經典C++程序4

main( )
{
long a,b,c,d,e,x;
scanf("%ld",&x);
a=x/10000;/*分解出萬位*/
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;/*分解出個位*/
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);
}
【程序30】
題目：一個5位數，判斷它是不是回文數。即12321是回文數，個位與萬位相同，十位與千位相同�！　　�
1.程序分析：同29例
2.程序源代碼：
main( )
{
long ge,shi,qian,wan,x;
scanf("%ld",&x);
wan=x/10000;
qian=x%10000/1000;
shi=x%100/10;
ge=x%10;
if (ge==wan&&shi==qian)/*個位等于萬位并且十位等于千位*/
　printf("this number is a huiwen\n");

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