{"trustable":false,"sections":[{"title":"","value":{"format":"HTML","content":"\u003cstyle 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2Courier%2010%20Pitch%22%3B%7D%0A.MsoChpDefault%0A%09%7Bfont-size%3A10.0pt%3B%7D%0A%20%2F*%20Page%20Definitions%20*%2F%0A%20%40page%20Section1%0A%09%7Bsize%3A8.5in%2011.0in%3B%0A%09margin%3A1.0in%201.0in%201.0in%201.0in%3B%7D%0Adiv.Section1%0A%09%7Bpage%3ASection1%3B%7D%0A%20%2F*%20List%20Definitions%20*%2F%0A%20ol%0A%09%7Bmargin-bottom%3A0in%3B%7D%0Aul%0A%09%7Bmargin-bottom%3A0in%3B%7D%0A%2D%2D%3E--\u003e\u003c/style\u003e\r\n\u003cp\u003e\r\n\t\u003cspan style\u003d\"color:#800000;\"\u003e\u003cspan style\u003d\"font-family:times new roman,times,serif;\"\u003e\u003cstrong\u003e\u003cspan style\u003d\"font-size:22px;\"\u003eIf You Do not know anything about Pi Try This Link : \u003c/span\u003e\u003c/strong\u003e\u003c/span\u003e\u003c/span\u003e\u003cspan style\u003d\"color:#00ffff;\"\u003e\u003cspan style\u003d\"font-family:times new roman,times,serif;\"\u003e\u003cstrong\u003e\u003cspan style\u003d\"font-size:22px;\"\u003e\u003ca href\u003d\"http://en.wikipedia.org/wiki/Pi\"\u003eWikipedia.\u003c/a\u003e\u003c/span\u003e\u003c/strong\u003e\u003c/span\u003e\u003c/span\u003e\u003cspan style\u003d\"font-family:times new roman,times,serif;\"\u003e\u003cstrong\u003e\u003cspan style\u003d\"font-size:22px;\"\u003e\u003c/span\u003e\u003c/strong\u003e\u003c/span\u003e\u003c/p\u003e\r\n\u003cp\u003e\r\n\t\u003cspan style\u003d\"color:#800000;\"\u003e\u003cspan style\u003d\"font-family:times new roman,times,serif;\"\u003e\u003cstrong\u003e\u003cspan style\u003d\"font-size:22px;\"\u003eAnd Try Solving The Problem : \u003c/span\u003e\u003c/strong\u003e\u003c/span\u003e\u003c/span\u003e\u003cspan style\u003d\"font-family:times new roman,times,serif;\"\u003e\u003cstrong\u003e\u003cspan style\u003d\"font-size:22px;\"\u003e\u003ca href\u003d\"http://www.spoj.com/problems/PIVALUE/\"\u003e\u003cspan style\u003d\"color:#008080;\"\u003eValue of Pi\u003c/span\u003e\u003c/a\u003e\u003cspan style\u003d\"color:#008080;\"\u003e\u0026nbsp;\u003c/span\u003e\u003cspan style\u003d\"color:#800000;\"\u003eand \u003c/span\u003e\u003ca href\u003d\"http://www.spoj.com/problems/PIVAL/\"\u003e\u003cspan style\u003d\"color:#008080;\"\u003eDigits of Pi\u003c/span\u003e\u003c/a\u003e\u003c/span\u003e\u003c/strong\u003e\u003c/span\u003e\u003cspan style\u003d\"color:#800000;\"\u003e\u003cspan style\u003d\"font-family:times new roman,times,serif;\"\u003e\u003cstrong\u003e\u003cspan style\u003d\"font-size:22px;\"\u003e. Sorry I couldn\u0026#39;t add those tow problem in the contest for some kind of \u003cspan data-scayt_word\u003d\"Hust\" data-scaytid\u003d\"1\"\u003eHust\u003c/span\u003e\u0026nbsp;bug..