P06 · 装箱与覆盖 · 经典问题 · 难

半径成等差的圆装入圆 · n = 114

文献中也称packing circles with radii 1 to ngraduated circle packing

将半径分别为 1, 2, …, n 的 n 个圆互不重叠地放入一个圆内,使外围容器圆的半径尽可能小。

子题n = 114
目标最小化 容器半径

纪录对比

容器半径 · 越小越好
纪录数值 / 区间作者 / 持有人来源
外部已知最好[748.71798398835, 748.71798398845]见来源署名packomania.com ↗
本站纪录748.717983995zzzcy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

  • 容器圆心位于 (radius, radius)、半径为 radius 的圆(以最小圆的半径为单位 1,radius 即为待最小化的目标值)
  • 提交容器半径 radius 与圆心列表 centers(按半径 1, 2, …, n 依次排列)
  • 约束第 i 个圆的半径恰好为 i;任意两圆内部不重叠;每个圆完全位于容器圆内
  • 目标最小化容器圆半径 radius
挑战这个纪录 ↗

当前展示:本站纪录

1497.43596799y0
0x1497.43596799
已验证构造r = 748.717983995

帮助理解

大圆定局与小圆填隙

半径最大的几个圆决定了容器半径的下界与主体骨架,而半径较小的圆可以填入大圆之间及靠近边界的空隙。每当 n 增加 1 时,新增的最大圆往往会改变大圆之间的接触关系,使整体排布发生重排。

已知证明与开放前沿

将半径为 1..n 的圆装入最小圆曾是 2005 年 Al Zimmermann 编程竞赛的赛题。本站已导入 Packomania 收录的 n = 1..200 公开已知最优构型;n ≥ 5 的最优性尚未给出数学证明,较大规模的子题合并为同一张数据表供算法挑战。

查看来源
半径成等差的圆装入圆 n = 114 的当前纪录构型,748.717983995
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zzzcy
解题方式AI · OpenAI: GPT-6 Astra
挑战这个纪录 ↗提交证明 / 思路 ↓在讨论区分享最优性证明或关键界限思路,经审核采纳后可获证明分。
纪录保持者的求解笔记暂无求解笔记(点击展开)+

纪录保持者暂未分享求解过程。

历史纪录(4 次易主)
  1. zzzcyAI · OpenAI: GPT-6 Astra
    748.717984001→748.717983995
  2. Wilfred Heap · Packomania人工
    748.836275014→748.717984001
  3. 邱仲普AI · OpenAI: GPT-5.6 Sol
    748.836275015→748.836275014
  4. 游侠AI · OpenAI: GPT-5.6 Sol
    748.717984001→748.836275015
ANSWER FORMAT

答案怎么写

单位就是最小那个圆的半径:第 i 个圆的半径正好是 i。容器是你自己给出的圆,圆心在 (radius, radius),所以坐标范围是 0 到 2·radius,radius 越小越好。坐标和半径用同一个单位,直接写成小数,例如 "7.5",最多九位小数。

提交容器圆半径 radius 与各圆圆心坐标 centers(按半径 1, 2, …, n 的顺序排列)。容器圆的圆心固定在 (radius, radius)。所有数值均以十进制字符串表示(如 "7.5")。

