C语言趣味小题目

题目：给一个不多于5位的正整数，要求：一、求它是几位数，二、逆序打印出各位数字。

1. 程序分析：学会分解出每一位数

2.程序源代码：

#include <stdio.h>

#include <conio.h>

main( )

{

long a,b,c,d,e,x;

scanf("%ld",&x);

a=x/10000;/*分解出万位*/

b=x%10000/1000;/*分解出千位*/

c=x%1000/100;/*分解出百位*/

d=x%100/10;/*分解出十位*/

e=x%10;/*分解出个位*/

if (a!=0) printf("there are 5, %ld %ld %ld %ld %ld\n",e,d,c,b,a);

else if (b!=0) printf("there are 4, %ld %ld %ld %ld\n",e,d,c,b);

else if (c!=0) printf(" there are 3,%ld %ld %ld\n",e,d,c);

else if (d!=0) printf("there are 2, %ld %ld\n",e,d);

else if (e!=0) printf(" there are 1,%ld\n",e);

getch();

}

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