{"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 小明喜欢特别喜欢猜人,一天,他遇到了名字分别叫做R,P,G,的三个人。正准备自我介绍时,小明说:等一下!让我来猜一猜!小明猜:R是烤烤,P是乐乐,G是滋滋;第二次猜:R是乐乐,P是滋滋,G是烤烤;第三次猜:R是乐乐,P是烤烤,G是滋滋;......可怜的小明猜了六次才把RPG三人全部猜对。时光如梭,小明认识的人越来越多,而他依然特别喜欢猜人。这不,现在又面基了一群女生(N人),他要猜的次数可就多了。看在小明长得可爱的份上,女生们答应他答对一半或以上就算过关,请问有多少组答案能使他顺利过关。 \n\u003c/div\u003e"}},{"title":"Input","value":{"format":"HTML","content":"输入的数据有多组,每组包括一个n,代表有几个女生,(n\u0026lt;\u003d25), n \u003d 0输入结束。"}},{"title":"Output","value":{"format":"HTML","content":"\u003cpre\u003e每组数据输出一行,表示有多少组答案可使他顺利过关\n\u003c/pre\u003e"}},{"title":"Sample Input","value":{"format":"HTML","content":"\u003cpre\u003e1\n2\n0\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"HTML","content":"\u003cpre\u003e1\n1\u003c/pre\u003e"}}]}