{"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":"MD","content":"给你两个大小为n的数组a\u003csub\u003e1,2,3,...n\u003c/sub\u003e和b\u003csub\u003e1,2,3,....n\u003c/sub\u003e, 问你有多少个区间[l,r]\\(1\u003c\u003dl\u003c\u003dr\u003c\u003dn), 使得max{a\u003csub\u003el\u003c/sub\u003e,a\u003csub\u003el+1\u003c/sub\u003e,a\u003csub\u003el+2\u003c/sub\u003e....,a\u003csub\u003er\u003c/sub\u003e}和min{b\u003csub\u003el\u003c/sub\u003e,b\u003csub\u003el+1\u003c/sub\u003e,b\u003csub\u003el+2\u003c/sub\u003e....,b\u003csub\u003er\u003c/sub\u003e}的值相等"}},{"title":"Input","value":{"format":"MD","content":"第一行是一个正整数n,(1\u003c\u003dn\u003c\u003d200,000)\n\n第二行有n个正整数 a \u003csub \u003e1\u003c/sub\u003e, a \u003csub\u003e2\u003c/sub\u003e, ..., a \u003csub \u003e n \u003c/sub\u003e (\u003cspan class\u003d\"tex-span\"\u003e - 10\u003csup\u003e9\u003c/sup\u003e ≤ a \u003csub\u003e i \u003c/sub\u003e ≤ 10\u003csup\u003e9\u003c/sup\u003e\u003c/span\u003e) \n\n第三行有n个正整数 b \u003csub \u003e1\u003c/sub\u003e, b \u003csub\u003e2\u003c/sub\u003e, ..., b \u003csub \u003e n \u003c/sub\u003e (\u003cspan class\u003d\"tex-span\"\u003e - 10\u003csup\u003e9\u003c/sup\u003e ≤ b \u003csub\u003e i \u003c/sub\u003e ≤ 10\u003csup\u003e9\u003c/sup\u003e\u003c/span\u003e) "}},{"title":"Output","value":{"format":"MD","content":"输出满足条件的区间的个数"}},{"title":"Sample Input","value":{"format":"MD","content":"```\n6\n1 2 3 2 1 4\n6 7 1 2 3 2\n```"}},{"title":"Sample Output","value":{"format":"MD","content":"```\n2\n```\n"}},{"title":"Sample Input","value":{"format":"MD","content":"```\n3\n3 3 3\n1 1 1\n```"}},{"title":"Sample Output","value":{"format":"MD","content":"0"}},{"title":"Hint","value":{"format":"MD","content":"样例1解释: \n\n1.l \u003d 4,r \u003d 4 since max{2} \u003d min{2}.\n\n2.l \u003d 4,r \u003d 5 since max{2, 1} \u003d min{2, 3}."}}]}