I can't figure out where my mistake is. Can someone give me some tests? lol Edited by author 21.04.2020 20:37 Edited by author 21.04.2020 20:37 Edited by author 21.04.2020 20:37 Edited by author 21.04.2020 20:37 Edited by author 21.04.2020 20:37 Edited by author 21.04.2020 20:37 Edited by author 21.04.2020 20:37 Edited by author 21.04.2020 20:37 Edited by author 21.04.2020 20:37 Edited by author 21.04.2020 20:37 Edited by author 21.04.2020 20:38 Edited by author 21.04.2020 20:38 Edited by author 21.04.2020 20:38 Edited by author 21.04.2020 20:38 Edited by author 21.04.2020 20:38 Edited by author 21.04.2020 20:38 Edited by author 21.04.2020 20:38 Edited by author 21.04.2020 20:38 Edited by author 21.04.2020 20:38 Edited by author 21.04.2020 20:38 I have 2 questions. 1. As AI Cash asked, can each design have two or more points with the same location? 2. "the prejury wants to find the designs which only differ in rearrangement of points and their affine transformation that doesn't change the orientation" does it mean that two designs (P1, P2, P3, ..., Pm) and (Q1, Q2, Q3, ..., Qm) will be considered same if there is an affine transformation Qi=A*Pi+b for all i such that A is matrix 2x2 that detA>0 ? Thank you from Thailand. :) Edited by author 22.09.2019 20:01 If we consider them as flowers then logically it can't be. But it isn't said explicitly in statement. Walrus, CoSec, melody, Safe Bird, please, give me any hint. My email  Ilya[pnt]Grebnov[at]mail[pnt]ru Valrus, our programs output the same now. i have checked the cases we got wrong answer before, they must be wrong! expecting:) Even i got the correct algorithm to solve it, I still got stuck on case 10.... :( how could i contact you? mine is zhuzeyuan@hotmail.com To avoid it completely, as far as I got, I must use int128:S... My email is dimatsu@rambler.ru Test order was changed. Now test 39 is test 10. I updated old statistics. He is sure the answer is incorrect. your output is better than mine, while mine is better than standard. i am sure i have added a checking part to my program. anyway, i will try to use int128 in the future. Edited by author 18.11.2005 16:10 Not "positively defined" but "with positive determinant" as it is said in russian text, and which is used in correct definition of affine transformation. For example matrix 1 3 2 1 is not positively defined, but has positive determinant. Is this output correct for sample input? 4 5 7 0 4 6 0 2 0 1 3 0 
