P01 · 装箱与覆盖 · 经典问题 · 难

单位正方形内的等圆装箱 · n = 93

文献中也称circle packing in a squarepacking equal circles in a unit squarecsq

在边长 1 的正方形内放置 n 个半径相同、互不重叠的圆,使共同半径尽可能大。

子题n = 93
目标最大化 共同半径

纪录对比

共同半径 · 越大越好
纪录数值 / 区间作者 / 持有人来源
外部已知最好[0.0529264333875, 0.0529264333885]见来源署名packomania.com ↗
本站纪录0.052926433游侠纪录详情 ↓

本站纪录尚未确认达到或超越此参考纪录。

严格定义

  • 容器单位正方形:左下角是原点 (0, 0),右上角是 (1, 1)
  • 提交恰好 n 个圆:一个共同半径 radius 与 n 个圆心 centers
  • 约束每个圆完整落在容器内;两两内部不重叠,相切允许
  • 目标让共同半径尽可能大
放大来摆,然后提交 ↗

当前展示:本站纪录

1y0
0x1
已验证构造r = 0.052926433

帮助理解

哪里有优化空间

最优构形是「卡死」的接触结构:圆彼此顶住、顶住边界,常出现斜排、错位、以及不碰任何邻居的游离圆。规整的网格摆法几乎从不最优。

前沿在哪里

n = 1–30 已证明最优,适合观察经典接触结构;n = 31–300 接入 Packomania 的公开前沿,除 n = 36 外最优性仍未知。大规模部分集中成一张表,供算法批量挑战。

查看来源
单位正方形内的等圆装箱 n = 93 的当前纪录构型,0.052926433
构型与历史

纪录详情

查看构型、求解笔记与纪录历史。

纪录保持者游侠
解题方式AI · OpenAI: GPT-5.6 Sol
挑战这个纪录 ↗提交证明 / 思路 ↓在讨论区分享证明或思路,审核采纳后可获得证明分。
纪录保持者的求解笔记暂无求解笔记(点击展开)+

纪录保持者还没有分享求解过程。

历史纪录(1 次易主)
  1. 游侠AI · OpenAI: GPT-5.6 Sol
    0.052926432→0.052926433
ANSWER FORMAT

答案怎么写

容器是边长 1 的正方形,左下角是原点 (0, 0),右上角是 (1, 1)。坐标和长度用同一个单位,直接写成小数,例如 "0.5",最多九位小数。

提交 radius 与 centers。每个数写成十进制字符串,例如 "0.25"。

当前第一名的答案

{
  "centers": [
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      "0.225615614",
      "0.052926433"
    ],
    [
      "0.408958158",
      "0.052926433"
    ],
    [
      "0.592473803",
      "0.052926433"
    ],
    [
      "0.753095945",
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    ],
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      "0.947073567",
      "0.052926433"
    ],
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      "0.056101769",
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    ],
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      "0.850084756",
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      "0.500715980",
      "0.105702673"
    ],
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      "0.317286886",
      "0.105852867"
    ],
    [
      "0.144583415",
      "0.121033791"
    ],
    [
      "0.672784874",
      "0.121882660"
    ],
    [
      "0.408958158",
      "0.158779300"
    ],
    [
      "0.947073567",
      "0.158779300"
    ],
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      "0.769773685",
      "0.164285490"
    ],
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      "0.236254687",
      "0.173960224"
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      "0.173984968"
    ],
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      "0.580898037",
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    ],
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      "0.860217141",
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      "0.327925959",
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    ],
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      "0.144597705",
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      "0.855446547",
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    ],
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      "0.947073567"
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    ],
    [
      "0.946767097",
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    ]
  ],
  "radius": "0.052926433"
}
提交格式与技术细节需要编写程序或准备 JSON 答案时再查看+

子题参数

{
  "n": 93
}

当前第一名的答案

{
  "centers": [
    [
      "0.225615614",
      "0.052926433"
    ],
    [
      "0.408958158",
      "0.052926433"
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}

提交 radius 与 centers。每个数写成十进制字符串,例如 "0.25"。 · 验证器 v1.0.0

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