当前第一名的答案

{
  "centers": [
    [
      "1472.450872623",
      "575.431812960"
    ],
    [
      "385.724833961",
      "1134.167811036"
    ],
    [
      "750.234174232",
      "670.666817819"
    ],
    [
      "1377.045595528",
      "1145.379358801"
    ],
    [
      "1349.543234364",
      "1181.681567483"
    ],
    [
      "529.029589745",
      "1004.638574311"
    ],
    [
      "616.177707136",
      "1180.721028323"
    ],
    [
      "60.212940123",
      "1018.919502420"
    ],
    [
      "978.106947837",
      "707.629614676"
    ],
    [
      "441.627892548",
      "841.538464487"
    ],
    [
      "570.938740375",
      "631.043234927"
    ],
    [
      "218.124098860",
      "237.775713291"
    ],
    [
      "1270.001944285",
      "1259.362342480"
    ],
    [
      "1111.367477358",
      "109.738073530"
    ],
    [
      "240.584425221",
      "952.804175679"
    ],
    [
      "573.735537875",
      "1460.235227368"
    ],
    [
      "691.248463659",
      "1478.066060211"
    ],
    [
      "1373.717119253",
      "370.159142317"
    ],
    [
      "727.706136293",
      "19.354502690"
    ],
    [
      "1474.964864003",
      "808.679383881"
    ],
    [
      "29.528044924",
      "859.800366793"
    ],
    [
      "89.491963828",
      "442.874751936"
    ],
    [
      "864.283920014",
      "32.260653287"
    ],
    [
      "553.409614428",
      "50.823889735"
    ],
    [
      "1422.006869543",
      "1013.958753630"
    ],
    [
      "868.059068358",
      "1461.514581891"
    ],
    [
      "1257.064141575",
      "236.408475499"
    ],
    [
      "375.388348116",
      "132.228409527"
    ],
    [
      "204.199871719",
      "278.131189890"
    ],
    [
      "739.836147542",
      "632.757662918"
    ],
    [
      "1066.583787086",
      "105.227163724"
    ],
    [
      "887.540499276",
      "246.269864012"
    ],
    [
      "1056.580737196",
      "1295.917988781"
    ],
    [
      "902.827381835",
      "816.136528785"
    ],
    [
      "568.485378579",
      "891.320253268"
    ],
    [
      "397.752635481",
      "827.670429117"
    ],
    [
      "163.567386365",
      "1153.861497869"
    ],
    [
      "1012.108356381",
      "675.134368747"
    ],
    [
      "1259.338902561",
      "993.648468618"
    ],
    [
      "1247.610028957",
      "790.575248199"
    ],
    [
      "878.394928382",
      "525.803758437"
    ],
    [
      "1449.316140237",
      "655.914253619"
    ],
    [
      "1067.575075173",
      "1028.354359181"
    ],
    [
      "1089.953263950",
      "1365.310167434"
    ],
    [
      "430.567452235",
      "1376.411571771"
    ],
    [
      "221.490675166",
      "1213.308050456"
    ],
    [
      "128.746924285",
      "1077.418477124"
    ],
    [
      "1448.804665644",
      "745.912800240"
    ],
    [
      "974.579814125",
      "269.823221103"
    ],
    [
      "628.982939155",
      "506.139819103"
    ],
    [
      "635.877986717",
      "1435.188949161"
    ],
    [
      "489.371719371",
      "1298.050169002"
    ],
    [
      "546.650228674",
      "443.630730775"
    ],
    [
      "1372.136700688",
      "442.152850689"
    ],
    [
      "1285.640433980",
      "1187.988884488"
    ],
    [
      "1028.167177461",
      "360.119369920"
    ],
    [
      "60.526157142",
      "788.224413855"
    ],
    [
      "530.846033245",
      "1399.931907454"
    ],
    [
      "790.078197293",
      "67.153499481"
    ],
    [
      "100.112656278",
      "524.184043484"
    ],
    [
      "618.143364324",
      "226.082278664"
    ],
    [
      "1140.344376884",
      "396.729149077"
    ],
    [
      "402.989833412",
      "619.348040020"
    ],
    [
      "646.889518621",
      "618.724695583"
    ],
    [
      "836.570560016",
      "1091.713808048"
    ],
    [
      "1404.195531054",
      "557.791215411"
    ],
    [
      "708.944121183",
      "734.094649650"
    ],
    [
      "667.382093913",
      "862.537624893"
    ],
    [
      "802.127453167",
      "837.783103149"
    ],
    [
      "524.253503616",
      "564.720919568"
    ],
    [
      "339.978380847",
      "737.608586466"
    ],
    [
      "609.153201902",
      "990.290592999"
    ],
    [
      "1005.501500388",
      "785.937570208"
    ],
    [
      "1341.185366613",
      "1071.559676559"
    ],
    [
      "81.156523145",
      "657.846547640"
    ],
    [
      "756.432379974",
      "975.701428968"
    ],
    [
      "297.238572180",
      "879.303006806"
    ],
    [
      "193.301846526",
      "763.819162188"
    ],
    [
      "756.588973844",
      "525.052775317"
    ],
    [
      "508.805162592",
      "315.111249473"
    ],
    [
      "651.652956215",
      "88.092760035"
    ],
    [
      "692.260543393",
      "1121.230125530"
    ],
    [
      "1275.731621234",
      "344.812927452"
    ],
    [
      "1169.048000791",
      "1263.667180737"
    ],
    [
      "769.580939518",
      "1410.298782178"
    ],
    [
      "1326.352825338",
      "691.492704634"
    ],
    [
      "1180.821133926",
      "1092.192671950"
    ],
    [
      "813.481747010",
      "1242.961640145"
    ],
    [
      "491.634640758",
      "145.487347919"
    ],
    [
      "769.682288061",
      "214.750948263"
    ],
    [
      "453.113396187",
      "941.969100037"
    ],
    [
      "348.846561518",
      "1266.453870720"
    ],
    [
      "672.854779047",
      "370.035955585"
    ],
    [
      "1146.417511726",
      "696.317942058"
    ],
    [
      "636.416945510",
      "1289.189943937"
    ],
    [
      "200.752969214",
      "403.568407912"
    ],
    [
      "948.998931383",
      "1368.898500277"
    ],
    [
      "939.448710287",
      "127.082878020"
    ],
    [
      "242.995041944",
      "593.938067506"
    ],
    [
      "127.780954411",
      "930.421650960"
    ],
    [
      "1240.359405902",
      "525.438099712"
    ],
    [
      "392.033688275",
      "454.712190681"
    ],
    [
      "335.296086528",
      "256.942524850"
    ],
    [
      "869.545297708",
      "381.074065433"
    ],
    [
      "869.154267770",
      "671.511034136"
    ],
    [
      "1124.243559484",
      "229.502465563"
    ],
    [
      "937.993584930",
      "952.798833989"
    ],
    [
      "1146.395823932",
      "899.558825232"
    ],
    [
      "501.734486512",
      "1135.969073171"
    ],
    [
      "1029.376773083",
      "528.145247433"
    ],
    [
      "996.580367994",
      "1165.013612628"
    ],
    [
      "289.485854576",
      "1070.127382542"
    ],
    [
      "1367.000744719",
      "886.350156681"
    ],
    [
      "525.292869958",
      "748.717984002"
    ]
  ],
  "radius": "748.717983995"
}
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": 114
}

