Codeforces Alpha Round 21 (Codeforces format)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
21 Codeforces Alpha Round 21 (Codeforces format) FINISHED False 7200 498588880 June 28, 2010, 1:05 p.m.

Problems

Solved
Index
Name
Type
Tags
Community Tag
Rating
( 1579 ) B Intersection PROGRAMMING implementation math 2300

You are given two set of points. The first set is determined by the equation A 1 x + B 1 y + C 1 = 0 , and the second one is determined by the equation A 2 x + B 2 y + C 2 = 0 . Write the program which finds the number of points in the intersection of two given sets. The first line of the input contains three integer numbers A 1 , B 1 , C 1 separated by space. The second line contains three integer numbers A 2 , B 2 , C 2 separated by space. All the numbers are between -100 and 100, inclusive. Print the number of points in the intersection or -1 if there are infinite number of points.

Tutorials

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
7365664 hos.lyric B Aug. 7, 2014, 8:26 a.m. OK D TESTS 136 62 1433600 2300
22190942 upfeed B Nov. 13, 2016, 10:43 a.m. OK Delphi TESTS 140 30 102400 2300
1014004 Depool B Jan. 5, 2012, 10:39 p.m. OK Delphi TESTS 123 30 819200 2300
414711 ruban B April 29, 2011, 3:59 p.m. OK Delphi TESTS 123 30 819200 2300
93438 vlad107 B Nov. 17, 2010, 8:37 p.m. OK Delphi TESTS 123 30 819200 2300
93070 Serega B July 22, 2010, 3:40 p.m. OK Delphi TESTS 123 30 819200 2300
93069 Serega B July 22, 2010, 3:36 p.m. OK Delphi TESTS 123 30 819200 2300
92166 tourist B June 28, 2010, 3:31 p.m. OK Delphi TESTS 123 30 819200 2300
91818 chavit B June 28, 2010, 2:28 p.m. OK Delphi TESTS 123 30 819200 2300
92564 Babanin_Ivan B June 29, 2010, 8:42 a.m. OK Delphi TESTS 123 30 921600 2300
92247 Andrbw B June 28, 2010, 3:55 p.m. OK Delphi TESTS 123 30 921600 2300
91593 kozima B June 28, 2010, 2:01 p.m. OK F# TESTS 123 140 6041600 2300
2865553 ptnk021215 B Jan. 2, 2013, 7:18 a.m. OK FPC TESTS 123 15 0 2300
4400189 triple_e B Sept. 3, 2013, 8:02 a.m. OK FPC TESTS 136 30 0 2300
92611 alger95 B June 29, 2010, 1:17 p.m. OK FPC TESTS 123 30 921600 2300
91589 kuzmichev_dima B June 28, 2010, 2:01 p.m. OK FPC TESTS 123 30 921600 2300
704783 Rubanenko B June 28, 2010, 1:53 p.m. OK FPC TESTS 123 30 1024000 2300
395133 Sereja B April 17, 2011, 4:26 p.m. OK FPC TESTS 123 30 1024000 2300
92968 vilcheuski B July 17, 2010, 5:18 p.m. OK FPC TESTS 123 30 1024000 2300
