蒙地卡羅求 PI 副本 | JavaScript 程式專案

{"id":42207,"student_id":130,"content":"stopRendering();\npen.size = 0;\npen.fillColor = 'white';\npen.drawRect(0, 0, 640, 480);\nvar a = 0; var b = 0;\n\nforever(function() {\n    for (var i = 0; i \u003c 1000; i++) {\n        a++;\n        var s = Math.random()*480;\n        var d = Math.random()*480;\n        pen.fillColor = 'red';\n        var z = Math.sqrt((s - 240)*(s - 240)+(d-240)*(d-240));\n        if (z \u003c 240) {\n            pen.fillColor = 'orange';\n            b++;\n        } else {\n            pen.fillColor = 'red';\n        }        pen.drawRect(s, d, 1, 1);\n\n    }\n    pen.fillColor = 'white';\n    pen.drawRect(0, 0, 200, 40);\n    print(b*4/a);\n});","created_at":"2018-09-15T10:03:29.265+08:00","updated_at":"2019-11-03T04:28:35.792+08:00","name":"蒙地卡羅求 PI 副本","language":"javascript","screenshot":{"url":"https://cdn9.koding.school/uploads/project/screenshot/42207/49e6a0b814894f737a6842c507090d71.jpg"},"parent_id":31606,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":99,"hashid":"p93s3v6g","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}