{"trustable":false,"prependHtml":"\u003cscript\u003e window.katexOptions \u003d { disable: true }; \u003c/script\u003e\n\u003cscript type\u003d\"text/x-mathjax-config\"\u003e\n MathJax.Hub.Config({\n tex2jax: {\n inlineMath: [[\u0027$$$\u0027,\u0027$$$\u0027], [\u0027$\u0027,\u0027$\u0027]],\n displayMath: [[\u0027$$$$$$\u0027,\u0027$$$$$$\u0027], [\u0027$$\u0027,\u0027$$\u0027]]\n }\n });\n\u003c/script\u003e\n\u003cscript async src\u003d\"https://mathjax.codeforces.org/MathJax.js?config\u003dTeX-AMS-MML_HTMLorMML\" type\u003d\"text/javascript\"\u003e\u003c/script\u003e","sections":[{"title":"","value":{"format":"HTML","content":"\u003cscript type\u003d\u0027text/x-mathjax-config\u0027\u003eMathJax.Hub.Config({tex2jax: { inlineMath: [[\u0027$\u0027,\u0027$\u0027]] } }); \u003c/script\u003e\n\u003cscript type\u003d\u0027text/javascript\u0027 src\u003d\u0027https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config\u003dTeX-AMS-MML_HTMLorMML\u0027\u003e\u003c/script\u003e\n\u003cscript type\u003d\u0027text/javascript\u0027\u003esetTimeout(function(){MathJax.Hub.Queue([\u0027Typeset\u0027, MathJax.Hub, \u0027left_view\u0027]);}, 2000);\u003c/script\u003e\n\u003cdiv class\u003d\"panel_content\"\u003e\n牛牛子想当嘉然小姐的狗,但嘉然小姐喜欢的是猫,于是他在纸上画了一个规则的实心十二面体,这个十二面体上面的 20个顶点标出的20个国家,牛牛子想从一个国家出发经过每个国家恰好一次后回到出发的国家。但是他不懂,你能帮帮他吗? \n \u003cbr\u003e\n\u003c/div\u003e"}},{"title":"Input","value":{"format":"HTML","content":"前20行的第i行有3个数,表示与第i个国家相邻的3个国家.第20行以后每行有1个数m,m\u0026lt;\u003d20,m\u0026gt;\u003d1.m\u003d0退出.\n\u003cbr\u003e"}},{"title":"Output","value":{"format":"HTML","content":"输出牛牛子从第m个国家出发经过每个国家1次又回到m的所有路线,如有多条路线,按字典序输出,每行1条路线.每行首先输出是第几条路线.然后个一个: 后列出经过的国家.参看Sample output\n\u003cbr\u003e"}},{"title":"Sample Input","value":{"format":"HTML","content":"\u003cpre\u003e2 5 20\n1 3 12\n2 4 10\n3 5 8\n1 4 6\n5 7 19\n6 8 17\n4 7 9\n8 10 16\n3 9 11\n10 12 15\n2 11 13\n12 14 20\n13 15 18\n11 14 16\n9 15 17\n7 16 18\n14 17 19\n6 18 20\n1 13 19\n5\n0\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"HTML","content":"\u003cpre\u003e1: 5 1 2 3 4 8 7 17 18 14 15 16 9 10 11 12 13 20 19 6 5\n2: 5 1 2 3 4 8 9 10 11 12 13 20 19 18 14 15 16 17 7 6 5\n3: 5 1 2 3 10 9 16 17 18 14 15 11 12 13 20 19 6 7 8 4 5\n4: 5 1 2 3 10 11 12 13 20 19 6 7 17 18 14 15 16 9 8 4 5\n5: 5 1 2 12 11 10 3 4 8 9 16 15 14 13 20 19 18 17 7 6 5\n6: 5 1 2 12 11 15 14 13 20 19 18 17 16 9 10 3 4 8 7 6 5\n7: 5 1 2 12 11 15 16 9 10 3 4 8 7 17 18 14 13 20 19 6 5\n8: 5 1 2 12 11 15 16 17 18 14 13 20 19 6 7 8 9 10 3 4 5\n9: 5 1 2 12 13 20 19 6 7 8 9 16 17 18 14 15 11 10 3 4 5\n10: 5 1 2 12 13 20 19 18 14 15 11 10 3 4 8 9 16 17 7 6 5\n11: 5 1 20 13 12 2 3 4 8 7 17 16 9 10 11 15 14 18 19 6 5\n12: 5 1 20 13 12 2 3 10 11 15 14 18 19 6 7 17 16 9 8 4 5\n13: 5 1 20 13 14 15 11 12 2 3 10 9 16 17 18 19 6 7 8 4 5\n14: 5 1 20 13 14 15 16 9 10 11 12 2 3 4 8 7 17 18 19 6 5\n15: 5 1 20 13 14 15 16 17 18 19 6 7 8 9 10 11 12 2 3 4 5\n16: 5 1 20 13 14 18 19 6 7 17 16 15 11 12 2 3 10 9 8 4 5\n17: 5 1 20 19 6 7 8 9 10 11 15 16 17 18 14 13 12 2 3 4 5\n18: 5 1 20 