92409 vilcheuski B June 28, 2010, 7:01 p.m. OK FPC TESTS 123 30 1024000 2300
92282 ChuYuxun B June 28, 2010, 4:15 p.m. OK FPC TESTS 123 30 1024000 2300
92119 Rheni B June 28, 2010, 3:21 p.m. OK FPC TESTS 123 30 1024000 2300
32507820 singh_789 B Nov. 20, 2017, 5:53 p.m. OK GNU C TESTS 140 15 0 2300
3962992 sona_444 B June 26, 2013, 8:47 a.m. OK GNU C TESTS 136 15 0 2300
3859991 Vaibhav B June 12, 2013, 9:51 a.m. OK GNU C TESTS 136 15 0 2300
3789329 niti94 B May 28, 2013, 10:19 p.m. OK GNU C TESTS 136 15 0 2300
3789326 nitin94 B May 28, 2013, 10:17 p.m. OK GNU C TESTS 136 15 0 2300
23358078 vjudge2 B Dec. 27, 2016, 11:33 a.m. OK GNU C TESTS 140 15 1945600 2300
15501683 Don_Vito_Corleone_77 B Jan. 22, 2016, 4:42 p.m. OK GNU C TESTS 136 30 0 2300
14353032 AmantedelaComida B Nov. 20, 2015, 1:41 a.m. OK GNU C TESTS 136 30 0 2300
818070 kawatea B Oct. 29, 2011, 7:22 p.m. OK GNU C TESTS 123 30 1331200 2300
566295 vjudge1 B July 26, 2011, 5:58 a.m. OK GNU C TESTS 123 30 1331200 2300
32507543 singh_789 B Nov. 20, 2017, 5:39 p.m. OK GNU C++ TESTS 140 15 0 2300
29822357 last-phoenix B Aug. 27, 2017, 8:52 a.m. OK GNU C++ TESTS 140 15 0 2300
27264206 Cmise B May 21, 2017, 10:01 a.m. OK GNU C++ TESTS 140 15 0 2300
22589788 Joker1010123 B Nov. 29, 2016, 2:05 a.m. OK GNU C++ TESTS 140 15 0 2300
22222783 vjudge3 B Nov. 15, 2016, 1:06 p.m. OK GNU C++ TESTS 140 15 0 2300
22078125 jackichul B Nov. 6, 2016, 3:39 p.m. OK GNU C++ TESTS 140 15 0 2300
19589361 RNS_CUS B Aug. 3, 2016, 1:42 a.m. OK GNU C++ TESTS 140 15 0 2300
18748371 yingdongyuan B June 27, 2016, 7:59 a.m. OK GNU C++ TESTS 136 15 0 2300
3856343 stevenkplus B June 11, 2013, 7:15 a.m. OK GNU C++ TESTS 136 15 0 2300
3318942 aiiYuu B March 15, 2013, 4:52 a.m. OK GNU C++ TESTS 123 15 0 2300
3088264 lemur B Feb. 10, 2013, 12:43 a.m. OK GNU C++0x TESTS 123 15 0 2300
6545529 hakobyan.tigran B May 4, 2014, 3:54 p.m. OK GNU C++0x TESTS 136 30 0 2300
5701771 atetubou B Jan. 16, 2014, 8:20 a.m. OK GNU C++0x TESTS 136 30 0 2300
4538610 A_Le_K B Sept. 22, 2013, 6:13 p.m. OK GNU C++0x TESTS 136 30 0 2300
670092 Archon.JK B Sept. 6, 2011, 12:32 a.m. OK GNU C++0x TESTS 123 30 1331200 2300
566297 vjudge1 B July 26, 2011, 6:01 a.m. OK GNU C++0x TESTS 123 30 1433600 2300
566305 vjudge2 B July 26, 2011, 6:04 a.m. OK GNU C++0x TESTS 123 30 1433600 2300
8238935 aliasadiiii B Oct. 15, 2014, 3:44 p.m. OK GNU C++0x TESTS 136 30 42086400 2300
8043740 vjudge1 B Oct. 1, 2014, 7:03 a.m. OK GNU C++0x TESTS 136 60 0 2300
