蒙地卡羅求 PI 副本 | JavaScript 程式專案

{"id":42189,"student_id":119,"content":"stopRendering();\nvar c = 0;\nvar d = 0;\npen.size = 0;\npen.fillColor = \"white\";\npen.drawRect(0, 0, 640, 480);\npen.fillColor = \"red\";\nforever(function() {\n    for (var i = 0; i \u003c 1000; i++) {\n        var a = Math.random()*480;\n        var b = Math.random()*480;\n        if (Math.sqrt((a-240)*(a-240)+(b-240)*(b-240))\u003c240) {\n            pen.fillColor = \"orange\";\n            c++;\n            d++;\n        }else{pen.fillColor = \"red\";\n            c++;\n        }\n        pen.drawRect(a, b, 1, 1);\n    }\npen.fillColor = \"white\";\npen.drawRect(0, 0, 220, 20);\nprint(\"PI:\"+d*4/c,0,0,\"black\",20);\n});","created_at":"2018-09-15T10:00:30.752+08:00","updated_at":"2019-10-28T07:50:59.400+08:00","name":"蒙地卡羅求 PI 副本","language":"javascript","screenshot":{"url":"https://cdn3.koding.school/uploads/project/screenshot/42189/89edcce60b8890776f43b51e69f48ea4.jpg"},"parent_id":31606,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":68,"hashid":"zpes8epd","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}