关于C语言程序设计的问题。

代码附上~~

求采纳！

1 #include 
 2
 3 int main(){
 4   printf("请输入不多于5位正整数:");
 5   int n,i;
 6   int count = 0,c[5] = {0};
 7   scanf("%d",&n);
 8   if(n>99999||n<0){
 9     printf("输入错误，程序终止。\n");
10     return -1;
11   }
12   while(n){
13     c[count] = n%10;
14     count++;
15     n /= 10;
16   }
17   printf("这是%d位数\n",count);
18   for(i=count-1;i>=0;i--)
19     printf("%d ",c[i]);
20   printf("\n");
21   return 0;
22 }

#include
int main(int argc, char *argv[])
{ int n,i=0,k=1,m;
printf("输入一个整数：");
scanf("%d",&n);
m=n;
while (m!=0)
{
i++;
k=k*10;
m=m/10;
}
printf("\n%d是个%d位数，其各位数字分别是：",n,i);
m=n;
k=k/10;
while(m!=0)
{
printf("%d ",m/k);
m=m%k;
k=k/10;
}
printf("\n\n");
return 0;
}

#include 
#include 
int main(void)
{
    long t = 0;
    char x[10] = {0};
    char length = 0;
    printf("\nInput integer number(should be less than 100000):\n", t);
    scanf("%ld", &t);
    if (t < 0)
    {
        t = -t;
    }
    t %= 100000;
    while (0 != t)
    {
        x[length] = t % 10;
        ++length;
        t /= 10;
    }
    printf("\nThe length is: %d\n", length);
    printf("\nThe number are:\n");
    if (0 == length)
    {
        printf("%d\n", t);
    }
    else
    {
        do
        {
            printf("%d ", x[length - 1]);
        } while (0 < --length);
    }
    return 0;
}