수다닷컴

질문 제목 : 질문 내용 :
#include stdio.h
#define grams_per_pound 454
main()
{
const next_century=2000;
long weight_in_gram, weight_in_pounds;
int year_of_birth, age_in_2000;
printf(enter your weight_int_pounds: );
scanf(%d, &weight_in_pounds);
printf(enter your year_of_birth: );
scanf(%d, &year_of_birth);
weight_in_gram=weight_in_pounds * grams_per_pound;
age_in_2000=next_century-year_of_birth;
printf(\nyour weight in grams=%ld., weight_in_gram);
printf(\nin 2000 you will be %d years old.\n, age_in_2000);
return 0;
}
이거랑

#include stdio.h
#define grams_per_pound 454
const next_century=2000;
long weight_in_gram, weight_in_pounds;
int year_of_birth, age_in_2000;
main()
{
printf(enter your weight_int_pounds: );
scanf(%d, &weight_in_pounds);
printf(enter your year_of_birth: );
scanf(%d, &year_of_birth);
weight_in_gram=weight_in_pounds * grams_per_pound;
age_in_2000=next_century-year_of_birth;
printf(\nyour weight in grams=%ld., weight_in_gram);
printf(\nin 2000 you will be %d years old.\n, age_in_2000);
return 0;
}이거 2개를보면
const next_century=2000;
long weight_in_gram, weight_in_pounds;
int year_of_birth, age_in_2000;
이 변수선언이 main()함수 안에 있냐 밖에있냐의 차이인데요
2개다 에러없이 실행이 되는데...
변수선언은 main()함수 내에만 선언되는거 아닌가요?? 밖에 해도 되는건가요?

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