\u003c/span\u003e\u003c/strong\u003e\u003c/span\u003e\u003c/span\u003e\u003c/p\u003e\r\n\u003cp\u003e\r\n\t\u0026nbsp;\u003c/p\u003e\r\n\u003cp\u003e\r\n\t\u003cbr /\u003e\r\n\t\u003cspan style\u003d\"font-size: 22px;\"\u003eProblem :\u003c/span\u003e\u003c/p\u003e\r\n\u003cp class\u003d\"MsoNormal\"\u003e\r\n\tA circle is placed perfectly into a square. The term perfectly placed means that each side of the square is touched by the circle, but the circle doesn\u0026#39;t have any overlapping part with the square. See the picture below.\u003c/p\u003e\r\n\u003cp align\u003d\"center\" class\u003d\"MsoNormal\" style\u003d\"text-align:center\"\u003e\r\n\t\u003cimg src\u003d\"http://i61.tinypic.com/15dudzn.png\" style\u003d\"width: 211px; height: 206px;\" /\u003e\u003c/p\u003e\r\n\u003cp class\u003d\"MsoNormal\"\u003e\r\n\tNow you are given the radius of the circle. You have to find the area of the shaded region (blue part). Assume that \u003cb\u003epi \u003d 2 * \u003cspan data-scayt_word\u003d\"acos\" data-scaytid\u003d\"2\"\u003eacos\u003c/span\u003e (0.0) (\u003cspan data-scayt_word\u003d\"acos\" data-scaytid\u003d\"3\"\u003eacos\u003c/span\u003e means \u003cspan data-scayt_word\u003d\"cos\" data-scaytid\u003d\"4\"\u003ecos\u003c/span\u003e inverse)\u003c/b\u003e.\u003c/p\u003e"}},{"title":"Input","value":{"format":"HTML","content":"\u003cp class\u003d\"MsoNormal\"\u003e\r\n\tInput starts with an integer \u003cb\u003eT (\u003c/b\u003e\u003cb\u003e\u0026le; 1000)\u003c/b\u003e, denoting the number of test cases.\u003c/p\u003e\r\n\u003cp class\u003d\"MsoNormal\"\u003e\r\n\tEach case contains a floating point number \u003cb\u003er (0 \u0026lt; r \u0026le; 1000)\u003c/b\u003e denoting the radius of the circle. And you can assume that \u003cb\u003er\u003c/b\u003e contains at most four digits after the decimal point.\u003c/p\u003e"}},{"title":"Output","value":{"format":"HTML","content":"\u003cp class\u003d\"MsoNormal\"\u003e\r\n\tFor each case, print the case number and the shaded area rounded to two places after the decimal point.\u003c/p\u003e"}},{"title":"Sample Input","value":{"format":"HTML","content":"\u003cp class\u003d\"MsoNoSpacing\"\u003e\r\n\t\u003cspan style\u003d\"font-size:12.0pt;font-family:\u0026quot;Courier New\u0026quot;\"\u003e3\u003c/span\u003e\u003cbr /\u003e\r\n\t\u003cspan style\u003d\"font-family: \u0027Courier New\u0027; font-size: 12pt;\"\u003e20.00\u003c/span\u003e\u003cbr /\u003e\r\n\t\u003cspan style\u003d\"font-family: \u0027Courier New\u0027; font-size: 12pt;\"\u003e30.091\u003c/span\u003e\u003cbr /\u003e\r\n\t\u003cspan style\u003d\"font-family: \u0027Courier New\u0027; font-size: 12pt;\"\u003e87.0921\u003c/span\u003e\u003c/p\u003e"}},{"title":"Sample Output","value":{"format":"HTML","content":"\u003cp class\u003d\"MsoNoSpacing\"\u003e\r\n\t\u003cspan style\u003d\"font-size:12.0pt;font-family:\u0026quot;Courier New\u0026quot;\"\u003eCase 1: 343.36\u003c/span\u003e\u003cbr /\u003e\r\n\t\u003cspan style\u003d\"font-family: \u0027Courier New\u0027; font-size: 12pt;\"\u003eCase 2: 777.26\u003c/span\u003e\u003cbr /\u003e\r\n\t\u003cspan style\u003d\"font-family: \u0027Courier New\u0027; font-size: 12pt;\"\u003eCase 3: 6511.05\u003c/span\u003e\u003c/p\u003e"}}]}