输入用例：
1
输出用例：
位数:1
每位数字为:1
反序数字为:1
输入用例：
12
输出用例：
位数:2
每位数字为:1,2
反序数字为:21
#include "stdio.h"
#include "math.h"
int main()
{
int num,indiv,ten,hundred,thousand,ten_thousand,place;
scanf("%d",&num);
if (num>9999)
place=5;
else if (num>999)
place=4;
else if (num>99)
place=3;
else if (num>9)
place=2;
else
place=1;
printf("位数:%d\n",place);
printf("每位数字为:");
ten_thousand=num/10000;
thousand=(int)(num-ten_thousand*10000)/1000;
hundred=(int)(num-ten_thousand*10000-thousand*1000)/100;
ten=(int)(num-ten_thousand*10000-thousand*1000-hundred*100)/10;
indiv=(int)(num-ten_thousand*10000-thousand*1000-hundred*100-ten*10);
switch(place) {
case 5:
printf("%d,%d,%d,%d,%d",ten_thousand,thousand,hundred,ten,indiv);
printf("\n反序数字为:");
printf("%d%d%d%d%d\n",indiv,ten,hundred,thousand,ten_thousand);
break;
case 4:
printf("%d,%d,%d,%d",thousand,hundred,ten,indiv);
printf("\n反序数字为:");
printf("%d%d%d%d\n",indiv,ten,hundred,thousand);
break;
case 3:
printf("%d,%d,%d",hundred,ten,indiv);
printf("\n反序数字为:");
printf("%d%d%d\n",indiv,ten,hundred);
break;
case 2:
printf("%d,%d",ten,indiv);
printf("\n反序数字为:");
printf("%d%d\n",indiv,ten);
break;
case 1:
printf("%d",indiv);
printf("\n反序数字为:");
printf("%d\n",indiv);
break;
}
return 0;
}
