Codeforces Round 425 (Div. 2)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
832 Codeforces Round 425 (Div. 2) FINISHED False 7200 275585085 July 24, 2017, 2:35 p.m.

Problems

Solved
Index
Name
Type
Tags
Community Tag
Rating
( 374 ) E Vasya and Shifts PROGRAMMING matrices 2700

Vasya has a set of 4 n strings of equal length, consisting of lowercase English letters " a ", " b ", " c ", " d " and " e ". Moreover, the set is split into n groups of 4 equal strings each. Vasya also has one special string a of the same length, consisting of letters " a " only. Vasya wants to obtain from string a some fixed string b , in order to do this, he can use the strings from his set in any order. When he uses some string x , each of the letters in string a replaces with the next letter in alphabet as many times as the alphabet position, counting from zero, of the corresponding letter in string x . Within this process the next letter in alphabet after " e " is " a ". For example, if some letter in a equals " b ", and the letter on the same position in x equals " c ", then the letter in a becomes equal " d ", because " c " is the second alphabet letter, counting from zero. If some letter in a equals " e ", and on the same position in x is " d ", then the letter in a becomes " c ". For example, if the string a equals " abcde ", and string x equals " baddc ", then a becomes " bbabb ". A used string disappears, but Vasya can use equal strings several times. Vasya wants to know for q given strings b , how many ways there are to obtain from the string a string b using the given set of 4 n strings? Two ways are different if the number of strings used from some group of 4 strings is different. Help Vasya compute the answers for these questions modulo 10 9 + 7 . The first line contains two integers n and m ( 1 ≤ n , m ≤ 500 ) — the number of groups of four strings in the set, and the length of all strings. Each of the next n lines contains a string s of length m , consisting of lowercase English letters " a ", " b ", " c ", " d " and " e ". This means that there is a group of four strings equal to s . The next line contains single integer q ( 1 ≤ q ≤ 300 ) — the number of strings b Vasya is interested in. Each of the next q strings contains a string b of