8693154 nosy B Nov. 14, 2014, 12:59 p.m. OK GNU C++0x TESTS 136 60 0 2300
63406478 vjudge5 B Oct. 25, 2019, 8:41 p.m. OK GNU C11 TESTS 140 31 0 2300
63570815 vjudge2 B Oct. 27, 2019, 3:53 p.m. OK GNU C11 TESTS 140 31 0 2300
63624219 vjudge4 B Oct. 28, 2019, 2:16 a.m. OK GNU C11 TESTS 140 31 0 2300
49155470 namratha_253 B Jan. 29, 2019, 1:37 p.m. OK GNU C11 TESTS 140 31 0 2300
22475790 IPRIT B Nov. 24, 2016, 5:25 p.m. OK GNU C++11 TESTS 140 15 0 2300
20949863 ibrahim804 B Sept. 27, 2016, 3:16 p.m. OK GNU C++11 TESTS 140 15 0 2300
19300002 irkstepanov B July 21, 2016, 10:42 a.m. OK GNU C++11 TESTS 140 15 0 2300
19286295 fiorella1207 B July 20, 2016, 6:21 p.m. OK GNU C++11 TESTS 140 15 0 2300
26884081 BIOE B May 5, 2017, 3:32 p.m. OK GNU C++11 TESTS 140 15 0 2300
27435927 artur.socha B May 29, 2017, 8:38 p.m. OK GNU C++11 TESTS 140 15 0 2300
30934107 bonnyjannatuljahan B Oct. 2, 2017, 5:51 a.m. OK GNU C++11 TESTS 140 15 0 2300
34659523 Georgia_001 B Jan. 29, 2018, 11:39 a.m. OK GNU C++11 TESTS 140 15 1843200 2300
34516393 yangshuang B Jan. 24, 2018, 12:29 p.m. OK GNU C++11 TESTS 140 15 1843200 2300
36030880 C..C B March 7, 2018, 1:36 a.m. OK GNU C++11 TESTS 140 15 1843200 2300
22178514 12355 B Nov. 12, 2016, 1:18 p.m. OK GNU C++14 TESTS 140 15 0 2300
31217522 waynetuinfor B Oct. 11, 2017, 1:28 p.m. OK GNU C++14 TESTS 140 15 0 2300
30986748 Stronger2020 B Oct. 4, 2017, 8:11 a.m. OK GNU C++14 TESTS 140 15 0 2300
30125859 iLoveIOI B Sept. 6, 2017, 8:08 a.m. OK GNU C++14 TESTS 140 15 0 2300
29902499 vjudge3 B Aug. 29, 2017, 8:39 p.m. OK GNU C++14 TESTS 140 15 0 2300
29902496 andwho B Aug. 29, 2017, 8:39 p.m. OK GNU C++14 TESTS 140 15 0 2300
27747546 Juniorquin B June 13, 2017, 2:41 a.m. OK GNU C++14 TESTS 140 15 0 2300
27549108 boook B June 3, 2017, 4:51 p.m. OK GNU C++14 TESTS 140 15 0 2300
27123359 z_karaulashvili B May 15, 2017, 2:10 p.m. OK GNU C++14 TESTS 140 15 0 2300
26947647 .I. B May 7, 2017, 10:38 p.m. OK GNU C++14 TESTS 140 15 0 2300
59904401 rainbowbunny B Sept. 2, 2019, 2:47 p.m. OK GNU C++17 TESTS 140 31 0 2300
59500681 Phortox B Aug. 26, 2019, 2:34 a.m. OK GNU C++17 TESTS 140 31 0 2300
57463871 watchman B July 21, 2019, 2:46 p.m. OK GNU C++17 TESTS 140 31 0 2300
53697728 saghe_talaii B May 3, 2019, 8:39 a.m. OK GNU C++17 TESTS 140 31 0 2300
49863063 rohanrko96.6 B Feb. 13, 2019, 10:39 a.m. OK GNU C++17 TESTS 140 31 0 2300
48203460 vjudge1 B Jan. 11, 2019, 7:14 a.m. OK GNU C++17 TESTS 140 31 0 2300
