Codeforces Beta Round 80 (Div. 1 Only)

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
103 Codeforces Beta Round 80 (Div. 1 Only) FINISHED False 7200 425242751 Aug. 7, 2011, 11 a.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 969 ) C Russian Roulette PROGRAMMING constructive algorithms greedy 1900

B'After all the events in Orlando we all know, Sasha and Roma decided to find out who is still the team 's biggest loser. Thankfully, Masha found somewhere a revolver with a rotating cylinder of n bullet slots able to contain exactly k bullets, now the boys have a chance to resolve the problem once and for all. Sasha selects any k out of n slots he wishes and puts bullets there. Roma spins the cylinder so that every of n possible cylinder 's shifts is equiprobable. Then the game starts, the players take turns, Sasha starts: he puts the gun to his head and shoots. If there was no bullet in front of the trigger, the cylinder shifts by one position and the weapon is given to Roma for make the same move. The game continues until someone is shot, the survivor is the winner. Sasha does not want to lose, so he must choose slots for bullets in such a way as to minimize the probability of its own loss. Of all the possible variant he wants to select the lexicographically minimal one, where an empty slot is lexicographically less than a charged one. More formally, the cylinder of n bullet slots able to contain k bullets can be represented as a string of n characters. Exactly k of them are "X" (charged slots) and the others are "." (uncharged slots). Let us describe the process of a shot. Suppose that the trigger is in front of the first character of the string (the first slot). If a shot doesn 't kill anyone and the cylinder shifts, then the string shifts left. So the first character becomes the last one, the second character becomes the first one, and so on. But the trigger doesn 't move. It will be in front of the first character of the resulting string. Among all the strings that give the minimal probability of loss, Sasha choose the lexicographically minimal one. According to this very string, he charges the gun. You have to help Sasha to charge the gun. For that, each xi query must be answered: is there a bullet in the positions xi? The first line contains three i'...

