Codeforces Round 549 (Div. 1)

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
1142 Codeforces Round 549 (Div. 1) FINISHED False 7200 183473387 March 30, 2019, 5:10 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 3139 ) B Lynyrd Skynyrd PROGRAMMING data structures dfs and similar dp math trees 2300

B'Recently Lynyrd and Skynyrd went to a shop where Lynyrd bought a permutation p of length n , and Skynyrd bought an array a of length m , consisting of integers from 1 to n . Lynyrd and Skynyrd became bored, so they asked you q queries, each of which has the following form: "does the subsegment of a from the l -th to the r -th positions, inclusive, have a subsequence that is a cyclic shift of p ?" Please answer the queries. A permutation of length n is a sequence of n integers such that each integer from 1 to n appears exactly once in it. A cyclic shift of a permutation (p_1, p_2, ldots, p_n) is a permutation (p_i, p_{i + 1}, ldots, p_{n}, p_1, p_2, ldots, p_{i - 1}) for some i from 1 to n . For example, a permutation (2, 1, 3) has three distinct cyclic shifts: (2, 1, 3) , (1, 3, 2) , (3, 2, 1) . A subsequence of a subsegment of array a from the l -th to the r -th positions, inclusive, is a sequence a_{i_1}, a_{i_2}, ldots, a_{i_k} for some i_1, i_2, ldots, i_k such that l <= q i_1 < i_2 < ldots < i_k <= q r . The first line contains three integers n , m , q ( 1 <= n, m, q <= 2 cdot 10^5 ) -- the length of the permutation p , the length of the array a and the number of queries. The next line contains n integers from 1 to n , where the i -th of them is the i -th element of the permutation. Each integer from 1 to n appears exactly once. The next line contains m integers from 1 to n , the i -th of them is the i -th element of the array a . The next q lines describe queries. The i -th of these lines contains two integers l_i and r_i ( 1 <= l_i <= r_i <= m ), meaning that the i -th query is about the subsegment of the array from the l_i -th to the'...

