c - What is wrong with sizeof program -

i have made program display number of bytes required store values of type int , type char using sizeof operator. however, not compile, says 'id returned 1 exit status'. how fix this?

here code:

#include <stdio.h>  main() {     int num, num1;      num = sizeof(int);     num1 = sizeof(char);     printf("bytes required int:  %d   bytes required char: %d\n", num, num1);     getchar(); } 

thank you

the code correct, perhaps can try copy code , paste on new file, , delete old one. hope works :)