Tutorials

Tutorial

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
4267385 Misha100896 C Aug. 11, 2013, 9:44 p.m. OK Delphi TESTS 70 30 0 1900
600119 Nikolai C Aug. 9, 2011, 9:47 a.m. OK Delphi TESTS 70 30 819200 1900
1382024 zanoes C March 20, 2012, 1:42 p.m. OK Delphi TESTS 70 30 819200 1900
601517 Depool C Aug. 10, 2011, 8:04 a.m. OK Delphi TESTS 70 30 819200 1900
595053 watson C Aug. 7, 2011, 12:50 p.m. OK Delphi TESTS 70 30 921600 1900
599166 ruban C Aug. 8, 2011, 4:21 p.m. OK Delphi TESTS 70 30 921600 1900
598242 alexander-nsk94 C Aug. 8, 2011, 9:37 a.m. OK Delphi TESTS 70 30 921600 1900
594251 kontr C Aug. 7, 2011, 12:30 p.m. OK Delphi TESTS 70 30 921600 1900
593200 sankear C Aug. 7, 2011, 12:03 p.m. OK Delphi TESTS 70 30 2969600 1900
863401 Shapo C Nov. 14, 2011, 1:56 p.m. OK Delphi TESTS 70 50 921600 1900
3469615 Um_nik C April 3, 2013, 3:19 p.m. OK FPC TESTS 70 15 0 1900
639952 vlad107 C Aug. 27, 2011, 11:56 a.m. OK FPC TESTS 70 30 1024000 1900
1388500 sillycross C March 23, 2012, 6:57 a.m. OK FPC TESTS 70 30 1024000 1900
890444 coolinging C Nov. 25, 2011, 5:17 a.m. OK FPC TESTS 70 30 1024000 1900
739419 giongto35 C Oct. 6, 2011, 12:21 p.m. OK FPC TESTS 70 30 1024000 1900
595848 xujie C Aug. 7, 2011, 2:09 p.m. OK FPC TESTS 70 30 1024000 1900
595594 Sereja C Aug. 7, 2011, 1:53 p.m. OK FPC TESTS 70 30 1024000 1900
593287 Sereja C Aug. 7, 2011, 12:05 p.m. OK FPC TESTS 70 30 1024000 1900
750877 superpear C Oct. 8, 2011, 11:59 a.m. OK FPC TESTS 70 30 1126400 1900
595931 ruban C Aug. 7, 2011, 2:24 p.m. OK FPC TESTS 70 30 1126400 1900
990608 Sender C Dec. 29, 2011, 9:15 a.m. OK GNU C TESTS 70 30 1331200 1900
753710 kawatea C Oct. 10, 2011, 5:23 a.m. OK GNU C TESTS 70 30 1331200 1900
595587 eduardische C Aug. 7, 2011, 1:53 p.m. OK GNU C TESTS 70 30 1331200 1900
34941420 uday_170030900 C Feb. 5, 2018, 10:56 a.m. OK GNU C TESTS 70 30 1843200 1900
4031823 nealzane C July 6, 2013, 4:44 p.m. OK GNU C++ TESTS 70 15 0 1900
3917584 ShadowSong C June 19, 2013, 12:48 p.m. OK GNU C++ TESTS 70 15 0 1900
3555231 vici C April 17, 2013, 7:30 a.m. OK GNU C++ TESTS 70 15 0 1900
2958134 vjudge5 C Jan. 19, 2013, 2:27 a.m. OK GNU C++ TESTS 70 15 0 1900
15831966 vjudge2 C Feb. 5, 2016, 7:15 p.m. OK GNU C++ TESTS 70 30 0 1900
18988339 Tiny C July 9, 2016, 3:26 p.m. OK GNU C++ TESTS 70 30 0 1900
15831939 PedramAghazadeh C Feb. 5, 2016, 7:13 p.m. OK GNU C++ TESTS 70 30 0 1900
15142004 HappyNewYearMike C Dec. 31, 2015, 10:01 p.m. OK GNU C++ TESTS 70 30 0 1900
15080795 vjudge4 C Dec. 29, 2015, 7:19 a.m. OK GNU C++ TESTS 70 30 0 1900
14995175 vjudge5 C Dec. 24, 2015, 9 p.m. OK GNU C++ TESTS 70 30 0 1900
655981 Archon.JK C Sept. 2, 2011, 2:03 p.m. OK GNU C++0x TESTS 70 30 1331200 1900
873415 PattS C Nov. 16, 2011, 8:34 a.m. OK GNU C++0x TESTS 70 30 1433600 1900
597779 package.zaic C Aug. 8, 2011, 6:24 a.m. OK GNU C++0x TESTS 70 30 1433600 1900
596196 subscriber C Aug. 7, 2011, 2:45 p.m. OK GNU C++0x TESTS 70 30 1433600 1900