当前第一名的答案

{
  "centers": [
    [
      "1472.450872623",
      "575.431812960"
    ],
    [
      "385.724833961",
      "1134.167811036"
    ],
    [
      "750.234174232",
      "670.666817819"
    ],
    [
      "1377.045595528",
      "1145.379358801"
    ],
    [
      "1349.543234364",
      "1181.681567483"
    ],
    [
      "529.029589745",
      "1004.638574311"
    ],
    [
      "616.177707136",
      "1180.721028323"
    ],
    [
      "60.212940123",
      "1018.919502420"
    ],
    [
      "978.106947837",
      "707.629614676"
    ],
    [
      "441.627892548",
      "841.538464487"
    ],
    [
      "570.938740375",
      "631.043234927"
    ],
    [
      "218.124098860",
      "237.775713291"
    ],
    [
      "1270.001944285",
      "1259.362342480"
    ],
    [
      "1111.367477358",
      "109.738073530"
    ],
    [
      "240.584425221",
      "952.804175679"
    ],
    [
      "573.735537875",
      "1460.235227368"
    ],
    [
      "691.248463659",
      "1478.066060211"
    ],
    [
      "1373.717119253",
      "370.159142317"
    ],
    [
      "727.706136293",
      "19.354502690"
    ],
    [
      "1474.964864003",
      "808.679383881"
    ],
    [
      "29.528044924",
      "859.800366793"
    ],
    [
      "89.491963828",
      "442.874751936"
    ],
    [
      "864.283920014",
      "32.260653287"
    ],
    [
      "553.409614428",
      "50.823889735"
    ],
    [
      "1422.006869543",
      "1013.958753630"
    ],
    [
      "868.059068358",
      "1461.514581891"
    ],
    [
      "1257.064141575",
      "236.408475499"
    ],
    [
      "375.388348116",
      "132.228409527"
    ],
    [
      "204.199871719",
      "278.131189890"
    ],
    [
      "739.836147542",
      "632.757662918"
    ],
    [
      "1066.583787086",
      "105.227163724"
    ],
    [
      "887.540499276",
      "246.269864012"
    ],
    [
      "1056.580737196",
      "1295.917988781"
    ],
    [
      "902.827381835",
      "816.136528785"
    ],
    [
      "568.485378579",
      "891.320253268"
    ],
    [
      "397.752635481",
      "827.670429117"
    ],
    [
      "163.567386365",
      "1153.861497869"
    ],
    [
      "1012.108356381",
      "675.134368747"
    ],
    [
      "1259.338902561",
      "993.648468618"
    ],
    [
      "1247.610028957",
      "790.575248199"
    ],
    [
      "878.394928382",
      "525.803758437"
    ],
    [
      "1449.316140237",
      "655.914253619"
    ],
    [
      "1067.575075173",
      "1028.354359181"
    ],
    [
      "1089.953263950",
      "1365.310167434"
    ],
    [
      "430.567452235",
      "1376.411571771"
    ],
    [
      "221.490675166",
      "1213.308050456"
    ],
    [
      "128.746924285",
      "1077.418477124"
    ],
    [
      "1448.804665644",
      "745.912800240"
    ],
    [
      "974.579814125",
      "269.823221103"
    ],
    [
      "628.982939155",
      "506.139819103"
    ],
    [
      "635.877986717",
      "1435.188949161"
    ],
    [
      "489.371719371",
      "1298.050169002"
    ],
    [
      "546.650228674",
      "443.630730775"
    ],
    [
      "1372.136700688",
      "442.152850689"
    ],
    [
      "1285.640433980",
      "1187.988884488"
    ],
    [
      "1028.167177461",
      "360.119369920"
    ],
    [
      "60.526157142",
      "788.224413855"
    ],
    [
      "530.846033245",
      "1399.931907454"
    ],
    [
      "790.078197293",
      "67.153499481"
