Educational Codeforces Round 73 (Rated for Div. 2)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
1221 Educational Codeforces Round 73 (Rated for Div. 2) FINISHED False 7200 168535487 Sept. 19, 2019, 2:35 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 12137 ) B Knights PROGRAMMING constructive algorithms greedy 1100

B'You are given a chess board with n rows and n columns. Initially all cells of the board are empty, and you have to put a white or a black knight into each cell of the board. A knight is a chess piece that can attack a piece in cell ( x_2 , y_2 ) from the cell ( x_1 , y_1 ) if one of the following conditions is met: Here are some examples of which cells knight can attack. In each of the following pictures, if the knight is currently in the blue cell, it can attack all red cells (and only them). A duel of knights is a pair of knights of different colors such that these knights attack each other. You have to put a knight (a white one or a black one) into each cell in such a way that the number of duels is maximum possible. The first line contains one integer n ( 3 <= n <= 100 ) -- the number of rows (and columns) in the board. Print n lines with n characters in each line. The j -th character in the i -th line should be W, if the cell ( i , j ) contains a white knight, or B, if it contains a black knight. The number of duels should be maximum possible. If there are multiple optimal answers, print any of them. In the first example, there are 8 duels: '...

Tutorials

Разбор Educational Codeforces Round 73

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
60917575 Just_Matvey B Sept. 20, 2019, 9:02 a.m. OK FPC TESTS 19 46 0 1100
61005611 tranminhprvt01 B Sept. 21, 2019, 11:04 a.m. OK FPC TESTS 19 46 0 1100
61754302 Andrey15253545 B Oct. 3, 2019, 4:51 a.m. OK FPC TESTS 19 46 0 1100
61931317 JuanPL B Oct. 5, 2019, 4:24 p.m. OK FPC TESTS 19 46 0 1100
60920731 eugalt B Sept. 20, 2019, 10:31 a.m. OK GNU C11 TESTS 19 15 0 1100
60895425 rainboy B Sept. 19, 2019, 6:33 p.m. OK GNU C11 TESTS 19 30 0 1100
61399312 brandon71901 B Sept. 28, 2019, 4:21 a.m. OK GNU C11 TESTS 19 31 0 1100
60920540 eugalt B Sept. 20, 2019, 10:25 a.m. OK GNU C11 TESTS 19 31 0 1100
60908886 eugalt B Sept. 20, 2019, 4:33 a.m. OK GNU C11 TESTS 19 31 0 1100
60908813 eugalt B Sept. 20, 2019, 4:29 a.m. OK GNU C11 TESTS 19 31 0 1100
60908485 eugalt B Sept. 20, 2019, 4:17 a.m. OK GNU C11 TESTS 19 31 0 1100
60921784 eugalt B Sept. 20, 2019, 10:55 a.m. OK GNU C11 TESTS 19 31 0 1100
