"fencepost problem" meaning in English

{
  "etymology_text": "By analogy with fence-building. If one wants to say \"lay a fencepost, then a length of fence, then repeat\", then a special case must be made for the final fencepost. If one wants to say \"lay a length of fence, then a fencepost, then repeat\", then a special case must be made for the initial fencepost.",
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      "form": "fencepost problems",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "A problem dealing with how to treat the initial or boundary values of a discrete problem."
      ],
      "id": "en-fencepost_problem-en-noun-Y2Knj417",
      "links": [
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          "programming",
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        [
          "problem",
          "problem"
        ],
        [
          "initial",
          "initial"
        ],
        [
          "boundary",
          "boundary"
        ],
        [
          "value",
          "value"
        ],
        [
          "discrete",
          "discrete"
        ]
      ],
      "raw_glosses": [
        "(programming) A problem dealing with how to treat the initial or boundary values of a discrete problem."
      ],
      "related": [
        {
          "word": "off-by-one error"
        }
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "programming",
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      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "Translations",
          "word": "aidanpylväsvirhe"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "Translations",
          "tags": [
            "neuter"
          ],
          "word": "Zaunpfahlproblem"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "Translations",
          "tags": [
            "masculine"
          ],
          "word": "problem z ustaleniem granic problemu"
        }
      ],
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        "Off-by-one error"
      ]
    }
  ],
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  "word": "fencepost problem"
}

{
  "etymology_text": "By analogy with fence-building. If one wants to say \"lay a fencepost, then a length of fence, then repeat\", then a special case must be made for the final fencepost. If one wants to say \"lay a length of fence, then a fencepost, then repeat\", then a special case must be made for the initial fencepost.",
  "forms": [
    {
      "form": "fencepost problems",
      "tags": [
        "plural"
      ]
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "off-by-one error"
    }
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        "A problem dealing with how to treat the initial or boundary values of a discrete problem."
      ],
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          "problem",
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          "discrete",
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        ]
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        "(programming) A problem dealing with how to treat the initial or boundary values of a discrete problem."
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "programming",
        "sciences"
      ],
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        "Off-by-one error"
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  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "Translations",
      "word": "aidanpylväsvirhe"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "Translations",
      "tags": [
        "neuter"
      ],
      "word": "Zaunpfahlproblem"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "Translations",
      "tags": [
        "masculine"
      ],
      "word": "problem z ustaleniem granic problemu"
    }
  ],
  "word": "fencepost problem"
}