#include<stdio.h>
int main() {
int a, b, c, d, e;
printf("请输入一个四位数:");
scanf_s("%d",&a);
b = a /1000;
c = (a - 1000 * b) /100;
d = (a - 1000 * b) % 100 /10;
e = (a - 1000 * b) % 100 % 10;
printf("%d\n",e*1000+d*100+c*10+b);
return 0;
}
#include<stdio.h>
int main() {
int a, b, c, d, e;
printf("请输入一个四位数:");
scanf_s("%d",&a);
b = a /1000;
c = (a - 1000 * b) /100;
d = (a - 1000 * b) % 100 /10;
e = (a - 1000 * b) % 100 % 10;
printf("%d\n",e*1000+d*100+c*10+b);
return 0;
}