596033 siuvit C Aug. 7, 2011, 2:30 p.m. OK GNU C++0x TESTS 70 30 1433600 1900
595622 kamranm C Aug. 7, 2011, 1:54 p.m. OK GNU C++0x TESTS 70 30 1433600 1900
594383 kamranm C Aug. 7, 2011, 12:33 p.m. OK GNU C++0x TESTS 70 30 1433600 1900
6646761 marat.snowbear C May 18, 2014, 2:37 a.m. OK GNU C++0x TESTS 70 60 0 1900
10175710 SWATMaD C March 6, 2015, 10:43 a.m. OK GNU C++0x TESTS 70 62 0 1900
9561837 BigBag C Jan. 26, 2015, 3:07 p.m. OK GNU C++0x TESTS 70 62 0 1900
26035799 magieNoire C March 31, 2017, 8:43 p.m. OK GNU C11 TESTS 70 62 1945600 1900
27716329 423555290 C June 11, 2017, 6:57 a.m. OK GNU C++11 TESTS 70 30 0 1900
19458041 a540524095 C July 28, 2016, 9:01 a.m. OK GNU C++11 TESTS 70 30 0 1900
15728690 vjudge5 C Feb. 1, 2016, 10:10 a.m. OK GNU C++11 TESTS 70 30 0 1900
15344836 dkjsfkhg C Jan. 14, 2016, 1:33 p.m. OK GNU C++11 TESTS 70 30 0 1900
15059636 Batman C Dec. 27, 2015, 5:44 p.m. OK GNU C++11 TESTS 70 30 0 1900
14995169 Mohammad.Sj C Dec. 24, 2015, 8:59 p.m. OK GNU C++11 TESTS 70 30 0 1900
14908862 vjudge3 C Dec. 21, 2015, 8:34 a.m. OK GNU C++11 TESTS 70 30 0 1900
14908851 Navick C Dec. 21, 2015, 8:33 a.m. OK GNU C++11 TESTS 70 30 0 1900
14904490 kastarika C Dec. 20, 2015, 8:31 p.m. OK GNU C++11 TESTS 70 30 0 1900
21799577 newbiek92 C Oct. 26, 2016, 3:58 p.m. OK GNU C++11 TESTS 70 30 0 1900
27161743 vjudge3 C May 16, 2017, 2:26 p.m. OK GNU C++14 TESTS 70 30 0 1900
27161718 ConnorZhong C May 16, 2017, 2:25 p.m. OK GNU C++14 TESTS 70 30 0 1900
32119237 Mahi1704 C Nov. 7, 2017, 12:39 p.m. OK GNU C++14 TESTS 70 30 0 1900
36083352 loyolman C March 8, 2018, 10:56 p.m. OK GNU C++14 TESTS 70 30 1945600 1900
32986137 wewark C Dec. 6, 2017, 7:47 p.m. OK GNU C++14 TESTS 70 30 1945600 1900
32932379 vamsi3 C Dec. 4, 2017, 6:31 p.m. OK GNU C++14 TESTS 70 30 1945600 1900
31605826 jvj_iit C Oct. 22, 2017, 1:57 p.m. OK GNU C++14 TESTS 70 30 1945600 1900
26814935 vjudge3 C May 3, 2017, 8:07 a.m. OK GNU C++14 TESTS 70 30 1945600 1900
25393965 Neverknow C March 11, 2017, 5:45 a.m. OK GNU C++14 TESTS 70 30 1945600 1900
24269554 KhaledKEE C Jan. 30, 2017, 2:34 p.m. OK GNU C++14 TESTS 70 30 1945600 1900
69403449 mahdi.hasnat C Jan. 23, 2020, 10 a.m. OK GNU C++17 TESTS 70 62 0 1900
69297921 Pippinpaddleopsicopolis C Jan. 22, 2020, 12:52 p.m. OK GNU C++17 TESTS 70 62 0 1900
59899603 .I. C Sept. 2, 2019, 1:14 p.m. OK GNU C++17 TESTS 70 62 0 1900
55671488 Photon_ C June 17, 2019, 7:51 a.m. OK GNU C++17 TESTS 70 62 0 1900
55324435 aaryandosaj C June 9, 2019, 7:06 a.m. OK GNU C++17 TESTS 70 62 0 1900
52890134 DanWarren C April 17, 2019, 7:27 a.m. OK GNU C++17 TESTS 70 62 0 1900
49994571 abhishek_20123 C Feb. 16, 2019, 2:19 p.m. OK GNU C++17 TESTS 70 62 0 1900
47315721 Shizuo C Dec. 21, 2018, 3:06 a.m. OK GNU C++17 TESTS 70 62 0 1900
47260992 karansiwach360 C Dec. 19, 2018, 12:22 p.m. OK GNU C++17 TESTS 70 62 0 1900
69589089 ffao C Jan. 26, 2020, 9:32 p.m. OK GNU C++17 TESTS 70 62 0 1900
594199 bjin C Aug. 7, 2011, 12:28 p.m. OK Haskell TESTS 70 30 2150400 1900