60918625 rhea_20 B Sept. 20, 2019, 9:30 a.m. OK GNU C++17 TESTS 140 31 0 2300
61867992 yshkpr B Oct. 4, 2019, 5:10 p.m. OK GNU C++17 TESTS 140 31 0 2300
68366679 meetu1902 B Jan. 7, 2020, 4:14 p.m. OK GNU C++17 TESTS 140 31 0 2300
69554742 vjudge1 B Jan. 26, 2020, 8:17 a.m. OK GNU C++17 TESTS 140 31 0 2300
38620837 WangJialei B May 26, 2018, 2:01 a.m. OK Go TESTS 140 46 307200 2300
10251586 Eeyore B March 12, 2015, 8:36 p.m. OK Go TESTS 136 62 0 2300
6157364 erikr B March 26, 2014, 8:31 p.m. OK Haskell TESTS 136 30 102400 2300
2512734 DimsFromDergachy B Nov. 5, 2012, 9:08 p.m. OK Haskell TESTS 123 31 0 2300
92245 shindo B June 28, 2010, 3:54 p.m. OK Java 6 TESTS 123 60 42905600 2300
92494 S.Yesipenko B June 29, 2010, 6:04 a.m. OK Java 6 TESTS 123 80 42905600 2300
92427 mohamed.gaber B June 28, 2010, 8:38 p.m. OK Java 6 TESTS 123 80 42905600 2300
92337 Xazker B June 28, 2010, 5:10 p.m. OK Java 6 TESTS 123 80 42905600 2300
92177 ivan.popelyshev B June 28, 2010, 3:33 p.m. OK Java 6 TESTS 123 80 42905600 2300
92132 swcai B June 28, 2010, 3:23 p.m. OK Java 6 TESTS 123 80 42905600 2300
91939 Kandyman B June 28, 2010, 2:43 p.m. OK Java 6 TESTS 123 80 42905600 2300
91635 alexey.enkov B June 28, 2010, 2:06 p.m. OK Java 6 TESTS 123 80 42905600 2300
93331 anhdt B Sept. 2, 2010, 8:08 a.m. OK Java 6 TESTS 123 80 42905600 2300
92554 artie B June 29, 2010, 8:32 a.m. OK Java 6 TESTS 123 80 42905600 2300
6420934 HassanRezk B April 19, 2014, 7:38 p.m. OK Java 7 TESTS 136 154 0 2300
5271226 cupcup B Nov. 27, 2013, 11:42 a.m. OK Java 7 TESTS 136 156 0 2300
4326863 DoublePointer B Aug. 22, 2013, 10:57 p.m. OK Java 7 TESTS 136 156 0 2300
1986885 ivmsg B Aug. 6, 2012, 5:25 p.m. OK Java 7 TESTS 123 160 45158400 2300
1920812 kanhabhu B July 21, 2012, 8:38 p.m. OK Java 7 TESTS 123 170 45056000 2300
12094013 mkirsche B July 17, 2015, 10:25 a.m. OK Java 7 TESTS 136 186 0 2300
4407587 Zyflair B Sept. 5, 2013, 2:07 a.m. OK Java 7 TESTS 136 186 0 2300
4278272 ssohn B Aug. 14, 2013, 2:21 p.m. OK Java 7 TESTS 136 186 0 2300
17285217 alibaba B April 12, 2016, 3:09 a.m. OK Java 7 TESTS 136 218 0 2300
6396805 MostafaAbdullah B April 17, 2014, 8:14 p.m. OK Java 7 TESTS 136 622 0 2300
55225500 mennafadali B June 7, 2019, 12:43 a.m. OK Java 8 TESTS 140 109 0 2300
28350993 Ahmad_Elsagheer B July 7, 2017, 2:11 p.m. OK Java 8 TESTS 140 109 20172800 2300
28543583 Killer45 B July 14, 2017, 8:58 a.m. OK Java 8 TESTS 140 109 20582400 2300