19 6 7 17 18 14 13 12 2 3 10 11 15 16 9 8 4 5\n19: 5 1 20 19 18 14 13 12 2 3 4 8 9 10 11 15 16 17 7 6 5\n20: 5 1 20 19 18 17 16 9 10 11 15 14 13 12 2 3 4 8 7 6 5\n21: 5 4 3 2 1 20 13 12 11 10 9 8 7 17 16 15 14 18 19 6 5\n22: 5 4 3 2 1 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5\n23: 5 4 3 2 12 11 10 9 8 7 6 19 18 17 16 15 14 13 20 1 5\n24: 5 4 3 2 12 13 14 18 17 16 15 11 10 9 8 7 6 19 20 1 5\n25: 5 4 3 10 9 8 7 6 19 20 13 14 18 17 16 15 11 12 2 1 5\n26: 5 4 3 10 9 8 7 17 16 15 11 12 2 1 20 13 14 18 19 6 5\n27: 5 4 3 10 11 12 2 1 20 13 14 15 16 9 8 7 17 18 19 6 5\n28: 5 4 3 10 11 15 14 13 12 2 1 20 19 18 17 16 9 8 7 6 5\n29: 5 4 3 10 11 15 14 18 17 16 9 8 7 6 19 20 13 12 2 1 5\n30: 5 4 3 10 11 15 16 9 8 7 17 18 14 13 12 2 1 20 19 6 5\n31: 5 4 8 7 6 19 18 17 16 9 10 3 2 12 11 15 14 13 20 1 5\n32: 5 4 8 7 6 19 20 13 12 11 15 14 18 17 16 9 10 3 2 1 5\n33: 5 4 8 7 17 16 9 10 3 2 1 20 13 12 11 15 14 18 19 6 5\n34: 5 4 8 7 17 18 14 13 12 11 15 16 9 10 3 2 1 20 19 6 5\n35: 5 4 8 9 10 3 2 1 20 19 18 14 13 12 11 15 16 17 7 6 5\n36: 5 4 8 9 10 3 2 12 11 15 16 17 7 6 19 18 14 13 20 1 5\n37: 5 4 8 9 16 15 11 10 3 2 12 13 14 18 17 7 6 19 20 1 5\n38: 5 4 8 9 16 15 14 13 12 11 10 3 2 1 20 19 18 17 7 6 5\n39: 5 4 8 9 16 15 14 18 17 7 6 19 20 13 12 11 10 3 2 1 5\n40: 5 4 8 9 16 17 7 6 19 18 14 15 11 10 3 2 12 13 20 1 5\n41: 5 6 7 8 4 3 2 12 13 14 15 11 10 9 16 17 18 19 20 1 5\n42: 5 6 7 8 4 3 10 9 16 17 18 19 20 13 14 15 11 12 2 1 5\n43: 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5\n44: 5 6 7 8 9 16 17 18 19 20 1 2 12 13 14 15 11 10 3 4 5\n45: 5 6 7 17 16 9 8 4 3 10 11 15 14 18 19 20 13 12 2 1 5\n46: 5 6 7 17 16 15 11 10 9 8 4 3 2 12 13 14 18 19 20 1 5\n47: 5 6 7 17 16 15 11 12 13 14 18 19 20 1 2 3 10 9 8 4 5\n48: 5 6 7 17 16 15 14 18 19 20 13 12 11 10 9 8 4 3 2 1 5\n49: 5 6 7 17 18 19 20 1 2 3 10 11 12 13 14 15 16 9 8 4 5\n50: 5 6 7 17 18 19 20 13 14 15 16 9 8 4 3 10 11 12 2 1 5\n51: 5 6 19 18 14 13 20 1 2 12 11 15 16 17 7 8 9 10 3 4 5\n52: 5 6 19 18 14 15 11 10 9 16 17 7 8 4 3 2 12 13 20 1 5\n53: 5 6 19 18 14 15 11 12 13 20 1 2 3 10 9 16 17 7 8 4 5\n54: 5 6 19 18 14 15 16 17 7 8 9 10 11 12 13 20 1 2 3 4 5\n55: 5 6 19 18 17 7 8 4 3 2 12 11 10 9 16 15 14 13 20 1 5\n56: 5 6 19 18 17 7 8 9 16 15 14 13 20 1 2 12 11 10 3 4 5\n57: 5 6 19 20 1 2 3 10 9 16 15 11 12 13 14 18 17 7 8 4 5\n58: 5 6 19 20 1 2 12 13 14 18 17 7 8 9 16 15 11 10 3 4 5\n59: 5 6 19 20 13 12 11 10 9 16 15 14 18 17 7 8 4 3 2 1 5\n60: 5 6 19 20 13 14 18 17 7 8 4 3 10 9 16 15 11 12 2 1 5\u003c/pre\u003e"}},{"title":"exp","value":{"format":"HTML","content":"\u003c/br\u003e\n\u003ca href\u003d\"https://space.bilibili.com/672346917?from\u003dsearch\u0026seid\u003d1973793795304928591\"\u003e点我关注向晚\u003c/a\u003e\n\u003c/br\u003e\n\u003cimg src \u003d \"https://i.loli.net/2021/07/18/zrqyLNcW6hakQtG.png\"/\u003e\u003c/br\u003e\n牛牛子在湖边洗钻石时,一不小心手一滑,刚买的两颗粉钻掉进湖里。忍不住坐在湖边哭了起来。\u003c/br\u003e\n就在这时,湖里举起两颗紫钻。\u003c/br\u003e\n牛牛子:“这两颗钻石都不是我的”\u003c/br\u003e\n一个声音打断了牛牛子:\u003c/br\u003e\n“没说是你的。这里是 AvA 向晚,懒羊羊不偷懒,钻头不暂缓,喜欢要直接,告白不气喘!”"}}]}