63721612 vjudge1 B Oct. 29, 2019, 11:32 a.m. OK GNU C11 TESTS 19 31 0 1100
67190001 vjudge4 B Dec. 19, 2019, 6:40 a.m. OK GNU C11 TESTS 19 31 819200 1100
62879325 vjudge5 B Oct. 18, 2019, 4:19 p.m. OK GNU C++11 TESTS 19 15 0 1100
62344832 abhimishraabhi B Oct. 11, 2019, 7:01 a.m. OK GNU C++11 TESTS 19 15 0 1100
61772152 vjudge1 B Oct. 3, 2019, 10:35 a.m. OK GNU C++11 TESTS 19 15 0 1100
61594100 debugx B Oct. 1, 2019, 8:08 a.m. OK GNU C++11 TESTS 19 15 0 1100
61298312 huapuwuxiao B Sept. 26, 2019, 3:12 a.m. OK GNU C++11 TESTS 19 15 0 1100
61174283 MrKairaouen B Sept. 23, 2019, 5:23 p.m. OK GNU C++11 TESTS 19 15 0 1100
68701110 _Kema_ B Jan. 13, 2020, 9:29 a.m. OK GNU C++11 TESTS 19 15 0 1100
66732732 vjudge5 B Dec. 12, 2019, 6:04 p.m. OK GNU C++11 TESTS 19 15 0 1100
63666467 lzfff B Oct. 28, 2019, 3:29 p.m. OK GNU C++11 TESTS 19 15 0 1100
63366149 wwwlps B Oct. 25, 2019, 7:33 a.m. OK GNU C++11 TESTS 19 15 0 1100
66815693 deebug B Dec. 14, 2019, 5:36 a.m. OK GNU C++14 TESTS 19 15 0 1100
67631456 SmartCoder B Dec. 26, 2019, 4:18 a.m. OK GNU C++14 TESTS 19 15 0 1100
67972841 sourabh54singh B Dec. 30, 2019, 3:41 p.m. OK GNU C++14 TESTS 19 15 0 1100
68148136 Ruslan448 B Jan. 4, 2020, 5:38 a.m. OK GNU C++14 TESTS 19 15 0 1100
68328383 Robbie B Jan. 6, 2020, 5:44 p.m. OK GNU C++14 TESTS 19 15 0 1100
69487109 voldemort_28 B Jan. 24, 2020, 8:07 p.m. OK GNU C++14 TESTS 19 15 0 1100
67573706 vjudge2 B Dec. 24, 2019, 11:12 p.m. OK GNU C++14 TESTS 19 15 0 1100
67169893 Abhi_sharma B Dec. 18, 2019, 4:53 p.m. OK GNU C++14 TESTS 19 15 0 1100
67169837 msd0707 B Dec. 18, 2019, 4:53 p.m. OK GNU C++14 TESTS 19 15 0 1100
67151918 vjudge5 B Dec. 18, 2019, 11:07 a.m. OK GNU C++14 TESTS 19 15 0 1100
67478213 .-O_O-. B Dec. 23, 2019, 3:04 p.m. OK GNU C++17 TESTS 19 15 0 1100
69714452 avibhar B Jan. 29, 2020, 8:29 a.m. OK GNU C++17 TESTS 19 15 0 1100
69700837 iankury B Jan. 29, 2020, 12:11 a.m. OK GNU C++17 TESTS 19 15 0 1100
69653111 Anna2010 B Jan. 28, 2020, 6:15 a.m. OK GNU C++17 TESTS 19 15 0 1100
69224158 vjudge2 B Jan. 21, 2020, 6:22 a.m. OK GNU C++17 TESTS 19 15 0 1100
68748526 youseeseeyou B Jan. 14, 2020, 5:48 a.m. OK GNU C++17 TESTS 19 15 0 1100
68482453 Kirito_re B Jan. 10, 2020, 8:20 a.m. OK GNU C++17 TESTS 19 15 0 1100
68460104 rai_wizard B Jan. 9, 2020, 5:46 p.m. OK GNU C++17 TESTS 19 15 0 1100
68239067 thirwanivishal3 B Jan. 5, 2020, 12:07 p.m. OK GNU C++17 TESTS 19 15 0 1100
68077232 Deemo B Jan. 2, 2020, 1:02 p.m. OK GNU C++17 TESTS 19 15 0 1100
