Warning: session_start(): open(/var/lib/php/sessions/sess_pemhsh8tu464l35bqjknhmtsv7, 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 void calCenter(CirclesAndLines cal) { if (n == 0) ret; double x = 0, y = 0; int n = l(cal.circles); for (Circle c : cal.circles) { x += c.x; y += c.y; } calTranslate(cal, 0.5-x/n, 0.5-y/n); }