{"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":"\u003cdiv\u003e \n \u003cspan\u003e\u003cspan\u003e\u003cspan\u003e求实数的绝对值。\u003c/span\u003e\u003c/span\u003e\u003c/span\u003e\n\u003c/div\u003e \n\u003cdiv\u003e \n \u003cspan\u003e(注意存在精度较高数据,\u003c/span\u003e \n \u003cspan\u003e\u003cspan\u003e\u003cspan\u003e请放弃float使用double\u003c/span\u003e\u003c/span\u003e)\u003c/span\u003e\n\u003c/div\u003e"}},{"title":"Input","value":{"format":"HTML","content":"\u003cdiv\u003e\n 输入数据有多组,每组占一行,每行包含一个实数。\n\u003c/div\u003e"}},{"title":"Output","value":{"format":"HTML","content":"\u003cdiv\u003e\n 对于每组输入数据,输出它的绝对值,要求每组数据输出一行,结果保留两位小数。\n\u003c/div\u003e"}},{"title":"Sample Input","value":{"format":"HTML","content":"\u003cp\u003e 123\u003c/p\u003e \n\u003cp\u003e -234.00\u003c/p\u003e"}},{"title":"Sample Output","value":{"format":"HTML","content":"\u003cp\u003e 123.00\u003c/p\u003e \n\u003cp\u003e 234.00\u003c/p\u003e"}}]}