C,C++
#include <stdio.h>int main(){int x;scanf(\"%d\", &x);
int a[x];}
안됨.------------------------------------
GOD JAVA
import java.util.*;
class Main {public static void main(String args[]){int x;Scanner s = new Scanner(System.in);
x = s.nextInt();
int[] a = new int[x];}}
잘됨.-------------------------------------