Codeforces Round 563 (Div. 2)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
1174 Codeforces Round 563 (Div. 2) FINISHED False 7200 172252499 June 3, 2019, 2:05 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 1456 ) E Ehab and the Expected GCD Problem PROGRAMMING combinatorics dp math number theory 2500

B"Let's define a function f(p) on a permutation p as follows. Let g_i be the greatest common divisor (GCD) of elements p_1 , p_2 , ..., p_i (in other words, it is the GCD of the prefix of length i ). Then f(p) is the number of distinct elements among g_1 , g_2 , ..., g_n . Let f_{max}(n) be the maximum value of f(p) among all permutations p of integers 1 , 2 , ..., n . Given an integers n , count the number of permutations p of integers 1 , 2 , ..., n , such that f(p) is equal to f_{max}(n) . Since the answer may be large, print the remainder of its division by 1000 ,000 ,007 = 10^9 + 7 . The only line contains the integer n ( 2 <= n <= 10^6 ) -- the length of the permutations. The only line should contain your answer modulo 10^9+7 . Consider the second example: these are the permutations of length 3 : The maximum value f_{max}(3) = 2 , and there are 4 permutations p such that f(p)=2 . "...

Tutorials

Codeforces round #563 editorial

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
55094025 WuK E June 4, 2019, 4:03 p.m. OK GNU C11 TESTS 70 124 32051200 2500
55043857 rainboy E June 3, 2019, 3:27 p.m. OK GNU C11 TESTS 70 155 0 2500
55127698 llbra9z E June 5, 2019, 1:38 p.m. OK GNU C11 TESTS 70 857 168345600 2500
63929405 Vectory E Oct. 31, 2019, 1:53 p.m. OK GNU C++11 TESTS 70 31 0 2500
55616249 jakedavis E June 16, 2019, 9:07 a.m. OK GNU C++11 TESTS 70 31 7987200 2500
55042040 liu_zhan E June 3, 2019, 3:17 p.m. OK GNU C++11 TESTS 70 46 7987200 2500
55610566 ReaLNero1 E June 16, 2019, 5:24 a.m. OK GNU C++11 TESTS 70 46 7987200 2500
55090931 ddytxdy E June 4, 2019, 2:30 p.m. OK GNU C++11 TESTS 70 46 7987200 2500
55088494 ddytxdy E June 4, 2019, 1:31 p.m. OK GNU C++11 TESTS 70 46 7987200 2500
55044195 Daniel_Yeh E June 3, 2019, 3:29 p.m. OK GNU C++11 TESTS 70 46 25088000 2500
55097018 DimmyT E June 4, 2019, 5:45 p.m. OK GNU C++11 TESTS 70 46 32051200 2500
55097070 DimmyT E June 4, 2019, 5:46 p.m. OK GNU C++11 TESTS 70 46 32051200 2500
64093305 robin12138 E Nov. 2, 2019, 1:14 p.m. OK GNU C++11 TESTS 70 46 40038400 2500
55066867 faculty E June 4, 2019, 4:10 a.m. OK GNU C++14 TESTS 70 46 7987200 2500
55420668 GODF E June 11, 2019, 6:15 a.m. OK GNU C++14 TESTS 70 46 7987200 2500
55074361 MegaOwIer E June 4, 2019, 7:50 a.m. OK GNU C++14 TESTS 70 46 7987200 2500
55182018 Jefe E June 5, 2019, 11:42 p.m. OK GNU C++14 TESTS 70 46 12083200 2500
55080317 cloudsky01 E June 4, 2019, 10:26 a.m. OK GNU C++14 TESTS 70 46 15974400 2500
64555576 nandonathaniel E Nov. 9, 2019, 3:26 a.m. OK GNU C++14 TESTS 70 46 32051200 2500
