把空间镜像延拓一下就行#7134!脑补lv5
[mw_shl_code=c,true]#include <stdio.h>
int main() {
int a, b, m, vx, vy, vz;
double x0, z0, time;
scanf("%d %d %d", &a, &b, &m);
scanf("%d %d %d", &vx, &vy, &vz);
time = - (double) m / vy;
x0 = (double) a / 2 + vx * time;
x0 = x0 > 0 ? x0 : -x0;
z0 = vz * time;
while (x0 >= 2 * a)
x0 -= 2 * a;
while (z0 >= 2 * b)
z0 -= 2 * b;
x0 = x0 > a ? 2 * a - x0 : x0;
z0 = z0 > b ? 2 * b - z0 : z0;
printf("%.10f %.10f\n", x0, z0);
return 0;
}
[/mw_shl_code]