Tutorials

Codeforces Round #425 (Div.2) Editorial

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
28871435 I_Love_U_Sohan E July 25, 2017, 9:23 a.m. OK GNU C++ TESTS 83 171 3072000 2700
28848843 _rqy E July 24, 2017, 4:19 p.m. OK GNU C++ TESTS 83 171 3072000 2700
29041247 vjudge4 E July 31, 2017, 7:58 a.m. OK GNU C++ TESTS 83 171 3174400 2700
28876861 vjudge1 E July 25, 2017, 1:16 p.m. OK GNU C++ TESTS 83 171 3174400 2700
28987547 gamenewer E July 30, 2017, 9:49 a.m. OK GNU C++ TESTS 83 217 3174400 2700
28858158 guille E July 24, 2017, 9:03 p.m. OK GNU C++ TESTS 83 218 7065600 2700
28874882 prakash14 E July 25, 2017, 11:54 a.m. OK GNU C++ TESTS 83 234 3072000 2700
28851079 Parachutes E July 24, 2017, 4:32 p.m. OK GNU C++ TESTS 83 234 3174400 2700
29722270 ReFraction E Aug. 24, 2017, 4:59 a.m. OK GNU C++ TESTS 83 249 3072000 2700
28900137 Allunlimited E July 26, 2017, 9:32 a.m. OK GNU C++ TESTS 83 249 6144000 2700
57088375 Big_black_jujube E July 15, 2019, 9:45 a.m. OK GNU C++11 TESTS 83 140 2048000 2700
28862617 zhangzy E July 25, 2017, 2:19 a.m. OK GNU C++11 TESTS 83 140 3686400 2700
57873904 lopare E July 28, 2019, 3:55 a.m. OK GNU C++11 TESTS 83 155 2867200 2700
57769451 py_ultron E July 25, 2019, 11:11 p.m. OK GNU C++11 TESTS 83 156 2867200 2700
31527287 just_soso E Oct. 20, 2017, 8:41 a.m. OK GNU C++11 TESTS 83 171 3174400 2700
28974393 fshp971 E July 29, 2017, 4:31 p.m. OK GNU C++11 TESTS 83 171 11161600 2700
28881185 farfood E July 25, 2017, 3:44 p.m. OK GNU C++11 TESTS 83 187 3686400 2700
28974427 fshp971 E July 29, 2017, 4:33 p.m. OK GNU C++11 TESTS 83 187 7168000 2700
28852130 RNS_KSB E July 24, 2017, 5:04 p.m. OK GNU C++11 TESTS 83 217 6144000 2700
43229997 luogu_bot4 E Sept. 22, 2018, 1:25 a.m. OK GNU C++11 TESTS 83 234 3993600 2700
40980429 ReaLNero1 E July 30, 2018, 5:31 p.m. OK GNU C++14 TESTS 83 93 1024000 2700
28875622 Twishkle.Aevdark E July 25, 2017, 12:27 p.m. OK GNU C++14 TESTS 83 93 2969600 2700
46891244 zhou888 E Dec. 11, 2018, 6:14 a.m. OK GNU C++14 TESTS 83 124 1024000 2700
29347515 pps789 E Aug. 11, 2017, 8:17 a.m. OK GNU C++14 TESTS 83 140 5222400 2700
29040655 sai E July 31, 2017, 7:40 a.m. OK GNU C++14 TESTS 83 171 2969600 2700
29201196 Splashing E Aug. 4, 2017, 6:05 p.m. OK GNU C++14 TESTS 83 171 3584000 2700
28865179 fengsuiyan E July 25, 2017, 4:26 a.m. OK GNU C++14 TESTS 83 171 3993600 2700
28866393 fengsuiyan E July 25, 2017, 5:38 a.m. OK GNU C++14 TESTS 83 171 4300800 2700
28865798 fengsuiyan E July 25, 2017, 5:01 a.m. OK GNU C++14 TESTS 83 171 4300800 2700
29323345 mengrao E Aug. 10, 2017, 10:08 a.m. OK GNU C++14 TESTS 83 171 5939200 2700
61753456 vjudge5 E Oct. 3, 2019, 4:30 a.m. OK GNU C++17 TESTS 83 202 2048000 2700
61753067 vjudge3 E Oct. 3, 2019, 4:21 a.m. OK GNU C++17 TESTS 83 202 2048000 2700
61753303 vjudge4 E Oct. 3, 2019, 4:27 a.m. OK GNU C++17 TESTS 83 217 2048000 2700
46817964 ShichengXiao E Dec. 9, 2018, 1:14 p.m. OK GNU C++17 TESTS 83 218 1024000 2700
61763466 vjudge5 E Oct. 3, 2019, 7:51 a.m. OK GNU C++17 TESTS 83 218 2048000 2700
61763386 vjudge2 E Oct. 3, 2019, 7:50 a.m. OK GNU C++17 TESTS 83 295 2150400 2700
62082259 ivan100sic E Oct. 7, 2019, 9:37 p.m. OK GNU C++17 TESTS 83 498 1228800 2700
55627926 MetB E June 16, 2019, 10:07 a.m. OK GNU C++17 TESTS 83 1481 16281600 2700
55572927 MetB E June 14, 2019, 8:13 p.m. OK GNU C++17 TESTS 83 1528 16281600 2700
29627529 Darth_Jar_Jar_Binks E Aug. 20, 2017, 6:04 p.m. OK Java 8 TESTS 83 561 0 2700
28853516 uwi E July 24, 2017, 5:27 p.m. OK Java 8 TESTS 83 670 20582400 2700
28853943 megh422 E July 24, 2017, 5:37 p.m. OK Java 8 TESTS 83 1902 20582400 2700
28853717 uwi E July 24, 2017, 5:32 p.m. OK Java 8 TESTS 83 1980 20582400 2700
54551845 vjudge2 E May 24, 2019, 9:31 a.m. OK MS C++ TESTS 83 1248 1638400 2700

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