逆序输出单个数字

/*如输入12345，输出54321*/
#include"stdio.h"
int main()
{
    int number;
    scanf("%d",&number);
    int sum=0;
    while(number){
        sum=sum*10+number%10;
        number=number/10;
    }
    printf("%d\n",sum);
    return 0;

}