33490705 Zer0Point B Dec. 21, 2017, 9:12 p.m. OK Java 8 TESTS 140 124 20684800 2300
39048195 Mazen_Tarek B June 8, 2018, 2:04 p.m. OK Java 8 TESTS 140 139 0 2300
37376414 totallynotan B April 16, 2018, 3:04 p.m. OK Java 8 TESTS 140 139 20684800 2300
38946980 amnesiac_dusk B June 4, 2018, 2:03 p.m. OK Java 8 TESTS 140 140 20275200 2300
28803558 TripToAzerbaijan B July 23, 2017, 2:53 p.m. OK Java 8 TESTS 140 140 20889600 2300
33915703 raz72 B Jan. 5, 2018, 5:13 a.m. OK Java 8 TESTS 140 140 20992000 2300
28308368 vanguard7 B July 5, 2017, 4:31 p.m. OK Java 8 TESTS 140 155 20889600 2300
15962110 agat00 B Feb. 11, 2016, 6:38 p.m. OK JavaScript TESTS 136 62 0 2300
39958889 fpdrot B July 4, 2018, 2:45 p.m. OK Kotlin TESTS 140 171 102400 2300
69469477 kartoxa B Jan. 24, 2020, 2:02 p.m. OK Mono C# TESTS 140 62 0 2300
92284 kodec B June 28, 2010, 4:16 p.m. OK Mono C# TESTS 123 110 5939200 2300
513212 wrong B June 28, 2011, 3:26 p.m. OK Mono C# TESTS 123 130 5632000 2300
92154 fujiyama B June 28, 2010, 3:28 p.m. OK Mono C# TESTS 123 130 5939200 2300
92938 Hadi_Asiaie B July 9, 2010, 1:22 p.m. OK Mono C# TESTS 123 130 5939200 2300
18221838 azukun B June 2, 2016, 6:36 p.m. OK MS C# TESTS 136 77 11571200 2300
22399319 polphit B Nov. 22, 2016, 8:47 a.m. OK MS C# TESTS 140 78 102400 2300
2799456 numitus B Dec. 20, 2012, 5:20 p.m. OK MS C++ TESTS 123 15 0 2300
3671369 goodhope B May 5, 2013, 6:44 a.m. OK MS C++ TESTS 123 15 0 2300
3933302 dolboeb B June 21, 2013, 6:02 p.m. OK MS C++ TESTS 136 15 0 2300
3078489 abistrigova B Feb. 6, 2013, 5:18 p.m. OK MS C++ TESTS 123 15 0 2300
23616198 vjudge3 B Jan. 7, 2017, 4 a.m. OK MS C++ TESTS 140 15 2048000 2300
34219588 SoniX B Jan. 16, 2018, 11:12 a.m. OK MS C++ TESTS 140 15 2048000 2300
34040329 duongbp1990 B Jan. 9, 2018, 4:38 a.m. OK MS C++ TESTS 140 15 2048000 2300
23784591 Tampere B Jan. 13, 2017, 12:46 p.m. OK MS C++ TESTS 140 15 2048000 2300
17685285 vjudge4 B May 2, 2016, 6:35 a.m. OK MS C++ TESTS 136 15 2252800 2300
21106494 bekatastemyr B Oct. 2, 2016, 6:03 a.m. OK MS C++ TESTS 140 30 0 2300
64914878 Saber4096 B Nov. 15, 2019, 3:15 a.m. OK MS C++ 2017 TESTS 140 46 409600 2300
8332266 ShingRay B Oct. 20, 2014, 3:13 p.m. OK Ocaml TESTS 136 780 0 2300
25111466 Noureldin B Feb. 28, 2017, 10:06 p.m. OK PyPy 2 TESTS 140 77 22016000 2300
37832142 YESMAths B May 2, 2018, 6:22 a.m. OK PyPy 3 TESTS 140 109 21401600 2300
63402977 vjudge1 B Oct. 25, 2019, 7:05 p.m. OK PyPy 3 TESTS 140 140 0 2300
