编写求解y=x-3，并输出y结果的程序，分别计算自变量x的3个值（x=6:x=1848:x=-1）对应的y值。

以下是程序：

#include <stdio.h>

int main() {
int x1 = 6, x2 = 1848, x3 = -1;
int y1 = x1 - 3, y2 = x2 - 3, y3 = x3 - 3;
printf("x=%d, y=%d\n", x1, y1);
printf("x=%d, y=%d\n", x2, y2);
printf("x=%d, y=%d\n", x3, y3);
return ;
}

输出结果为：

x=6, y=3
x=1848, y=1845
x=-1, y=-4