{"trustable":false,"prependHtml":"\u003cstyle type\u003d\u0027text/css\u0027\u003e\n .input, .output {\n border: 1px solid #888888;\n }\n .output {\n margin-bottom: 1em;\n position: relative;\n top: -1px;\n }\n .output pre, .input pre {\n background-color: #EFEFEF;\n line-height: 1.25em;\n margin: 0;\n padding: 0.25em;\n }\n \u003c/style\u003e\n \u003clink rel\u003d\"stylesheet\" href\u003d\"//codeforces.org/s/96598/css/problem-statement.css\" type\u003d\"text/css\" /\u003e\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 type\u003d\"text/javascript\" async src\u003d\"https://mathjax.codeforces.org/MathJax.js?config\u003dTeX-AMS_HTML-full\"\u003e\u003c/script\u003e","sections":[{"title":"","value":{"format":"HTML","content":"有两种字符串 $s,t$。长度分别为 $n,m$。现在需要在 $s$ 里面有序地选出 $k$ 个子串,且在 $t$ 中出现的顺序与这 $k$ 个子串的顺序相同。\u003cbr\u003e求这 $k$ 个子串最大的长度和。\u003cbr\u003e\n\n$n,m≤1000,k≤10$"}},{"title":"Input","value":{"format":"HTML","content":"输入的第一行包含三个整数 $n,m,k$ \u003cbr\u003e\n\n输入的第二行包含字符串 $s$,由小写英文字母组成。 \u003cbr\u003e\n\n输入的第三行包含字符串 $t$,由小写英文字母组成。 \u003cbr\u003e\n\n"}},{"title":"Output","value":{"format":"HTML","content":"输出这 $k$ 个子串最大的长度和"}},{"title":"Examples","value":{"format":"HTML","content":"\u003cdiv class\u003d\"sample-test\"\u003e\n \u003cdiv class\u003d\"input\"\u003e\n \u003cdiv class\u003d\"title\"\u003e\n Input\n \u003c/div\u003e\n \u003cpre\u003e3 2 2\u003cbr\u003eabc\u003cbr\u003eab\u003cbr\u003e\u003c/pre\u003e\n \u003c/div\u003e\n \u003cdiv class\u003d\"output\"\u003e\n \u003cdiv class\u003d\"title\"\u003e\n Output\n \u003c/div\u003e\n \u003cpre\u003e2\u003cbr\u003e\u003c/pre\u003e\n \u003c/div\u003e\n \u003cdiv class\u003d\"input\"\u003e\n \u003cdiv class\u003d\"title\"\u003e\n Input\n \u003c/div\u003e\n \u003cpre\u003e9 12 4\u003cbr\u003ebbaaababb\u003cbr\u003eabbbabbaaaba\u003cbr\u003e\u003c/pre\u003e\n \u003c/div\u003e\n \u003cdiv class\u003d\"output\"\u003e\n \u003cdiv class\u003d\"title\"\u003e\n Output\n \u003c/div\u003e\n \u003cpre\u003e7\u003cbr\u003e\u003c/pre\u003e\n \u003c/div\u003e\n\u003c/div\u003e"}},{"title":"Note","value":{"format":"HTML","content":"保证至少存在一个期望的序列。\n\u003cp\u003e样例2图示:\u003c/p\u003e\n\u003ccenter\u003e \n \u003cimg class\u003d\"tex-graphics\" src\u003d\"CDN_BASE_URL/c375c90b08aab1b0220b4ba1ae908ad4?v\u003d1640415197\" style\u003d\"max-width: 100.0%;max-height: 100.0%;\"\u003e\n\u003c/center\u003e"}}]}