void Move(int x_offset, int y_offset) //将圆心坐标平移
{
int x1=Getx( ); //存取基类的私有成员
int y1=Gety( ); // D
x1 += x_offset; y1 += y_offset;
Setxy(x1, y1); // E
}
void work(int d){
int i,j,x;
double k=(double)(Y1-Y2)/(X1-X2),b=Y1-k*X1,y,ty=Y1;
g=gcd(abs(X1-X2),abs(Y1-Y2));
L=abs(X1-X2)/g;
for (x=X1;x!=X2;x+=d){
y=k*(x+d)+b;
j= Y1>Y2 ? Gety(ty,x,-1)-floor(y+1e-8)+1 : Gety(y,x+d,1)-floor(ty+1e-8)+1;
if (j>=n){
int x0= d>0 ? x : x-1,y0= Y1>Y2 ? Gety(ty,x,-1) : floor(ty+1e-8);
for (;n>1;n--) y0+= Y1>Y2 ? -1 : 1;
printf("%d %d\n",x0,y0);
return;
}
n-=j;
ty=y;
}
printf("no solution\n");
}
