Educational Codeforces Round 101 (Rated for Div. 2)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
1469 Educational Codeforces Round 101 (Rated for Div. 2) FINISHED False 7200 128186711 Dec. 28, 2020, 2:35 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 27869 ) A Regular Bracket Sequence PROGRAMMING constructive algorithms greedy

B'A bracket sequence is called regular if it is possible to obtain correct arithmetic expression by inserting characters + and 1 into this sequence. For example, sequences (())(), () and (()(())) are regular, while )(, (() and (()))( are not. Let 's call a regular bracket sequence "RBS". You are given a sequence s of n characters (, ), and/or ?. There is exactly one character ( and exactly one character ) in this sequence. You have to replace every character ? with either ) or ( (different characters ? can be replaced with different brackets). You cannot reorder the characters, remove them, insert other characters, and each ? must be replaced. Determine if it is possible to obtain an RBS after these replacements. The first line contains one integer t ( 1 <= t <= 1000 ) -- the number of test cases. Each test case consists of one line containing s ( 2 <= |s| <= 100 ) -- a sequence of characters (, ), and/or ?. There is exactly one character ( and exactly one character ) in this sequence. For each test case, print YES if it is possible to obtain a regular bracket sequence, or NO otherwise}. You may print each letter in any case (for example, YES, Yes, yes, yEs will all be recognized as positive answer). In the first test case, the sequence is already an RBS. In the third test case, you can obtain an RBS as follows: ()() or (()). In the fourth test case, you can obtain an RBS as follows: ()(). '...

Tutorials

Educational Codeforces Round 101 Editorial

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
102649106 Chaconne A Dec. 29, 2020, 12:31 a.m. OK Clang++17 Diagnostics TESTS 7 77 1024000
102624793 sngkhiem A Dec. 28, 2020, 4:43 p.m. OK FPC TESTS 3 31 102400
102622860 polneni_prashanth A Dec. 28, 2020, 4:34 p.m. OK GNU C11 TESTS 3 15 0
102653881 9334radha A Dec. 29, 2020, 3:39 a.m. OK GNU C11 TESTS 7 15 0
102657334 Lunasama A Dec. 29, 2020, 5:05 a.m. OK GNU C11 TESTS 7 15 0
102621881 _Akhil_3366 A Dec. 28, 2020, 4:33 p.m. OK GNU C11 TESTS 3 15 0
102623602 Aditi.02 A Dec. 28, 2020, 4:38 p.m. OK GNU C11 TESTS 3 15 0
102626699 topol A Dec. 28, 2020, 4:54 p.m. OK GNU C11 TESTS 3 15 0
102630514 namanbhatia11111 A Dec. 28, 2020, 5:28 p.m. OK GNU C11 TESTS 3 15 0
102641998 Samadeol A Dec. 28, 2020, 8:23 p.m. OK GNU C11 TESTS 7 15 0
102635561 varshita2003 A Dec. 28, 2020, 6:32 p.m. OK GNU C11 TESTS 3 15 102400
102652650 gxlois A Dec. 29, 2020, 3:01 a.m. OK GNU C11 TESTS 7 30 0
102629396 UVER A Dec. 28, 2020, 5:16 p.m. OK GNU C++11 TESTS 3 0 0
102652377 d_a_d_d_y A Dec. 29, 2020, 2:51 a.m. OK GNU C++11 TESTS 7 15 0
