{"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":"\u003cp\u003e你的心碎了,我的字符串碎了,但是你总有一天会痊愈的,但是我的字符串一去不复返.给你一个字符串s,我们一次可以删去它的一个不一定连续的回文子序列,\u003cfont color\u003dred\u003e我们要花费尽量少的步数来删除整个字符串.\u003c/font\u003e所以我们到底要多少步?\u003c/p\u003e\n"}},{"title":"Input","value":{"format":"HTML","content":"\u003cfont color\u003dblue\u003e第一行有一个整数T,表示有T组数据。\u003c/font\u003e接下来T行,每行都是字符串s。"}},{"title":"Output","value":{"format":"HTML","content":"\u003cfont size\u003d5\u003e对于每一组数据,输出一行\u003c/font\u003e\u003cimg alt\u003d\"huaji\" src\u003d\"https://gsp0.baidu.com/5aAHeD3nKhI2p27j8IqW0jdnxx1xbK/tb/editor/images/client/image_emoticon25.png\" width\u003d\"30\" height\u003d\"30\"\u003e"}},{"title":"Sample Input","value":{"format":"HTML","content":"\u003cpre\u003e2\naa\nabb\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"HTML","content":"\u003cpre\u003e1\n2\u003c/pre\u003e"}},{"title":"滑稽","value":{"format":"HTML","content":"\u003cpre\u003e要是想了解代码怎么打,请访问下面的网站\u003c/pre\u003e\n\u003ca href\u003d\"https://baidu.com\"\u003e\n \u003cimg alt\u003d\"huaji\" src\u003d\"https://gsp0.baidu.com/5aAHeD3nKhI2p27j8IqW0jdnxx1xbK/tb/editor/images/client/image_emoticon25.png\" width\u003d\"30\" height\u003d\"30\"\u003e\n\u003c/a\u003e"}}]}