Sphere Online Judge

Problem Solvers' Hall of Fame

RANK CC NAME CLASSICAL CHALLENGE SCORE
1 CN [Retired] Blue.Mary 1461.6 (2292) 19.9 (4) 1481.6   
2 RU Oleg Chernyakhovskiy 931.1 (1739) 4.3 (1) 935.4   
3 PL :D 873.6 (1495) 11.0 (2) 884.5   
4 US Jacob Plachta 840.3 (1555) 3.8 (0) 844.0   
5 HU Robert Gerbicz 500.4 (1206) 108.9 (23) 609.4   
6 CN Lox 549.1 (796) 3.7 (0) 552.8   
7 XX Mitch Schwartz 274.0 (603) 273.5 (78) 547.5   
8 CN shihanyuan 496.3 (792) 0.0 (0) 496.3   
9 HR Ivan Kataniĉ 427.8 (948) 1.3 (0) 429.1   
10 HR Stjepan Glavina 414.4 (928) 0.7 (0) 415.1   
11 PL ebd 413.4 (1182) 1.5 (0) 414.9   
12 GB Luke Pebody 404.5 (1045) 7.3 (2) 411.8   
13 IN SWOOSH!!! 351.0 (989) 4.6 (0) 355.7   
14 CN Balrog 340.6 (484) 2.6 (0) 343.3   
15 UA Anton Lunyov 320.8 (687) 8.9 (0) 329.7   
16 CA Andy Y.F. Huang 326.1 (936) 1.1 (0) 327.2   
17 ID (Tjandra Satria Gunawan)(曾毅昆) 284.6 (608) 35.9 (2) 320.5   
18 US Eigenray 299.1 (775) 0.0 (0) 299.1   
19 HK fitcat 290.4 (831) 8.4 (0) 298.7   
20 PL Damian Straszak 294.2 (586) 1.3 (0) 295.5   
21 CN Eternal Answer 289.6 (456) 0.9 (0) 290.5   
22 UA Ehor Nechiporenko 274.5 (542) 13.9 (1) 288.5   
23 TR gordion 268.8 (765) 16.6 (0) 285.4   
24 JP Min_25 273.5 (206) 10.9 (2) 284.5   
25 IN Ravi Kiran 278.7 (907) 3.0 (0) 281.7   
25 CU Shaka Shadows 280.4 (679) 1.3 (0) 281.7   
27 XX Siarhei Kulik 266.3 (465) 5.5 (0) 271.9   
28 BY Gennady Korotkevich 253.6 (705) 13.5 (0) 267.1   
29 XX coup de grace 264.1 (460) 0.0 (0) 264.1   
30 PL Bartek Dudek 252.6 (479) 0.9 (0) 253.6   
31 XX suhang 242.7 (404) 0.0 (0) 242.7   
32 ID Andy William 236.7 (651) 5.7 (0) 242.3   
33 HR Luka Kalinovcic 238.0 (550) 1.6 (0) 239.6   
34 CN Jialin Ouyang 239.4 (1089) 0.0 (0) 239.4   
35 CN sevenkplus 231.3 (347) 7.4 (1) 238.8   
36 CN Xunie J 235.5 (321) 0.0 (0) 235.5   
37 BR Rodolfo Riyoei Goya [USJT] 227.7 (945) 5.6 (0) 233.2   
38 DE numerix 187.1 (641) 40.1 (4) 227.3   
39 PT Miguel Oliveira 222.6 (702) 1.3 (0) 223.9   
40 CU Eddy R. Morales Perez 222.7 (690) 0.4 (0) 223.1   
41 FR legrand 180.0 (665) 40.3 (2) 220.3   
42 CN ymGXX 216.4 (496) 2.4 (0) 218.8   
43 US Michael Egorov 208.2 (778) 7.8 (0) 216.0   
44 IN Pranay 191.5 (824) 13.2 (0) 204.6   
45 CN Xusha J 204.4 (282) 0.0 (0) 204.4   
46 PL Dominik Kempa 195.7 (760) 0.0 (0) 195.7   
47 VN RR 189.1 (603) 4.4 (0) 193.5   
48 PL Jaros³aw Gomu³ka 188.7 (652) 2.1 (0) 190.8   
49 CN shangjingbo 187.8 (383) 0.0 (0) 187.8   
50 DE Adrian Kuegel 168.0 (496) 18.0 (2) 186.0   
51 CN zhj 183.3 (348) 2.4 (0) 185.8   
52 HR Gustav Matula 181.5 (394) 0.5 (0) 182.0   
53 RU Ruslan Sennov 161.1 (656) 20.6 (2) 181.7   
54 ID Stacia Edina Johanna 180.5 (344) 0.2 (0) 180.7   
55 IN Suraj D 179.4 (676) 0.8 (0) 180.2   
56 PL Wojciech Bukowicki 179.0 (746) 0.8 (0) 179.8   
57 IN INSOMNIA 176.9 (657) 1.0 (0) 177.9   
58 BR Carlos Eduardo Rodrigues Alves [USJT] 171.7 (447) 4.5 (0) 176.2   