102650493 lyyyyy A Dec. 29, 2020, 1:33 a.m. OK GNU C++11 TESTS 7 15 0
102648492 william555 A Dec. 29, 2020, 12:03 a.m. OK GNU C++11 TESTS 7 15 0
102641899 paras A Dec. 28, 2020, 8:21 p.m. OK GNU C++11 TESTS 7 15 0
102656717 Datguyprasham A Dec. 29, 2020, 4:52 a.m. OK GNU C++11 TESTS 7 15 0
102654761 03_01_00 A Dec. 29, 2020, 4:04 a.m. OK GNU C++11 TESTS 7 15 0
102652863 I_do_not_know A Dec. 29, 2020, 3:08 a.m. OK GNU C++11 TESTS 7 15 0
102652458 KiryaTWIX A Dec. 29, 2020, 2:54 a.m. OK GNU C++11 TESTS 7 15 0
102650549 2020gangbazi A Dec. 29, 2020, 1:36 a.m. OK GNU C++11 TESTS 7 15 0
102659672 manujk A Dec. 29, 2020, 5:46 a.m. OK GNU C++14 TESTS 7 15 0
102660184 saprey420 A Dec. 29, 2020, 5:54 a.m. OK GNU C++14 TESTS 7 15 0
102658422 zhumazhenis A Dec. 29, 2020, 5:25 a.m. OK GNU C++14 TESTS 7 15 0
102658272 ratnesh_tiwari A Dec. 29, 2020, 5:22 a.m. OK GNU C++14 TESTS 7 15 0
102656196 aditya_x A Dec. 29, 2020, 4:42 a.m. OK GNU C++14 TESTS 7 15 0
102648245 Mr-Spy A Dec. 28, 2020, 11:50 p.m. OK GNU C++14 TESTS 7 15 0
102642858 Belalmoawad A Dec. 28, 2020, 8:43 p.m. OK GNU C++14 TESTS 7 15 0
102640253 terminator123 A Dec. 28, 2020, 7:49 p.m. OK GNU C++14 TESTS 7 15 0
102639011 ankitkr602 A Dec. 28, 2020, 7:26 p.m. OK GNU C++14 TESTS 3 15 0
102638189 Abhay_raj1707 A Dec. 28, 2020, 7:12 p.m. OK GNU C++14 TESTS 3 15 0
102620297 Vaidik_Patel_27 A Dec. 28, 2020, 4:30 p.m. OK GNU C++17 TESTS 3 0 0
102648395 himv1998 A Dec. 28, 2020, 11:58 p.m. OK GNU C++17 TESTS 7 15 0
102649429 BetoSCL A Dec. 29, 2020, 12:45 a.m. OK GNU C++17 TESTS 7 15 0
102649996 caoash A Dec. 29, 2020, 1:10 a.m. OK GNU C++17 TESTS 7 15 0
102653229 naveen172 A Dec. 29, 2020, 3:20 a.m. OK GNU C++17 TESTS 7 15 0
102653398 kaa200102 A Dec. 29, 2020, 3:25 a.m. OK GNU C++17 TESTS 7 15 0
102653863 18H51A05P8 A Dec. 29, 2020, 3:38 a.m. OK GNU C++17 TESTS 7 15 0
102656300 Yaman0110 A Dec. 29, 2020, 4:44 a.m. OK GNU C++17 TESTS 7 15 0
102656421 palsoumyadeep A Dec. 29, 2020, 4:47 a.m. OK GNU C++17 TESTS 7 15 0
102657996 giiro_ A Dec. 29, 2020, 5:18 a.m. OK GNU C++17 TESTS 7 15 0
102621549 r7665415553 A Dec. 28, 2020, 4:33 p.m. OK GNU C++17 (64) TESTS 3 0 0
102647485 HNO2 A Dec. 28, 2020, 11:14 p.m. OK GNU C++17 (64) TESTS 7 15 0
102659273 nomad_heart A Dec. 29, 2020, 5:40 a.m. OK GNU C++17 (64) TESTS 7 15 0
102659051 adi2710 A Dec. 29, 2020, 5:36 a.m. OK GNU C++17 (64) TESTS 7 15 0
102657827 suraj429 A Dec. 29, 2020, 5:14 a.m. OK GNU C++17 (64) TESTS 7 15 0
102656018 dhiraj-01 A Dec. 29, 2020, 4:38 a.m. OK GNU C++17 (64) TESTS 7 15 0
102654402 agarwalaswastik A Dec. 29, 2020, 3:55 a.m. OK GNU C++17 (64) TESTS 7 15 0
102649117 Ehab_Fawzy A Dec. 29, 2020, 12:31 a.m. OK GNU C++17 (64) TESTS 7 15 0
102649064 Ehab_Fawzy A Dec. 29, 2020, 12:30 a.m. OK GNU C++17 (64) TESTS 7 15 0
102647345 Ameliorate A Dec. 28, 2020, 11:08 p.m. OK GNU C++17 (64) TESTS 7 15 0