55097166 DimmyT E June 4, 2019, 5:50 p.m. OK GNU C++14 TESTS 70 46 32256000 2500
59130273 Scut82 E Aug. 20, 2019, 10:43 a.m. OK GNU C++14 TESTS 70 61 12083200 2500
61505313 ddakji08 E Sept. 29, 2019, 2:55 p.m. OK GNU C++14 TESTS 70 61 15974400 2500
55420548 GODF E June 11, 2019, 6:12 a.m. OK GNU C++14 TESTS 70 62 7987200 2500
60501646 oskarfiuk1 E Sept. 13, 2019, 7:01 p.m. OK GNU C++17 TESTS 70 31 3993600 2500
55117020 nvmdava E June 5, 2019, 9:08 a.m. OK GNU C++17 TESTS 70 31 16076800 2500
55286656 LayCurse E June 8, 2019, 5:22 a.m. OK GNU C++17 TESTS 70 46 3993600 2500
55072558 CMXRYNP E June 4, 2019, 6:59 a.m. OK GNU C++17 TESTS 70 46 7987200 2500
59863817 Cahid E Sept. 1, 2019, 4:19 p.m. OK GNU C++17 TESTS 70 46 8192000 2500
59672450 S.K E Aug. 29, 2019, 4:40 p.m. OK GNU C++17 TESTS 70 46 16076800 2500
55046759 DinhDucManhGoldIOI2020 E June 3, 2019, 3:46 p.m. OK GNU C++17 TESTS 70 46 16076800 2500
55045121 LayCurse E June 3, 2019, 3:35 p.m. OK GNU C++17 TESTS 70 46 104550400 2500
55043163 Anachor E June 3, 2019, 3:23 p.m. OK GNU C++17 TESTS 70 61 16076800 2500
55053875 Smaug E June 3, 2019, 6:13 p.m. OK GNU C++17 TESTS 70 61 16076800 2500
57475096 Darth_Jar_Jar_Binks E July 21, 2019, 8:49 p.m. OK Java 8 TESTS 70 124 0 2500
55065377 dalt E June 4, 2019, 3:11 a.m. OK Java 8 TESTS 70 171 6144000 2500
55061617 Dukkha E June 3, 2019, 11:30 p.m. OK Java 8 TESTS 70 374 0 2500
55042160 uwi E June 3, 2019, 3:18 p.m. OK Java 8 TESTS 70 1216 3481600 2500
55058603 Dukkha E June 3, 2019, 8:26 p.m. OK Java 8 TESTS 70 1450 15564800 2500
55120272 Vedensky E June 5, 2019, 10:45 a.m. OK Kotlin TESTS 70 1231 260403200 2500
55065335 FatXi E June 4, 2019, 3:09 a.m. OK MS C++ 2017 TESTS 70 186 160358400 2500
55062793 youx E June 4, 2019, 12:54 a.m. OK MS C++ 2017 TESTS 70 218 0 2500
55068348 Timonnable E June 4, 2019, 5:01 a.m. OK MS C++ 2017 TESTS 70 343 102400 2500
55055635 bcollet E June 3, 2019, 6:52 p.m. OK PyPy 2 TESTS 70 841 2867200 2500
55106283 whatshisbucket E June 5, 2019, 2:57 a.m. OK PyPy 3 TESTS 70 171 204800 2500
55074335 whatshisbucket E June 4, 2019, 7:49 a.m. OK PyPy 3 TESTS 70 171 8704000 2500
55106141 whatshisbucket E June 5, 2019, 2:46 a.m. OK PyPy 3 TESTS 70 187 8908800 2500
55073940 whatshisbucket E June 4, 2019, 7:39 a.m. OK PyPy 3 TESTS 70 374 60416000 2500
55073293 whatshisbucket E June 4, 2019, 7:20 a.m. OK PyPy 3 TESTS 70 374 60416000 2500
55109659 Aidos E June 5, 2019, 5:29 a.m. OK PyPy 3 TESTS 70 639 117043200 2500
55937662 erickjohnross E June 22, 2019, 2:46 p.m. OK PyPy 3 TESTS 70 670 1638400 2500
55086002 Dvali_Gio E June 4, 2019, 12:36 p.m. OK PyPy 3 TESTS 70 1465 7782400 2500
55067325 whatshisbucket E June 4, 2019, 4:26 a.m. OK PyPy 3 TESTS 70 1465 7782400 2500
63525521 sansen E Oct. 27, 2019, 5:08 a.m. OK Rust TESTS 70 358 0 2500
63524888 sansen E Oct. 27, 2019, 4:57 a.m. OK Rust TESTS 70 373 0 2500

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