{"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 小明觉得太无趣了,还是字符串好玩儿。\n\u003cbr\u003e\n\u003cbr\u003e小明给了你一个只由小写英文字符组成的字符串S,求S中最长回文串的长度。\n\u003cbr\u003e\n\u003cbr\u003e 回文串是正着读反着读都一样的字符串。\n\u003c/div\u003e"}},{"title":"Input","value":{"format":"HTML","content":"输入有多组数据,不超过120组,每组输入为一行小写英文字符组成的字符串S \n\u003cbr\u003e两组数据之间由空行隔开\n\u003cbr\u003e字符串长度len \u0026lt;\u003d 110000"}},{"title":"Output","value":{"format":"HTML","content":"每一行一个整数,对应一组数据,表示该字符串中所包含的最长回文长度。\n\u003cbr\u003e"}},{"title":"Sample Input","value":{"format":"HTML","content":"\u003cpre\u003epppp\npipi\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"HTML","content":"\u003cpre\u003e4\n3\u003c/pre\u003e"}},{"title":"提示","value":{"format":"HTML","content":"\u003cpre\u003e用cin建议关闭同步\n\u003cbr\u003e\n或者建议使用scanf\u003c/pre\u003e"}}]}