102627603 honey_ramgarhia A Dec. 28, 2020, 5 p.m. OK Go TESTS 3 30 0
102625792 razdva36 A Dec. 28, 2020, 4:49 p.m. OK Go TESTS 3 46 0
102637994 sarvjot_422002 A Dec. 28, 2020, 7:09 p.m. OK Java 11 TESTS 3 139 0
102646944 Siddharth2020 A Dec. 28, 2020, 10:52 p.m. OK Java 11 TESTS 7 155 0
102628639 Centelle A Dec. 28, 2020, 5:09 p.m. OK Java 11 TESTS 3 155 0
102634453 mr.arora A Dec. 28, 2020, 6:17 p.m. OK Java 11 TESTS 3 156 0
102620470 adarsh_goku A Dec. 28, 2020, 4:31 p.m. OK Java 11 TESTS 3 156 0
102656612 tusharjape007 A Dec. 29, 2020, 4:50 a.m. OK Java 11 TESTS 7 170 0
102650364 abdelrahman-yousf A Dec. 29, 2020, 1:28 a.m. OK Java 11 TESTS 7 171 0
102658129 sam_code A Dec. 29, 2020, 5:20 a.m. OK Java 11 TESTS 7 171 0
102652629 Oopsimbad A Dec. 29, 2020, 3 a.m. OK Java 11 TESTS 7 171 0
102651232 abdelrahman-yousf A Dec. 29, 2020, 2:06 a.m. OK Java 11 TESTS 7 171 0
102628902 Pranay2516 A Dec. 28, 2020, 5:11 p.m. OK Java 8 TESTS 3 78 0
102653417 O-infinity A Dec. 29, 2020, 3:26 a.m. OK Java 8 TESTS 7 93 0
102639285 dmorolia A Dec. 28, 2020, 7:31 p.m. OK Java 8 TESTS 3 93 0
102636038 noobmaster_619 A Dec. 28, 2020, 6:39 p.m. OK Java 8 TESTS 3 93 0
102641183 xoszm A Dec. 28, 2020, 8:06 p.m. OK Java 8 TESTS 7 108 0
102641078 rdsaurabh97 A Dec. 28, 2020, 8:04 p.m. OK Java 8 TESTS 7 108 0
102640743 kbadrinath A Dec. 28, 2020, 7:58 p.m. OK Java 8 TESTS 7 108 0
102652256 MagentaCobra A Dec. 29, 2020, 2:46 a.m. OK Java 8 TESTS 7 108 0
102648533 MubtasimShahriar A Dec. 29, 2020, 12:05 a.m. OK Java 8 TESTS 7 108 0
102647785 qlf9 A Dec. 28, 2020, 11:28 p.m. OK Java 8 TESTS 7 108 0
102655922 kabden.a A Dec. 29, 2020, 4:36 a.m. OK JavaScript TESTS 7 31 0
102651122 Spheniscine A Dec. 29, 2020, 2:01 a.m. OK Kotlin TESTS 7 124 0
102646674 vanvector A Dec. 28, 2020, 10:40 p.m. OK Kotlin TESTS 7 124 0
102627081 diekautz A Dec. 28, 2020, 4:57 p.m. OK Kotlin TESTS 3 124 204800
102647446 catforce A Dec. 28, 2020, 11:12 p.m. OK Kotlin TESTS 7 139 0
102630752 cmplx-xyttmt A Dec. 28, 2020, 5:31 p.m. OK Kotlin TESTS 3 140 0
102654155 man.yasakov A Dec. 29, 2020, 3:48 a.m. OK Kotlin TESTS 7 140 0
102642003 Uncle_Monkey A Dec. 28, 2020, 8:23 p.m. OK Kotlin TESTS 7 171 0
102653707 chan10 A Dec. 29, 2020, 3:34 a.m. OK Kotlin TESTS 7 186 1945600
102653797 chan10 A Dec. 29, 2020, 3:36 a.m. OK Kotlin TESTS 7 187 1945600
102634514 Zzerro A Dec. 28, 2020, 6:18 p.m. OK MS C++ TESTS 3 15 0
102634757 Zinnat_18 A Dec. 28, 2020, 6:21 p.m. OK MS C++ TESTS 3 15 0
102622528 dustnehowl A Dec. 28, 2020, 4:34 p.m. OK MS C++ TESTS 3 15 0
102631694 mragab A Dec. 28, 2020, 5:43 p.m. OK MS C++ 2017 TESTS 3 15 0
102655854 sskhynix A Dec. 29, 2020, 4:34 a.m. OK MS C++ 2017 TESTS 7 15 0
102622257 ehcgnahc A Dec. 28, 2020, 4:34 p.m. OK MS C++ 2017 TESTS 3 15 0
102628808 RaVincent A Dec. 28, 2020, 5:10 p.m. OK MS C++ 2017 TESTS 3 30 0