61246530 sighduck B Sept. 25, 2019, 12:49 a.m. OK Go TESTS 19 30 0 1100
60902536 cs_office B Sept. 19, 2019, 11:18 p.m. OK Go TESTS 19 46 0 1100
61038459 asdacap B Sept. 21, 2019, 9:27 p.m. OK Haskell TESTS 19 31 102400 1100
60885171 jegfault B Sept. 19, 2019, 4:20 p.m. OK Haskell TESTS 19 31 102400 1100
68335432 lifeiteng B Jan. 6, 2020, 9:27 p.m. OK Java 11 TESTS 19 171 0 1100
68001160 hakr_2104 B Dec. 31, 2019, 10:53 a.m. OK Java 11 TESTS 19 186 0 1100
64055618 morete B Nov. 2, 2019, 1:12 a.m. OK Java 11 TESTS 19 233 0 1100
68677681 Baba-Yaga-0 B Jan. 12, 2020, 7:31 p.m. OK Java 11 TESTS 19 249 0 1100
60923558 xacto B Sept. 20, 2019, 11:31 a.m. OK Java 8 TESTS 19 93 0 1100
60913334 Naman_123 B Sept. 20, 2019, 6:58 a.m. OK Java 8 TESTS 19 108 0 1100
61087158 MubtasimShahriar B Sept. 22, 2019, 6:52 p.m. OK Java 8 TESTS 19 108 0 1100
60947766 vjvjain0 B Sept. 20, 2019, 7:48 p.m. OK Java 8 TESTS 19 108 0 1100
60898949 __vayper B Sept. 19, 2019, 8:07 p.m. OK Java 8 TESTS 19 108 0 1100
62045527 Whiplash99 B Oct. 7, 2019, 7:24 a.m. OK Java 8 TESTS 19 109 0 1100
67497149 MagentaCobra B Dec. 24, 2019, 12:17 a.m. OK Java 8 TESTS 19 109 0 1100
63749066 Warbler B Oct. 29, 2019, 7:33 p.m. OK Java 8 TESTS 19 109 0 1100
63510193 Omar_Othman B Oct. 26, 2019, 8:12 p.m. OK Java 8 TESTS 19 109 0 1100
63509444 Omar_Othman B Oct. 26, 2019, 7:56 p.m. OK Java 8 TESTS 19 109 0 1100
61194921 Venomous.Coder B Sept. 24, 2019, 5:07 a.m. OK JavaScript TESTS 19 46 204800 1100
60924592 SlavaG B Sept. 20, 2019, 11:51 a.m. OK Kotlin TESTS 19 109 0 1100
60905834 Spheniscine B Sept. 20, 2019, 2:29 a.m. OK Kotlin TESTS 19 109 0 1100
60937044 schmak.ekb B Sept. 20, 2019, 3:42 p.m. OK Kotlin TESTS 19 155 0 1100
65426221 Killer45 B Nov. 20, 2019, 10:46 a.m. OK Kotlin TESTS 19 155 0 1100
60893886 Black_Fregat B Sept. 19, 2019, 5:55 p.m. OK Kotlin TESTS 19 155 102400 1100
60893099 Ahmadjon B Sept. 19, 2019, 5:42 p.m. OK Kotlin TESTS 19 171 0 1100
60893909 sainageswar B Sept. 19, 2019, 5:55 p.m. OK Kotlin TESTS 19 186 921600 1100
60949045 Vesbat B Sept. 20, 2019, 8:29 p.m. OK Kotlin TESTS 19 186 2150400 1100
60912976 treasuryonly B Sept. 20, 2019, 6:49 a.m. OK Mono C# TESTS 19 46 0 1100
62425686 og.kostya B Oct. 12, 2019, 2:14 p.m. OK Mono C# TESTS 19 46 0 1100
60925690 nadilk B Sept. 20, 2019, 12:12 p.m. OK Mono C# TESTS 19 77 0 1100
61783660 Cybersys B Oct. 3, 2019, 1:54 p.m. OK Mono C# TESTS 19 77 0 1100
60930648 Salatik231166 B Sept. 20, 2019, 1:39 p.m. OK Mono C# TESTS 19 93 0 1100
