XML to JSON Sergey Svistunov

Convert 1,000,000 person records from XML to JSON as fast as possible.

Input

XML document on STDIN:

<?xml version="1.0" encoding="UTF-8"?>
<persons>
    <person id="1512376">
        <age>30</age>
        <height>169.1</height>
        <married>true</married>
        <phone code="+6"><number>1283603279</number></phone>
        <phone code="+6"><number>1659964668</number></phone>
    </person>
    ...
</persons>

Output

One JSON object per person to STDOUT, preserving order:

{
    "id": 1512376,
    "age": 30,
    "height": 169.1,
    "married": true,
    "phones": [
        {
            "code": "+6",
            "number": 1283603279
        },
        {
            "code": "+6",
            "number": 1659964668
        }
    ]
}

Constraints

  • Preserve the order of persons
  • Omit the phones field if the phone array is empty
  • Maximum number of phones per person is 3
Restrictions:60s512Mb 1 Score Packages
Back to listApr 21, 2026 09:53limanjun99limanjun99Error
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Run Statistics
#DateScoreWall TimeCPU UserCPU SystemMemoryError
1Apr 21, 2026 09:57059,520,68824,850,00010,934,00092,430,336diff: map[string]any{ "height": s"190.3", - "id": s"565833", + "id": s"65833", "married": bool(false), }
2Apr 21, 2026 09:57066,574,22525,746,0009,902,00092,696,576diff: map[string]any{ "age": s"66", "height": s"153.3", - "id": s"995213", + "id": s"95213", "married": bool(false), }
3Apr 21, 2026 09:57065,529,56727,613,0008,181,00092,684,288diff: map[string]any{ "age": s"48", "height": s"199.3", - "id": s"585326", + "id": s"85326", "married": bool(false), "phones": []any{map[string]any{"code": string("+4"), "number": s"1822507053"}}, }