{"id":208090,"student_id":1998,"content":"// 可以修改預設密碼來測試\n// setPassword('password');\n\n// 學生遊戲試玩,開始實作時註解或移除\n//var s = prompt('請輸入 21 個由英文字母大小寫、數字、空白所組成的密碼');\n//var r = password(s);\n//alert(`你輸入的密碼中只有 ${r} 個字是正確的!`);\n\nvar chars = ' abcdefghijklmnopqrstuwvxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'; //密碼可能的字元\nvar pops = []; //存放要猜的密碼\n\nfor (var k = 0; k \u003c 20; k++) {\n var guess = \"\"\n for (var i = 0; i \u003c 13; i++) {\n var rand = Math.floor(Math.random() * 63)\n guess += chars[rand]\n }\n password(guess)\n pops.push(guess)\n}\n// 按下空白按鍵來破解金庫\non('keydown', 'space', nextGeneration);\n\nfunction nextGeneration () {\n\n var arr = []\n\n for (var i = 0; i \u003c 20; i++) {\n arr.push({\n score: password(pops[i]), gene: pops[i]})\n }\n arr.sort(function(a, b) {\n return b.score - a.score\n })\n //console.log(arr)\n var parentA = arr[0].gene\n var parentB = arr[1].gene\n for (var i = 0; i \u003c 20; i++) {\n pops[i] = crossover(parentA, parentB)\n }\n}\n\n// 將兩組密碼進行組合\nfunction crossover (a, b) {\n var child_gene = \"\"\n for (var i = 0; i \u003c 13; i++) {\n if (Math.random() \u003c 0.1) {\n var rand = Math.floor(Math.random()*63)\n child_gene += chars[rand]\n } else {\n if (Math.random() \u003c 0.5){\n child_gene += a[i]\n } else {\n child_gene += b[i]\n }\n }\n}\nreturn child_gene\n}","created_at":"2020-11-28T16:14:46.642+08:00","updated_at":"2020-11-28T17:36:26.974+08:00","name":"遺傳演算法(預設版) 副本","language":"javascript","screenshot":{"url":"https://cdn4.koding.school/uploads/project/screenshot/208090/9bde1eeb07bb2449c5952935364c5411.jpg"},"parent_id":150101,"plugin":"(function () {\n \n setBackdrop('hacker1.jpg', 0, 0, 640, 480);\n\n var logs = [];\n var key = '';\n var gameOver = false;\n\n function password (str) {\n\n var count = 0;\n for (var i = 0; i \u003c key.length; i++) {\n if (key[i] === str[i]) count++;\n }\n \n if (!gameOver) {\n logs.unshift([str, count]);\n }\n \n if (!gameOver \u0026\u0026 str.length == key.length \u0026\u0026 count === key.length) {\n gameOver = true;\n setBackdrop('hacker2.jpg', 0, 0, 640, 480);\n createSound('beep.wav');\n setTimeout(function () {\n setBackdrop('hacker3.jpg', 0, 0, 640, 480);\n createSound('unlock.wav');\n }, 1000);\n }\n \n return count;\n }\n \n function setPassword (str) {\n key = str;\n }\n \n forever(function(){\n for (var i=0; i\u003c14 \u0026\u0026 i\u003clogs.length; i++) {\n print(logs.length - i, 50, 35 + 20*i, '#aaa', 14);\n print(logs[i][1], 100, 35 + 20*i, logs[i] == key ? 'gold' : 'gold', 16);\n print(logs[i][0], 130, 35 + 20*i, logs[i] == key ? 'gold' : 'white', 16);\n }\n });\n \n window.password = password;\n window.setPassword = setPassword;\n\n})();\n\nsetPassword('I love Koding');\n","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":42,"hashid":"zpesjjgwj","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}
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