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 listJul 29, 2026 22:44Andrew TsibinAndrew TsibinError
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Run Statistics
#DateScoreWall TimeCPU UserCPU SystemMemoryError
1Jul 29, 2026 22:45097,599,41669,982,00017,601,00094,392,320diff: map[string]any{ + "age": s"0", "height": s"189.6", "id": s"399575", "married": bool(false), }
2Jul 29, 2026 22:45098,079,58070,165,00017,355,00094,392,320diff: map[string]any{ + "age": s"0", "height": s"154.3", "id": s"847045", ... // 2 identical entries }
3Jul 29, 2026 22:45097,176,66169,784,00017,303,00094,392,320diff: map[string]any{ + "age": s"0", "height": s"152.3", "id": s"774902", "married": bool(true), }