1A2B 解題副本 | JavaScript 程式專案

{"id":63149,"student_id":1587,"content":"// 預設程式\n// noprotect // 此行必須寫\nwhen(\"click\", function () {\n    guess(prompt());\n});\n\nvar list = []; //所有可能的字串(不重複)\n\nfor (var i = 123; i \u003c= 9876; i++) {\n    n = i.toString(); //n 為字串、i 為數字\n    if (n.length \u003c 4) {\n        n = \"0\" + n;\n    }\n    if (n[0] != n[1] \n    \u0026\u0026 n[1] != n[2] \n    \u0026\u0026 n[2] != n[3] \n    \u0026\u0026 n[0] != n[2] \n    \u0026\u0026 n[1] != n[3] \n    \u0026\u0026 n[0] != n[3]) {\n        list.push(n);\n    }\n}\n// console.log(list);\n\n\n// whlie loop 的 () 內是\"執行條件\"\n\nwhile(list.length \u003e=0){\n    var g = list[0];\n    var result = guess(g);\n    // console.log(\"result:  \"+result);\n    console.log(\"g:  \"+g);\n    \n    if (result.a == 4) break ;\n    for (var i = 0; i \u003c list.length; i++) {\n        var df = diff(g,list[i]);\n        if (df.a != result.a || df.b != result.b) {\n            list.splice(i,1);\n        }\n    }\n    console.log(list);\n    \n    \n}\n\n\n    // 判斷兩組相似，返回 a、b\nfunction diff(num1, num2) {\n    var a = 0;\n    var b = 0;\n\n    for (var i = 0; i \u003c 4; i++) {\n        var idx = num1.indexOf(num2[i]);\n        if (idx == i) {\n            a++;\n        } else if (idx != -1) {\n            b++;\n        }\n    }\n\n    return {\n        a: a, b: b\n    };\n\n    //測試:在主控台輸入  diff(\"某數\", \"某數\")\n    //  diff(\"\", \"\")\n}","created_at":"2019-04-20T10:47:17.899+08:00","updated_at":"2019-11-10T15:41:15.999+08:00","name":"1A2B 解題 副本","language":"javascript","screenshot":{"url":"https://cdn5.koding.school/uploads/project/screenshot/63149/42b896c0d53feab1f619a7278b32de4c.jpg"},"parent_id":33939,"plugin":"setBackdrop('black');\n\nvar guess = (function () {\n\n    var answer = ''; // 正確答案\n    var logs = []; // 記錄玩家所猜的數字與結果\n\n    // 產生答案\n    var numbers = '0123456789';\n    for (var i = 0; i \u003c 4; i++) {\n        var rand = Math.floor(numbers.length * Math.random());\n        answer += numbers[rand];\n        numbers = numbers.slice(0, rand) + numbers.slice(rand + 1);\n    }\n\n    function guess(num) {\n        var a = 0;\n        var b = 0;\n        for (var i = 0; i \u003c 4; i++) {\n            var idx = answer.indexOf(num[i]);\n            if (idx != -1) i == idx ? a++ : b++;\n        }\n        logs.unshift({num: num, a: a, b: b});\n        return { a: a, b: b }\n    }\n\n    forever(function(){\n        for (var i=0; i\u003clogs.length \u0026\u0026 i\u003c100; i++) {\n            var l = logs[i];\n            var s = `${logs.length - i}. ${l.num}  ${l.a}A${l.b}B`;\n            // 補上對齊用的空格\n            while(s.length \u003c 15) s = ' ' + s;\n            print(s, 30, 20 + 30*i, l.a == 4 ? 'gold' : 'white', 25, 'monospace');\n        }\n    });\n\n    return guess;\n\n})();","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":109,"hashid":"2pds3npr","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}