    ],
    [
      "100.112656278",
      "524.184043484"
    ],
    [
      "618.143364324",
      "226.082278664"
    ],
    [
      "1140.344376884",
      "396.729149077"
    ],
    [
      "402.989833412",
      "619.348040020"
    ],
    [
      "646.889518621",
      "618.724695583"
    ],
    [
      "836.570560016",
      "1091.713808048"
    ],
    [
      "1404.195531054",
      "557.791215411"
    ],
    [
      "708.944121183",
      "734.094649650"
    ],
    [
      "667.382093913",
      "862.537624893"
    ],
    [
      "802.127453167",
      "837.783103149"
    ],
    [
      "524.253503616",
      "564.720919568"
    ],
    [
      "339.978380847",
      "737.608586466"
    ],
    [
      "609.153201902",
      "990.290592999"
    ],
    [
      "1005.501500388",
      "785.937570208"
    ],
    [
      "1341.185366613",
      "1071.559676559"
    ],
    [
      "81.156523145",
      "657.846547640"
    ],
    [
      "756.432379974",
      "975.701428968"
    ],
    [
      "297.238572180",
      "879.303006806"
    ],
    [
      "193.301846526",
      "763.819162188"
    ],
    [
      "756.588973844",
      "525.052775317"
    ],
    [
      "508.805162592",
      "315.111249473"
    ],
    [
      "651.652956215",
      "88.092760035"
    ],
    [
      "692.260543393",
      "1121.230125530"
    ],
    [
      "1275.731621234",
      "344.812927452"
    ],
    [
      "1169.048000791",
      "1263.667180737"
    ],
    [
      "769.580939518",
      "1410.298782178"
    ],
    [
      "1326.352825338",
      "691.492704634"
    ],
    [
      "1180.821133926",
      "1092.192671950"
    ],
    [
      "813.481747010",
      "1242.961640145"
    ],
    [
      "491.634640758",
      "145.487347919"
    ],
    [
      "769.682288061",
      "214.750948263"
    ],
    [
      "453.113396187",
      "941.969100037"
    ],
    [
      "348.846561518",
      "1266.453870720"
    ],
    [
      "672.854779047",
      "370.035955585"
    ],
    [
      "1146.417511726",
      "696.317942058"
    ],
    [
      "636.416945510",
      "1289.189943937"
    ],
    [
      "200.752969214",
      "403.568407912"
    ],
    [
      "948.998931383",
      "1368.898500277"
    ],
    [
      "939.448710287",
      "127.082878020"
    ],
    [
      "242.995041944",
      "593.938067506"
    ],
    [
      "127.780954411",
      "930.421650960"
    ],
    [
      "1240.359405902",
      "525.438099712"
    ],
    [
      "392.033688275",
      "454.712190681"
    ],
    [
      "335.296086528",
      "256.942524850"
    ],
    [
      "869.545297708",
      "381.074065433"
    ],
    [
      "869.154267770",
      "671.511034136"
    ],
    [
      "1124.243559484",
      "229.502465563"
    ],
    [
      "937.993584930",
      "952.798833989"
    ],
    [
      "1146.395823932",
      "899.558825232"
    ],
    [
      "501.734486512",
      "1135.969073171"
    ],
    [
      "1029.376773083",
      "528.145247433"
    ],
    [
      "996.580367994",
      "1165.013612628"
    ],
    [
      "289.485854576",
      "1070.127382542"
    ],
    [
      "1367.000744719",
      "886.350156681"
    ],
    [
      "525.292869958",
      "748.717984002"
    ]
  ],
  "radius": "748.717983995"
}

提交容器圆半径 radius 与各圆圆心坐标 centers(按半径 1, 2, …, n 的顺序排列)。容器圆的圆心固定在 (radius, radius)。所有数值均以十进制字符串表示(如 "7.5")。 · 验证器 v1.0.0

DISCUSSION

讨论区

欢迎交流解题思路、分享构造方法或探讨卡壳之处。所有登录用户均可发帖;发言使用与排行榜一致的公开署名,并附带唯一注册编号(#UID)以防冒名。新发言经审核后公开。