이게 왜안되는지 좀 알려주세요

#includestdio.h
#includestring.h
#includestdlib.h
#define MAIN_SIZE 50
struct application
{
char main[16];
char url[5];
};
typedef struct application;
int intro(void)
{
int cmd = 0;
printf(--------------------------------------------\n);
printf(\t\t하핳 v1.0\t\n);
printf(--------------------------------------------\n);
printf(-메뉴입력\n);
printf(1.제목&url입력\n);
printf(2.출력\n);
printf(3.저장\n);
printf(프로그램 종료\n);
printf(--------------------------------------------);
printf(-메뉴를 입력하세요:);
scanf(%d, &cmd);
return cmd;
}