60915879 kuro13 B Sept. 20, 2019, 8:11 a.m. OK Mono C# TESTS 19 124 6656000 1100
61681950 vjudge2 B Oct. 2, 2019, 1:45 a.m. OK MS C++ TESTS 19 15 80179200 1100
61824661 vjudge1 B Oct. 4, 2019, 4:08 a.m. OK MS C++ TESTS 19 30 0 1100
61682820 vjudge5 B Oct. 2, 2019, 2:15 a.m. OK MS C++ TESTS 19 30 0 1100
61088043 vjudge5 B Sept. 22, 2019, 7:14 p.m. OK MS C++ TESTS 19 30 0 1100
61014635 vjudge2 B Sept. 21, 2019, 1:04 p.m. OK MS C++ TESTS 19 30 0 1100
61960995 vjudge3 B Oct. 6, 2019, 7:27 a.m. OK MS C++ TESTS 19 30 0 1100
62899810 vjudge5 B Oct. 19, 2019, 3:28 a.m. OK MS C++ TESTS 19 30 0 1100
64572647 vjudge3 B Nov. 9, 2019, 9:43 a.m. OK MS C++ TESTS 19 30 0 1100
69671010 vjudge1 B Jan. 28, 2020, 12:59 p.m. OK MS C++ TESTS 19 30 0 1100
69884976 DM1 B Jan. 31, 2020, 7:52 a.m. OK MS C++ TESTS 19 30 0 1100
64716619 YusupB B Nov. 11, 2019, 10:42 p.m. OK MS C++ 2017 TESTS 19 15 0 1100
64550467 Landerkid B Nov. 8, 2019, 10:46 p.m. OK MS C++ 2017 TESTS 19 15 307200 1100
60919300 risa243 B Sept. 20, 2019, 9:50 a.m. OK MS C++ 2017 TESTS 19 30 0 1100
60906488 Jiang142857 B Sept. 20, 2019, 2:55 a.m. OK MS C++ 2017 TESTS 19 30 0 1100
62538642 Rydolf_sikorski-Baal B Oct. 14, 2019, 1:27 a.m. OK MS C++ 2017 TESTS 19 30 0 1100
61762072 Y_is_sunshine B Oct. 3, 2019, 7:25 a.m. OK MS C++ 2017 TESTS 19 30 0 1100
60910403 zhangwen123 B Sept. 20, 2019, 5:34 a.m. OK MS C++ 2017 TESTS 19 30 0 1100
63706892 Karimbz B Oct. 29, 2019, 8:42 a.m. OK MS C++ 2017 TESTS 19 31 0 1100
66411395 vjudge5 B Dec. 6, 2019, 3:27 p.m. OK MS C++ 2017 TESTS 19 31 0 1100
68281938 yerzh B Jan. 5, 2020, 5:18 p.m. OK MS C++ 2017 TESTS 19 31 0 1100
66248123 Saroupille B Dec. 3, 2019, 10:11 p.m. OK Ocaml TESTS 19 31 1331200 1100
62101374 kushchev070502 B Oct. 8, 2019, 9:14 a.m. OK PascalABC.NET TESTS 19 311 0 1100
60887436 porhunov26 B Sept. 19, 2019, 4:30 p.m. OK PascalABC.NET TESTS 19 343 0 1100
60891257 rsFalse B Sept. 19, 2019, 5:08 p.m. OK Perl TESTS 19 46 0 1100
60888088 elite77 B Sept. 19, 2019, 4:32 p.m. OK Perl TESTS 19 810 819200 1100
60946294 mayakin B Sept. 20, 2019, 7:04 p.m. OK PHP TESTS 19 62 512000 1100
60915604 graceoflives B Sept. 20, 2019, 8:03 a.m. OK PHP TESTS 19 93 0 1100
61677948 akifpatel B Oct. 1, 2019, 9:47 p.m. OK PyPy 2 TESTS 19 124 204800 1100
61107053 sy_chen B Sept. 23, 2019, 9:39 a.m. OK PyPy 2 TESTS 19 155 102400 1100
61255925 raj1307 B Sept. 25, 2019, 10:04 a.m. OK PyPy 2 TESTS 19 171 1126400 1100
63356756 zsc666 B Oct. 25, 2019, 3:09 a.m. OK PyPy 2 TESTS 19 218 0 1100
