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Обсуждение задачи 1754. Взрыв в пирамидеdie_young WA#25 // Задача 1754. Взрыв в пирамиде 6 авг 2018 17:56 Had problem with 25th test because of integer overflow. My program used int64_t which was not enough with my approach. Casting computations to double hepled me. b108 WA#8 [1] // Задача 1754. Взрыв в пирамиде 27 янв 2014 21:31 If you have WA#8 then check that m >= h alp Re: WA#8 // Задача 1754. Взрыв в пирамиде 19 май 2014 20:25 Thanks a lot. if m<h then writeln('NO'). xurshid_n WA#4 Help, me !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! [3] // Задача 1754. Взрыв в пирамиде 15 мар 2010 19:29 What is trick? Moonstone Re: WA#4 Help, me !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! // Задача 1754. Взрыв в пирамиде 25 июн 2010 15:14 Use 64-bit integers to calculate coeffitients A, B, C, D of plane equation Ax + By + Cz + D = 0. Edited by author 25.06.2010 15:14 casey Re: WA#4 Help, me !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! // Задача 1754. Взрыв в пирамиде 2 ноя 2011 14:50 For people in the future - test 4 is the case of the sphere touching the floor. † SiriuS † [TWYT Union] Re: WA#4 Help, me !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! // Задача 1754. Взрыв в пирамиде 7 апр 2014 20:09 It's when h >= H. Ripatti [Ufa] to admins: please add this test [1] // Задача 1754. Взрыв в пирамиде 29 ноя 2010 23:23 del Edited by author 06.12.2010 14:41 Sandro (USU) Your test was added. Thank you. (-) // Задача 1754. Взрыв в пирамиде 6 дек 2010 11:53 KALO No subject // Задача 1754. Взрыв в пирамиде 15 ноя 2010 12:41 At some test can be overflow of int64 type. Edited by author 27.01.2011 07:01 ASK hint // Задача 1754. Взрыв в пирамиде 14 ноя 2010 18:19 It can be solved with integer-only arithmetic without divisions: sphere of radius r from D in tetrahedron ABCD touches ABC if sqr(v6(a,b,c,d)) <= sqr(r) * s4(a,b,c), where v6 is 6 times volume of the tetrahedron and s4 is 4 times area squared (all easily calculated with vector arithmetic), but you will get out of long long by this, so use v6(a,b,c,d) <= r * sqrt((double)s4(a,b,c)) instead. Edited by author 14.11.2010 19:21 Edited by author 14.11.2010 19:22 GunnERs Test24 // Задача 1754. Взрыв в пирамиде 10 авг 2010 20:37 Any trick on Test24? xurshid_n Quesion // Задача 1754. Взрыв в пирамиде 23 мар 2010 22:56 Xot kto nibud, skajite, chto takoe sluchaet test13
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