1A2B 解題副本 | JavaScript 程式專案

{"id":47703,"student_id":227,"content":"when(\"click\", function () {\n    guess(prompt());\n});\nvar list = []\nfor(var i = 123;i\u003c=9876;i++){\n    var t = i.toString()\n    if(t.length == 3){\n        t = '0' + t\n    }\n    if(t[0]!=t[1]\u0026\u0026t[0]!=t[2]\u0026\u0026t[0]!=t[3]\u0026\u0026t[1]!=t[2]\u0026\u0026t[1]!=t[3]\u0026\u0026t[2]!=t[3]){\n        list.push(t)\n    }\n}\nwhile(list.length \u003e 0){\n    var num = list[0]\n    var re = guess(list[0])\n    if(re.a == 4){\n        break\n    }\n    for(var i=0;i\u003clist.length;i++){\n        var r = diff(num,list[i])\n        if (r.a != re.a || r.b != re.b){\n            list.splice(i,1)\n        }\n    }\n}\n\nconsole.log(diff('0123','0124'))\nfunction diff(num1, num2) {\n    var a = 0\n    var b = 0\n    for(var i=0;i\u003c4;i++){\n        var idx = num1.indexOf(num2[i])\n        if(idx != -1){\n            if(idx == i){ \n                a++   \n            }else{\n                b++\n            }\n        }\n    }\n    return {\n        a:a,\n        b:b\n    }\n}","created_at":"2018-11-03T16:11:49.288+08:00","updated_at":"2019-10-27T13:48:37.186+08:00","name":"1A2B 解題 副本","language":"javascript","screenshot":{"url":"https://cdn3.koding.school/uploads/project/screenshot/47703/7a047b5a7dac19a35cb0cdaa1c517a42.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":71,"hashid":"9ygsz55e","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}