Tutorials

Codeforces Round #549 Editorial

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
52046699 Gassa B March 30, 2019, 6:21 p.m. OK D TESTS 42 311 53043200 2300
64680989 vjudge2 B Nov. 11, 2019, 9:58 a.m. OK GNU C++11 TESTS 42 46 9011200 2300
64702002 aipostan B Nov. 11, 2019, 3:07 p.m. OK GNU C++11 TESTS 42 46 12902400 2300
52365377 JKLover B April 6, 2019, 12:32 a.m. OK GNU C++11 TESTS 42 46 14643200 2300
64700347 vjudge2 B Nov. 11, 2019, 2:37 p.m. OK GNU C++11 TESTS 42 46 15769600 2300
52807157 luogu_bot3 B April 16, 2019, 5:50 a.m. OK GNU C++11 TESTS 42 46 15769600 2300
62765515 ghy21 B Oct. 17, 2019, 8:30 a.m. OK GNU C++11 TESTS 42 46 15872000 2300
58121759 vjudge2 B Aug. 1, 2019, 11:04 a.m. OK GNU C++11 TESTS 42 46 15872000 2300
55610417 ReaLNero1 B June 16, 2019, 5:18 a.m. OK GNU C++11 TESTS 42 46 15872000 2300
64612036 inline B Nov. 10, 2019, 2:21 a.m. OK GNU C++11 TESTS 42 46 20787200 2300
60712568 Karry5307 B Sept. 17, 2019, 9:05 a.m. OK GNU C++11 TESTS 42 61 12083200 2300
64343252 vjudge3 B Nov. 6, 2019, 4:29 a.m. OK GNU C++14 TESTS 42 77 20377600 2300
60638251 iotang B Sept. 15, 2019, 2:41 p.m. OK GNU C++14 TESTS 42 77 35328000 2300
52046481 Linkus B March 30, 2019, 6:19 p.m. OK GNU C++14 TESTS 42 155 27443200 2300
52084772 ytriayggg B March 31, 2019, 1:50 p.m. OK GNU C++14 TESTS 42 171 20582400 2300
53856105 NuM B May 7, 2019, 4:19 p.m. OK GNU C++14 TESTS 42 171 23449600 2300
52041354 natsugiri B March 30, 2019, 5:53 p.m. OK GNU C++14 TESTS 42 171 32870400 2300
52067583 tjd229 B March 31, 2019, 6:17 a.m. OK GNU C++14 TESTS 42 186 17817600 2300
52056536 Neil B March 30, 2019, 8:16 p.m. OK GNU C++14 TESTS 42 187 10956800 2300
52743979 nielswiles B April 14, 2019, 10:39 a.m. OK GNU C++14 TESTS 42 202 11366400 2300
53033168 HanZhongBalls B April 20, 2019, 3:53 a.m. OK GNU C++14 TESTS 42 202 15564800 2300
64224439 vjudge1 B Nov. 4, 2019, 1:45 p.m. OK GNU C++17 TESTS 42 77 35328000 2300
60673188 vjudge2 B Sept. 16, 2019, 11:33 a.m. OK GNU C++17 TESTS 42 78 35328000 2300
52679821 HatsuneMikuo B April 13, 2019, 11:45 a.m. OK GNU C++17 TESTS 42 109 26214400 2300
52676673 interestingLSY B April 13, 2019, 9:57 a.m. OK GNU C++17 TESTS 42 109 26214400 2300
53464441 vjudge1 B April 28, 2019, 9:12 a.m. OK GNU C++17 TESTS 42 187 6348800 2300
52059960 Narut B March 30, 2019, 11:19 p.m. OK GNU C++17 TESTS 42 187 10342400 2300
53397890 bmerry B April 27, 2019, 10:04 a.m. OK GNU C++17 TESTS 42 202 5017600 2300
52135549 Narut B April 1, 2019, 2:09 a.m. OK GNU C++17 TESTS 42 202 8499200 2300
52154033 kidddddddddddddddddddddd B April 1, 2019, 12:45 p.m. OK GNU C++17 TESTS 42 202 11161600 2300
52038458 Errichto B March 30, 2019, 5:40 p.m. OK GNU C++17 TESTS 42 202 17817600 2300
52035648 Egor B March 30, 2019, 5:28 p.m. OK Java 8 TESTS 42 187 0 2300
52077343 Narut B March 31, 2019, 10:40 a.m. OK Java 8 TESTS 42 218 11673600 2300
52035156 Lewin B March 30, 2019, 5:26 p.m. OK Java 8 TESTS 42 218 18636800 2300
52077258 Narut B March 31, 2019, 10:38 a.m. OK Java 8 TESTS 42 233 11571200 2300
52036558 ilyakor B March 30, 2019, 5:32 p.m. OK Java 8 TESTS 42 234 17920000 2300
52103125 Narut B March 31, 2019, 2:56 p.m. OK Java 8 TESTS 42 296 10752000 2300
52249554 norty B April 2, 2019, 9:58 p.m. OK Java 8 TESTS 42 311 8499200 2300
52115094 Narut B March 31, 2019, 3:40 p.m. OK Java 8 TESTS 42 311 8499200 2300
52657315 mikkk B April 12, 2019, 7:40 p.m. OK Java 8 TESTS 42 311 32460800 2300
52239979 StayAwayFromBitches B April 2, 2019, 3:25 p.m. OK Java 8 TESTS 42 327 44339200 2300
52211196 alykov B April 1, 2019, 7:55 p.m. OK Kotlin TESTS 42 1013 10547200 2300
52053730 kuuso B March 30, 2019, 7:06 p.m. OK Mono C# TESTS 42 483 47104000 2300
64702025 vjudge4 B Nov. 11, 2019, 3:08 p.m. OK MS C++ TESTS 42 62 14950400 2300
53224101 S.K B April 24, 2019, 1:26 p.m. OK MS C++ TESTS 42 170 21094400 2300
58106499 vjudge3 B Aug. 1, 2019, 4:40 a.m. OK MS C++ TESTS 42 187 18432000 2300
64784365 vjudge4 B Nov. 13, 2019, 8:34 a.m. OK MS C++ TESTS 42 233 11366400 2300
53208482 dacc B April 24, 2019, 2:04 a.m. OK MS C++ TESTS 42 233 20070400 2300
53208006 vjudge2 B April 24, 2019, 1:21 a.m. OK MS C++ TESTS 42 249 20070400 2300
64780131 vjudge4 B Nov. 13, 2019, 6:45 a.m. OK MS C++ TESTS 42 265 44134400 2300
64773101 vjudge4 B Nov. 13, 2019, 1:52 a.m. OK MS C++ TESTS 42 311 32051200 2300
64346913 vjudge3 B Nov. 6, 2019, 6:45 a.m. OK MS C++ TESTS 42 342 18432000 2300
52037591 LoneFox B March 30, 2019, 5:36 p.m. OK MS C++ TESTS 42 342 24064000 2300
58106042 vjudge3 B Aug. 1, 2019, 4:21 a.m. OK MS C++ 2017 TESTS 42 280 30412800 2300
52042127 Milanin B March 30, 2019, 5:56 p.m. OK MS C++ 2017 TESTS 42 296 18944000 2300
52488104 AleksanderBalobanov B April 8, 2019, 10:19 a.m. OK MS C++ 2017 TESTS 42 327 34918400 2300
52232038 wellox B April 2, 2019, 12:15 p.m. OK MS C++ 2017 TESTS 42 701 18432000 2300
52382882 LSD B April 6, 2019, 10:53 a.m. OK MS C++ 2017 TESTS 42 1404 30310400 2300
52226409 RomeoFantastik B April 2, 2019, 9:43 a.m. OK MS C++ 2017 TESTS 42 1450 25702400 2300
52284017 Helli.code B April 3, 2019, 6:38 p.m. OK PyPy 3 TESTS 42 608 58163200 2300
52217579 yumtam B April 2, 2019, 3:43 a.m. OK PyPy 3 TESTS 42 608 58163200 2300
60241837 beginner1010 B Sept. 7, 2019, 10 p.m. OK PyPy 3 TESTS 42 858 60313600 2300
60241869 beginner1010 B Sept. 7, 2019, 10:01 p.m. OK PyPy 3 TESTS 42 935 59801600 2300
52055763 EbTech B March 30, 2019, 7:58 p.m. OK Rust TESTS 42 234 21504000 2300

remove filters

Back to search problems