Codeforces Alpha Round 21 (Codeforces format)

Solutions are presented as using the least memory and the fastest execution time. It also takes the top 10 most recent solutions from each language. If you want to limit to a specific index, click the "Solved" button and go to that problem.

ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
21 Codeforces Alpha Round 21 (Codeforces format) FINISHED False 7200 454092899 June 28, 2010, 1:05 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 1358 ) B Intersection PROGRAMMING implementation math 2300

B''...

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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