<swustoj>?id=318 进制变换

#include <stdio.h>
int arr[33];
int main()
{
    int x;
    int i,j;
    while(scanf("%d",&x)!=EOF)
    {
        int y;
        y=x;
        i=j=0;
        if(x==0)
        {
            printf("0\n0\n");
        }
        else
        {
            while(x!=0)
            {
                arr[i]=x%2;
                x=x/2;
                i++;
            }
            for(i=i-1;i>=0;i--)
            {
                printf("%d",arr[i]);
            }
            printf("\n");
            while(y!=0)
            {
                arr[j]=y%8;
                y=y/8;
                j++;
            }
            for(j=j-1;j>=0;j--)
            {
                printf("%d",arr[j]);
            }
            printf("\n");
        }
    }
    return 0;
}

#include <stdio.h>
int arr[33];
int main()
{
    int x;
    int i,j;
    while(scanf("%d",&x)!=EOF)
    {
        int y;
        y=x;
        i=j=0;
        if(x==0)
        {
            printf("0\n0\n");
        }
        else
        {
            while(x!=0)
            {
                arr[i]=x%2;
                x=x/2;
                i++;
            }
            for(i=i-1;i>=0;i--)
            {
                printf("%d",arr[i]);
            }
            printf("\n");
            printf("%o\n",y);
        }
    }
    return 0;
}