C语言程序设计,初级的~设计算法输入一个四位正整数,将它们倒排,例如输入1234,输出4321

#include #include int main(){int oldnum;int newnum=0;int temp;printf("please input number\n");scanf("%d",&oldnum);printf("the old number is %d\n",oldnum);while (oldnum !=0){newnum = newnum*10+oldnum%10;oldnum = oldnum/10;}printf("the change number is %d",newnum);getch();return 0;};