59 CU Jose Carlos Gonzalez Fernandez[UCI2ndTWF] 169.3 (594) 3.9 (0) 173.3   
60 CN Stilwell 168.5 (222) 4.2 (0) 172.7   
61 UA Spooky 166.4 (722) 5.5 (0) 171.8   
62 CN =====e^(iπ)+1=0===== 167.5 (318) 2.5 (0) 170.0   
63 CN Xuzheng J 169.6 (288) 0.0 (0) 169.6   
64 IN ­Surendra 154.5 (604) 10.7 (0) 165.3   
65 CN Sun Zheng 161.2 (253) 0.2 (0) 161.4   
66 DE Damir Ferizovic 157.5 (554) 2.1 (0) 159.6   
66 IN its_time_to_code 132.9 (385) 26.7 (1) 159.6   
68 CN Xusuo J 158.0 (269) 0.0 (0) 158.0   
69 IN suhash 151.7 (670) 5.3 (0) 157.0   
70 BR Geraldo Avelino [IME-RJ] 156.7 (784) 0.0 (0) 156.7   
71 HR Buda IM (retired) 154.9 (385) 0.8 (0) 155.6   
72 IN Pratham Khandelwal 155.5 (488) 0.0 (0) 155.5   
73 IN Varun Jalan 154.5 (560) 0.3 (0) 154.9   
74 XX Neal Zane 154.1 (454) 0.2 (0) 154.3   
75 IN Gaurav Agarwal 148.4 (623) 5.8 (1) 154.2   
76 ID Ivan Hendrajaya 152.6 (607) 0.0 (0) 152.6   
77 JP fortune cookie 151.2 (502) 1.1 (0) 152.3   
78 CN Hunters Den 151.8 (215) 0.2 (0) 152.0   
79 EG Islam Diaa 151.1 (470) 0.2 (0) 151.3   
80 JP YOSHIDA, Yuichi 138.8 (369) 12.0 (2) 150.7   
81 IN Viplov Jain 149.2 (295) 1.2 (0) 150.4   
82 CN Hellfire Temple 147.7 (181) 2.4 (0) 150.1   
83 XX 149.0 (443) 0.1 (0) 149.1   
84 IN Satyaki Upadhyay 147.0 (579) 1.7 (0) 148.7   
85 NL amaroq 145.2 (545) 1.8 (0) 147.0   
86 CH Alfonso2 Peterssen 138.6 (466) 7.7 (0) 146.3   
87 IN abhijith reddy d 140.1 (585) 5.8 (0) 145.9   
88 ID Agus Sentosa 142.4 (296) 1.0 (0) 143.4   
89 AU darkdieuguerre 138.9 (562) 3.5 (1) 142.4   
90 IN .:: Pratik ::. 137.5 (509) 4.7 (0) 142.2   
90 IN [Lakshman] 133.0 (430) 9.2 (0) 142.2   
92 IN Pranet Verma 138.0 (496) 3.8 (0) 141.7   
93 IN RIVU DAS 115.8 (328) 24.4 (1) 140.2   
94 CN QiZiChao 135.1 (227) 4.7 (1) 139.7   
95 HR s.max 139.1 (234) 0.3 (0) 139.4   
96 CN a14583465 138.2 (187) 0.0 (0) 138.2   
97 HU Noszály Csaba 134.3 (549) 2.9 (0) 137.1   
98 ID Arianto Wibowo 136.7 (377) 0.1 (0) 136.8   
99 NZ Stephen Merriman 125.7 (493) 10.6 (1) 136.2   
100 PL Tywan 126.8 (493) 8.4 (0) 135.2   

These are the official SPOJ standings. Please note that the formulae used for calculating the scores are currently evolving. At present points are awarded to each user as follows:

  • for solving classical problem p: 80/(40+number_of_people_who_have_solved p) points
  • for a top score in any challenge: 3 points,
  • for any lower score in a challenge: (user's_score relative_to_the top_score) points.

Numbers given in brackets beside the scores correspond to the number of solved classical problems and the number of challenges for which the user's best score is also the top score, respectively.

All feedback concerning the methods used for generating statistics is most welcome. Please post remarks in the forum, or mail them directly to our contact address.

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