这样写为什么不对呀,有大佬能解答一下吗
#include <stdio.h>
int main()
{
int x,y;
x = 10;
y = -3;
x + y = a;
x - y = b;
x * y = c;
x / y = d;
x % y = e;
printf("x+y=%d\n", a);
printf("x-y=%d\n", b);
printf("x*y=%d\n", c);
printf("x/y=%d\n", d);
printf("x%y=%d\n", e);
return 0;
}