62114442 dzijo B Oct. 8, 2019, 1:01 p.m. OK PyPy 3 TESTS 19 124 0 1100
65715138 pranavcool4 B Nov. 25, 2019, 4:12 p.m. OK PyPy 3 TESTS 19 139 0 1100
62918898 KLWDSF_mantra B Oct. 19, 2019, 9:27 a.m. OK PyPy 3 TESTS 19 139 0 1100
62394965 mshiladityam B Oct. 12, 2019, 5 a.m. OK PyPy 3 TESTS 19 139 0 1100
61316834 Astrophile B Sept. 26, 2019, 11:22 a.m. OK PyPy 3 TESTS 19 139 0 1100
60943517 disturbance_is_created B Sept. 20, 2019, 5:59 p.m. OK PyPy 3 TESTS 19 139 0 1100
60890560 Presi028 B Sept. 19, 2019, 4:57 p.m. OK PyPy 3 TESTS 19 139 0 1100
61346064 Ueki B Sept. 27, 2019, 4:58 a.m. OK PyPy 3 TESTS 19 139 1433600 1100
69945547 mitribunskiy B Feb. 1, 2020, 7:29 a.m. OK PyPy 3 TESTS 19 140 0 1100
68334987 n000 B Jan. 6, 2020, 9:03 p.m. OK PyPy 3 TESTS 19 140 0 1100
61577073 sirjan13 B Sept. 30, 2019, 9:39 p.m. OK Python 2 TESTS 19 186 0 1100
60950233 eugalt B Sept. 20, 2019, 9:15 p.m. OK Python 2 TESTS 19 186 0 1100
60892252 eugalt B Sept. 19, 2019, 5:26 p.m. OK Python 2 TESTS 19 187 0 1100
61079683 sai.comgoin B Sept. 22, 2019, 3:49 p.m. OK Python 2 TESTS 19 202 0 1100
61017784 shubhankarsharma00 B Sept. 21, 2019, 1:48 p.m. OK Python 2 TESTS 19 202 0 1100
60898609 Anishjha B Sept. 19, 2019, 7:56 p.m. OK Python 2 TESTS 19 202 0 1100
60901975 eugalt B Sept. 19, 2019, 10:36 p.m. OK Python 2 TESTS 19 218 0 1100
60907645 avi13715 B Sept. 20, 2019, 3:40 a.m. OK Python 3 TESTS 19 108 0 1100
64167582 Mehrdad_ravenS B Nov. 3, 2019, 4:57 p.m. OK Python 3 TESTS 19 109 0 1100
64167504 Mehrdad_ravenS B Nov. 3, 2019, 4:55 p.m. OK Python 3 TESTS 19 109 0 1100
62941908 NewGame B Oct. 19, 2019, 3:54 p.m. OK Python 3 TESTS 19 109 0 1100
62940690 gswetha1713 B Oct. 19, 2019, 3:29 p.m. OK Python 3 TESTS 19 109 0 1100
62868628 rahul2240 B Oct. 18, 2019, 1:03 p.m. OK Python 3 TESTS 19 109 0 1100
61786053 Andruwka B Oct. 3, 2019, 2:28 p.m. OK Python 3 TESTS 19 109 0 1100
61550921 karam_s B Sept. 30, 2019, 12:25 p.m. OK Python 3 TESTS 19 109 0 1100
61458179 scorpio19 B Sept. 29, 2019, 7:20 a.m. OK Python 3 TESTS 19 109 0 1100
61431170 jaspreet_singh. B Sept. 28, 2019, 2:47 p.m. OK Python 3 TESTS 19 109 0 1100
60910093 sansen B Sept. 20, 2019, 5:23 a.m. OK Rust TESTS 19 30 0 1100
61045851 000golabi B Sept. 22, 2019, 4:23 a.m. OK Rust TESTS 19 31 0 1100
69680006 akiradeveloper B Jan. 28, 2020, 3:21 p.m. OK Rust TESTS 19 31 204800 1100
61025672 ValenKof B Sept. 21, 2019, 3:54 p.m. OK Rust TESTS 19 31 512000 1100

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