{"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":"给你一个元素个数为\u003cstrong\u003en\u003c/strong\u003e的数组a , 和一个整数s.(保证n为奇数 。)\u003cbr\u003e\n\u003cbr\u003e\n你可以将数组中的任一个数字+1或者-1(同一个数字可以做任意多次操作),请问你最少需要做多少次这样的操作,才能使得这n个数字的中位数等于s.\u003cbr\u003e\n\u003cbr\u003e\n请你输出这个最少的操作次数。"}},{"title":"Input","value":{"format":"HTML","content":"输入的第一行是两个整数n,s.(1\u003c\u003dn\u003c\u003d2*10^5,1\u003c\u003ds\u003c\u003d10^9)\u003cbr\u003e\n第二行是n个整数a[1..n](1\u003c\u003dai\u003c\u003d10^9).\u003cbr\u003e\n保证n为\u003cstrong\u003e奇数。\u003c/strong\u003e"}},{"title":"Output","value":{"format":"HTML","content":"输出只有一行,即最少的操作次数。"}},{"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 8\u003cbr\u003e6 5 8\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\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\u003e7 20\u003cbr\u003e21 15 12 11 20 19 12\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\u003e6\u003c/pre\u003e\n \u003c/div\u003e\n\u003c/div\u003e"}},{"title":"备注","value":{"format":"HTML","content":"请注意编译器的选择,可以选择GNU G++11 5.1.0"}}]}