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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
sclass Average { double sum; long n; void add(double d) { ++n; sum += d; } double get() { ret doubleRatio(sum, n); } toString { ret get() + " (n=" + n + ")"; } }