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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 long ratio(long x, long y) { ret y == 0 ? 0 : x/y; } static double ratio(double x, double y) { ret y == 0 ? 0 : x/y; }