63404604 vjudge2 B Oct. 25, 2019, 7:44 p.m. OK PyPy 3 TESTS 140 140 0 2300
63404155 vjudge1 B Oct. 25, 2019, 7:32 p.m. OK PyPy 3 TESTS 140 140 102400 2300
63517507 vjudge1 B Oct. 27, 2019, 1:42 a.m. OK PyPy 3 TESTS 140 155 0 2300
63404631 johnpm B Oct. 25, 2019, 7:45 p.m. OK PyPy 3 TESTS 140 155 102400 2300
68441703 smoke_bellew B Jan. 9, 2020, 11:11 a.m. OK PyPy 3 TESTS 140 171 0 2300
268075 ftiasch B Jan. 31, 2011, 4:52 a.m. OK Python 2 TESTS 123 60 2764800 2300
92946 mib B July 11, 2010, 11:23 a.m. OK Python 2 TESTS 123 60 2764800 2300
360982 A.K.Goharshady B March 28, 2011, 2:14 p.m. OK Python 2 TESTS 123 60 2867200 2300
1111679 THCDUSMAN B Jan. 23, 2012, 3:09 a.m. OK Python 2 TESTS 123 60 2867200 2300
1099404 Array1024 B Jan. 21, 2012, 3:16 p.m. OK Python 2 TESTS 123 60 2867200 2300
566317 compales2 B July 26, 2011, 6:21 a.m. OK Python 2 TESTS 123 60 2867200 2300
360983 A.K.Goharshady B March 28, 2011, 2:15 p.m. OK Python 2 TESTS 123 60 2867200 2300
322625 lyrics B March 6, 2011, 3:06 p.m. OK Python 2 TESTS 123 60 2867200 2300
322603 lyrics B March 6, 2011, 2:49 p.m. OK Python 2 TESTS 123 60 2867200 2300
35848258 ______u______ B March 2, 2018, 4:56 p.m. OK Python 2 TESTS 140 62 4608000 2300
24671176 sbandjohn B Feb. 14, 2017, 1:26 p.m. OK Python 3 TESTS 140 62 4915200 2300
34617774 nhungle71 B Jan. 27, 2018, 9:03 p.m. OK Python 3 TESTS 140 62 5632000 2300
28682582 mohit28rawat B July 19, 2017, 3:14 a.m. OK Python 3 TESTS 140 77 4608000 2300
17814865 zhangsen1121 B May 9, 2016, 1:59 a.m. OK Python 3 TESTS 136 77 5120000 2300
34619395 nhungle71 B Jan. 27, 2018, 11:09 p.m. OK Python 3 TESTS 140 77 5632000 2300
63563785 vjudge5 B Oct. 27, 2019, 3:12 p.m. OK Python 3 TESTS 140 109 0 2300
63403526 vjudge1 B Oct. 25, 2019, 7:18 p.m. OK Python 3 TESTS 140 109 0 2300
63401258 vjudge1 B Oct. 25, 2019, 6:26 p.m. OK Python 3 TESTS 140 109 0 2300
45131410 annoying B Oct. 31, 2018, 10:31 a.m. OK Python 3 TESTS 140 109 0 2300
63622402 vjudge5 B Oct. 28, 2019, 12:29 a.m. OK Python 3 TESTS 140 109 307200 2300
92759 DNNX B July 1, 2010, 10:10 p.m. OK Ruby TESTS 123 60 3891200 2300
92588 mipt.vi002 B June 29, 2010, 11:39 a.m. OK Ruby TESTS 123 80 4300800 2300
92777 yoshibo- B July 2, 2010, 1:51 p.m. OK Ruby TESTS 123 90 4300800 2300
6255880 atubo B April 4, 2014, 5:43 a.m. OK Ruby TESTS 136 124 102400 2300
7511070 mysterion B Aug. 19, 2014, 7:02 p.m. OK Scala TESTS 136 156 0 2300

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