Warning: session_start(): open(/var/lib/php/sessions/sess_hfp10s94tddc8fv900lja5sjs0, O_RDWR) failed: No space left on device (28) in /var/www/tb-usercake/models/config.php on line 51

Warning: session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in /var/www/tb-usercake/models/config.php on line 51
static double pointDistance(Pt a, Pt b) { ret sqrt(sqr(a.x-b.x) + sqr(a.y-b.y)); } static double pointDistance(double x1, double y1, double x2, double y2) { ret sqrt(sqr(x1-x2) + sqr(y1-y2)); }