;  <-- this is in the wrong place. It should go after the {
{

int (num;  <-- you need to remove the (

prog.c: In function ‘main’:
prog.c:5: error: old-style parameter declarations in prototyped function definition
prog.c:7: error: expected ‘;’ before ‘int’
prog.c:36: error: expected declaration or statement at end of input

int main (int argc, char *argv[])
//Remove int num;
{
printf("CS201 - A01 - Sarah Dunlap");  //Add semicolon
int num; //Remove extra parenthesis

prog.c: In function ‘main’:
prog.c:23: warning: dereferencing type-punned pointer will break strict-aliasing rules
prog.c:31: warning: dereferencing type-punned pointer will break strict-aliasing rules
prog.c:16: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result

CS201 - A01 - Sarah DunlapInt - float - hex

byte order: little-endian

>
 134513664  0x08048400
134513664.00  4d004840