// 뻘코드
#include <stdio.h>
int main(void)
{
        int a, b;
        int num[20]={123,234,4,12,456,56,3,3,35,23,43,34,2,3,25,56,67,64,34,9};
        for (a=0;a<19;a++)
        {
                if(num[a]>num[a+1])
                {
                        b=num[a];
                        num[a]=num[a+1];
                        num[a+1]= b;
                }
                
                printf(\"최대값 = %d\\n\",num[19]);
                return 0;
        }
}


// 수정
#include <stdio.h>
int main(void)
{
        int a, b;
        int num[20]={123,234,4,12,456,56,3,3,35,23,43,34,2,3,25,56,67,64,34,9};
        for (a=0;a<19;a++)
        {
                if(num[a]>num[a+1])
                {
                        b=num[a];
                        num[a]=num[a+1];
                        num[a+1]= b;
                }
        }

        printf(\"최대값 = %d\\n\",num[19]);
        return 0;
}