計算作答時間時保留逾時個案

訂明本例驗收任務

假設回應清單每次列已完成的安全整數毫秒，或到安全整數期限仍逾時。完成時間用 BigInt 相加；分子超出安全整數範圍用確切十進文字，較小結果仍用數值。完成時間不得為負或遲於期限；逾時須省略完成時間或用 null，已知完成時間與此狀態矛盾。列已完成平均的分子與分母、逾時數及總嘗試數。

分開完成及逾時狀態
核已知完成時間界限
平均值連同完成覆蓋一起報

時間矛盾便停止此時間報表。

使用已填個案

原創假設輸入及確切答案鍵
個案	已提供輸入	預期結構化結果	判斷及原因
兩次完成及一次逾時	{"attempts":[{"status":"completed","durationMs":2000,"deadlineMs":10000},{"status":"completed","durationMs":4000,"deadlineMs":10000},{"status":"timeout","deadlineMs":10000}]}	{"attempts":3,"completed":2,"timeouts":1,"completedMean":[6000,2]}	已完成平均 3000 毫秒；完成 2/3，逾時仍另列。
沒有完成時間	{"attempts":[{"status":"timeout","deadlineMs":10000}]}	{"attempts":1,"completed":0,"timeouts":1,"completedMean":null}	期限不是已知完成時間，平均值未知。
逾時卻帶已知完成時間	{"attempts":[{"status":"timeout","durationMs":9000,"deadlineMs":10000}]}	{"error":"duration-ledger"}	已知9000毫秒完成，不能列作到10000毫秒仍未完成。
安全輸入合計超出數值範圍	{"attempts":[{"status":"completed","durationMs":9007199254740991,"deadlineMs":9007199254740991},{"status":"completed","durationMs":9007199254740991,"deadlineMs":9007199254740991},{"status":"completed","durationMs":1,"deadlineMs":1}]}	{"attempts":3,"completed":3,"timeouts":0,"completedMean":["18014398509481983",3]}	確切分子是18014398509481983毫秒，用十進文字保留，不可錯寫成18014398509481984。
完成時間超過期限	{"attempts":[{"status":"completed","durationMs":11000,"deadlineMs":10000}]}	{"error":"duration-ledger"}	按本例期限模型，此次不能列完成。

下載可編輯 CSV ↓

逐步處理 completed-after-deadline 個案，須得到甚麼結果？原因是甚麼？

查看參考答案

{"error":"duration-ledger"}。按本例期限模型，此次不能列完成。

執行完整本機驗算

另存為 .mjs，以 Node.js 執行；只驗提供的個案

import assert from 'node:assert/strict';

function evaluate(x){
 const completed=x.attempts.filter(a=>a.status==='completed');if(x.attempts.some(a=>!Number.isSafeInteger(a.deadlineMs)||a.deadlineMs<0||!['completed','timeout'].includes(a.status)||(a.status==='timeout'&&Object.hasOwn(a,'durationMs')&&a.durationMs!==null)||(a.status==='completed'&&(!Number.isSafeInteger(a.durationMs)||a.durationMs<0||a.durationMs>a.deadlineMs))))return {error:'duration-ledger'};
 const sum=completed.reduce((s,a)=>s+BigInt(a.durationMs),0n),numerator=sum<=BigInt(Number.MAX_SAFE_INTEGER)?Number(sum):sum.toString();
 return {attempts:x.attempts.length,completed:completed.length,timeouts:x.attempts.filter(a=>a.status==='timeout').length,completedMean:completed.length?[numerator,completed.length]:null};
}

const cases = [
  {
    "id": "one-timeout",
    "input": {
      "attempts": [
        {
          "status": "completed",
          "durationMs": 2000,
          "deadlineMs": 10000
        },
        {
          "status": "completed",
          "durationMs": 4000,
          "deadlineMs": 10000
        },
        {
          "status": "timeout",
          "deadlineMs": 10000
        }
      ]
    },
    "expected": {
      "attempts": 3,
      "completed": 2,
      "timeouts": 1,
      "completedMean": [
        6000,
        2
      ]
    }
  },
  {
    "id": "all-timeout",
    "input": {
      "attempts": [
        {
          "status": "timeout",
          "deadlineMs": 10000
        }
      ]
    },
    "expected": {
      "attempts": 1,
      "completed": 0,
      "timeouts": 1,
      "completedMean": null
    }
  },
  {
    "id": "timeout-known-duration",
    "input": {
      "attempts": [
        {
          "status": "timeout",
          "durationMs": 9000,
          "deadlineMs": 10000
        }
      ]
    },
    "expected": {
      "error": "duration-ledger"
    }
  },
  {
    "id": "exact-large-aggregate",
    "input": {
      "attempts": [
        {
          "status": "completed",
          "durationMs": 9007199254740991,
          "deadlineMs": 9007199254740991
        },
        {
          "status": "completed",
          "durationMs": 9007199254740991,
          "deadlineMs": 9007199254740991
        },
        {
          "status": "completed",
          "durationMs": 1,
          "deadlineMs": 1
        }
      ]
    },
    "expected": {
      "attempts": 3,
      "completed": 3,
      "timeouts": 0,
      "completedMean": [
        "18014398509481983",
        3
      ]
    }
  },
  {
    "id": "completed-after-deadline",
    "input": {
      "attempts": [
        {
          "status": "completed",
          "durationMs": 11000,
          "deadlineMs": 10000
        }
      ]
    },
    "expected": {
      "error": "duration-ledger"
    }
  }
];
for (const c of cases) assert.deepEqual(evaluate(c.input), c.expected, c.id);
console.log(JSON.stringify({checked:cases.length,caseIds:cases.map(c=>c.id)}));

下載可執行例子 ↓

逾時仍在嘗試分母內。已完成平均只描述假設記錄，不承諾回應時間，也不估逾時項最終何時完成。

訂明本例驗收任務

使用已填個案

執行完整本機驗算

相關資源