612603 CindyLinz C Aug. 16, 2011, 5:23 a.m. OK Haskell TESTS 70 50 3174400 1900
593988 mipt.vi002 C Aug. 7, 2011, 12:23 p.m. OK Haskell TESTS 70 50 3174400 1900
596440 Egor C Aug. 7, 2011, 3:11 p.m. OK Java 6 TESTS 70 90 43008000 1900
594898 tehqin C Aug. 7, 2011, 12:47 p.m. OK Java 6 TESTS 70 90 43008000 1900
3313869 hs484 C March 14, 2013, 5:27 a.m. OK Java 6 TESTS 70 93 0 1900
624231 anhdt C Aug. 21, 2011, 5:43 a.m. OK Java 6 TESTS 70 110 35225600 1900
605141 OgieKako C Aug. 13, 2011, 1:25 p.m. OK Java 6 TESTS 70 110 35328000 1900
597803 pius_88 C Aug. 8, 2011, 6:37 a.m. OK Java 6 TESTS 70 110 35328000 1900
593747 Rasifiel C Aug. 7, 2011, 12:16 p.m. OK Java 6 TESTS 70 110 43008000 1900
592489 mmaxio C Aug. 7, 2011, 11:46 a.m. OK Java 6 TESTS 70 110 43008000 1900
597412 Aksenov239 C Aug. 7, 2011, 7:02 p.m. OK Java 6 TESTS 70 110 43110400 1900
593140 SergeyLazarev C Aug. 7, 2011, 12:01 p.m. OK Java 6 TESTS 70 110 43110400 1900
16306295 alibaba C Feb. 24, 2016, 9:45 a.m. OK Java 8 TESTS 70 278 0 1900
8645494 AlexFetisov C Nov. 11, 2014, 5:33 a.m. OK Java 8 TESTS 70 342 204800 1900
594662 tanzaku C Aug. 7, 2011, 12:41 p.m. OK Mono C# TESTS 70 130 5632000 1900
596380 Scalar C Aug. 7, 2011, 3:04 p.m. OK Mono C# TESTS 70 140 5734400 1900
3530675 binwin20 C April 14, 2013, 2:57 a.m. OK MS C++ TESTS 70 15 0 1900
2938906 Dabek C Jan. 16, 2013, 3:42 p.m. OK MS C++ TESTS 70 15 0 1900
12027595 Maks_DP C July 13, 2015, 9:44 a.m. OK MS C++ TESTS 70 30 0 1900
2070774 Timur_Sitdikov C Aug. 31, 2012, 6:40 a.m. OK MS C++ TESTS 70 30 716800 1900
598163 huhuuuhfrl C Aug. 8, 2011, 8:54 a.m. OK MS C++ TESTS 70 30 1331200 1900
596015 P___ C Aug. 7, 2011, 2:29 p.m. OK MS C++ TESTS 70 30 1331200 1900
929779 Fdg C Dec. 4, 2011, 3:59 p.m. OK MS C++ TESTS 70 30 1433600 1900
769986 libssl C Oct. 16, 2011, 6:11 p.m. OK MS C++ TESTS 70 30 1433600 1900
1243258 soundsdx C Feb. 29, 2012, 11 a.m. OK MS C++ TESTS 70 30 1433600 1900
1810492 rinigan C June 19, 2012, 3:28 p.m. OK MS C++ TESTS 70 30 1433600 1900
58512497 CtrlAlt C Aug. 9, 2019, 7:56 p.m. OK MS C++ 2017 TESTS 70 62 0 1900
56017559 sorry_im_smurfing C June 24, 2019, 10:49 p.m. OK MS C++ 2017 TESTS 70 62 0 1900
597573 insane C Aug. 7, 2011, 10:45 p.m. OK Python 2 TESTS 70 60 2867200 1900
595812 sqybi C Aug. 7, 2011, 2:06 p.m. OK Python 2 TESTS 70 60 2867200 1900
595804 fanatid C Aug. 7, 2011, 2:06 p.m. OK Python 2 TESTS 70 60 2867200 1900
593843 sevenkplus C Aug. 7, 2011, 12:19 p.m. OK Python 2 TESTS 70 60 2867200 1900
604946 Martial C Aug. 13, 2011, 11:12 a.m. OK Python 2 TESTS 70 80 2867200 1900
600427 camapaojiekca C Aug. 9, 2011, 1:17 p.m. OK Python 2 TESTS 70 80 2867200 1900
857512 kien_metalrock C Nov. 11, 2011, 7:54 a.m. OK Python 2 TESTS 70 130 3891200 1900
593028 Gassa C Aug. 7, 2011, 11:59 a.m. OK Python 2 TESTS 70 130 3891200 1900
28787663 YazanRi C July 22, 2017, 10:25 p.m. OK Python 3 TESTS 70 154 4608000 1900
42134357 Mk_Python_v1 C Aug. 26, 2018, 9:44 p.m. OK Python 3 TESTS 70 280 0 1900

remove filters

Back to search problems