102630818 ustaritz A Dec. 28, 2020, 5:32 p.m. OK MS C++ 2017 TESTS 3 30 0
102630181 -Tarantula A Dec. 28, 2020, 5:25 p.m. OK MS C++ 2017 TESTS 3 30 0
102628321 karia A Dec. 28, 2020, 5:06 p.m. OK MS C++ 2017 TESTS 3 30 0
102658138 jaynpatel222 A Dec. 29, 2020, 5:20 a.m. OK MS C++ 2017 TESTS 7 31 0
102658648 jaynpatel222 A Dec. 29, 2020, 5:29 a.m. OK MS C++ 2017 TESTS 7 31 0
102649034 EvgeniusASPX A Dec. 29, 2020, 12:29 a.m. OK MS C++ 2017 TESTS 7 31 0
102626027 asutosh1998 A Dec. 28, 2020, 4:50 p.m. OK .NET Core C# TESTS 3 77 102400
102654045 manojram11 A Dec. 29, 2020, 3:44 a.m. OK Node.js TESTS 7 62 1228800
102621236 batyrbek.zhunis A Dec. 28, 2020, 4:32 p.m. OK PHP TESTS 3 31 0
102632496 m1trand1r A Dec. 28, 2020, 5:52 p.m. OK PyPy 3 TESTS 3 140 1638400
102626449 Scopula A Dec. 28, 2020, 4:53 p.m. OK PyPy 3 TESTS 3 140 2150400
102660232 manish.17 A Dec. 29, 2020, 5:55 a.m. OK PyPy 3 TESTS 7 155 1433600
102623287 thinkersloop A Dec. 28, 2020, 4:37 p.m. OK PyPy 3 TESTS 3 155 1843200
102625318 DarkOverlord999 A Dec. 28, 2020, 4:46 p.m. OK PyPy 3 TESTS 3 155 1945600
102641562 pk31299 A Dec. 28, 2020, 8:14 p.m. OK PyPy 3 TESTS 7 155 2048000
102627872 jabhi_18 A Dec. 28, 2020, 5:03 p.m. OK PyPy 3 TESTS 3 155 2048000
102628369 pmarecki A Dec. 28, 2020, 5:06 p.m. OK PyPy 3 TESTS 3 155 2252800
102656364 akifpathan A Dec. 29, 2020, 4:45 a.m. OK PyPy 3 TESTS 7 155 2355200
102641410 pk31299 A Dec. 28, 2020, 8:11 p.m. OK PyPy 3 TESTS 7 155 3174400
102637062 _DontGiveUp_ A Dec. 28, 2020, 6:54 p.m. OK Python 2 TESTS 3 140 0
102627891 mokshasood06 A Dec. 28, 2020, 5:03 p.m. OK Python 2 TESTS 3 155 0
102624223 thuglife69 A Dec. 28, 2020, 4:41 p.m. OK Python 2 TESTS 3 170 0
102648518 ComptineDunAutreEte A Dec. 29, 2020, 12:05 a.m. OK Python 2 TESTS 7 171 0
102648465 ComptineDunAutreEte A Dec. 29, 2020, 12:02 a.m. OK Python 2 TESTS 7 171 0
102618936 manjeet404 A Dec. 28, 2020, 4:27 p.m. OK Python 2 TESTS 3 171 0
102637079 gs_gupta A Dec. 28, 2020, 6:54 p.m. OK Python 3 TESTS 3 77 0
102656104 rky673 A Dec. 29, 2020, 4:40 a.m. OK Python 3 TESTS 7 93 0
102652303 Ahamed30 A Dec. 29, 2020, 2:48 a.m. OK Python 3 TESTS 7 93 0
102649854 yum A Dec. 29, 2020, 1:03 a.m. OK Python 3 TESTS 7 93 0
102645672 tunahhfishy A Dec. 28, 2020, 10:03 p.m. OK Python 3 TESTS 7 93 0
102640629 angrycder A Dec. 28, 2020, 7:55 p.m. OK Python 3 TESTS 7 93 0
102639415 rajshreegupta2220 A Dec. 28, 2020, 7:33 p.m. OK Python 3 TESTS 3 93 0
102634570 ankurraj511 A Dec. 28, 2020, 6:19 p.m. OK Python 3 TESTS 3 93 0
102632504 sh1194 A Dec. 28, 2020, 5:52 p.m. OK Python 3 TESTS 3 93 0
102630872 sicon54 A Dec. 28, 2020, 5:33 p.m. OK Python 3 TESTS 3 93 0
102628851 gmm_tea A Dec. 28, 2020, 5:11 p.m. OK Ruby TESTS 3 467 512000
102635008 Slsvcn A Dec. 28, 2020, 6:25 p.m. OK Rust TESTS 3 15 0
102654252 satylogin A Dec. 29, 2020, 3:51 a.m. OK Rust TESTS 7 31 0

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