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 listJun 30, 2026 15:26A_ShamanA_ShamanError
Source Code

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Run Statistics
#DateScoreWall TimeCPU UserCPU SystemMemoryError
1Jun 30, 2026 15:2701,981,725,4581,196,803,000775,440,000174,088,192diff:   map[string]any{ +  "age": s"0",    "height": s"198.1",    "id": s"311510",    ... // 2 identical entries   }
2Jun 30, 2026 15:2701,963,680,7911,193,002,000761,384,000174,088,192diff:   map[string]any{ +  "age": s"0",    "height": s"190.6",    "id": s"284140",    ... // 2 identical entries   }
3Jun 30, 2026 15:2701,971,411,7791,193,362,000768,720,000174,088,192diff:   map[string]any{ +  "age": s"0",    "height": s"177.9",    "id": s"250095",    ... // 2 identical entries   }