Codeforces Round 651 (Div. 2)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
1370 Codeforces Round 651 (Div. 2) FINISHED False 8100 144516263 June 20, 2020, 2:35 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 54232 ) A Maximum GCD PROGRAMMING brute force greedy implementation number theory

B"Let's consider all integers in the range from 1 to n (inclusive). Among all pairs of distinct integers in this range, find the maximum possible greatest common divisor of integers in pair. Formally, find the maximum value of mathrm{gcd}(a, b) , where 1 <= q a < b <= q n . The greatest common divisor, mathrm{gcd}(a, b) , of two positive integers a and b is the biggest integer that is a divisor of both a and b . The first line contains a single integer t ( 1 <= q t <= q 100 ) -- the number of test cases. The description of the test cases follows. The only line of each test case contains a single integer n ( 2 <= q n <= q 10^6 ). For each test case, output the maximum value of mathrm{gcd}(a, b) among all 1 <= q a < b <= q n . In the first test case, mathrm{gcd}(1, 2) = mathrm{gcd}(2, 3) = mathrm{gcd}(1, 3) = 1 . In the second test case, 2 is the maximum possible value, corresponding to mathrm{gcd}(2, 4) . "...

Tutorials

Editorial — Codeforces Round #651

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
84518988 Prantha_Debonath A June 20, 2020, 6:26 p.m. OK Clang++17 Diagnostics TESTS 11 31 0
84475801 Gassa A June 20, 2020, 3:39 p.m. OK D TESTS 11 31 0
84537972 fpc_coder A June 21, 2020, 12:38 a.m. OK FPC TESTS 11 31 0
84518477 butter_fly A June 20, 2020, 6:22 p.m. OK GNU C11 TESTS 11 15 0
84522143 aadarsh_aadi A June 20, 2020, 6:55 p.m. OK GNU C11 TESTS 11 15 0
84522154 alionleo33 A June 20, 2020, 6:55 p.m. OK GNU C11 TESTS 11 15 0
84534438 vjudge3 A June 20, 2020, 10:23 p.m. OK GNU C11 TESTS 11 15 0
84490308 rainboy A June 20, 2020, 4:05 p.m. OK GNU C11 TESTS 11 15 0
84490581 _7sp1 A June 20, 2020, 4:06 p.m. OK GNU C11 TESTS 11 15 0
84489378 pro_shudipto424 A June 20, 2020, 4:03 p.m. OK GNU C11 TESTS 11 15 0
84492379 Eftekhar_Nahim_CoU14 A June 20, 2020, 4:09 p.m. OK GNU C11 TESTS 11 15 0
84498543 anish_goyal A June 20, 2020, 4:22 p.m. OK GNU C11 TESTS 11 15 0
84500605 archikag5 A June 20, 2020, 4:27 p.m. OK GNU C11 TESTS 11 15 0
84540379 lwz159 A June 21, 2020, 2:06 a.m. OK GNU C++11 TESTS 11 15 0
84540213 alikoptan A June 21, 2020, 2:01 a.m. OK GNU C++11 TESTS 11 15 0
84539832 sri_akshya_18 A June 21, 2020, 1:47 a.m. OK GNU C++11 TESTS 11 15 0
84539505 shengzihang A June 21, 2020, 1:36 a.m. OK GNU C++11 TESTS 11 15 0
84544279 kair011a_ A June 21, 2020, 3:45 a.m. OK GNU C++11 TESTS 11 15 0
84543706 Pacific A June 21, 2020, 3:33 a.m. OK GNU C++11 TESTS 11 15 0
84542623 huhst2020_007 A June 21, 2020, 3:08 a.m. OK GNU C++11 TESTS 11 15 0
84541135 Jay142753869 A June 21, 2020, 2:28 a.m. OK GNU C++11 TESTS 11 15 0
84540799 KhandokerEbrahim A June 21, 2020, 2:18 a.m. OK GNU C++11 TESTS 11 15 0
84540568 ezboy A June 21, 2020, 2:12 a.m. OK GNU C++11 TESTS 11 15 0
84535792 NaimSS A June 20, 2020, 11:08 p.m. OK GNU C++14 TESTS 11 15 0
84538802 Momin_Just A June 21, 2020, 1:09 a.m. OK GNU C++14 TESTS 11 15 0
84541467 Fahad006 A June 21, 2020, 2:38 a.m. OK GNU C++14 TESTS 11 15 0
84542566 Ttube_lightT A June 21, 2020, 3:07 a.m. OK GNU C++14 TESTS 11 15 0
84533223 killer_ash A June 20, 2020, 9:52 p.m. OK GNU C++14 TESTS 11 15 0
84531681 SuperJ6 A June 20, 2020, 9:17 p.m. OK GNU C++14 TESTS 11 15 0
84526410 12Arpit A June 20, 2020, 7:50 p.m. OK GNU C++14 TESTS 11 15 0
84519571 halfBlood7 A June 20, 2020, 6:30 p.m. OK GNU C++14 TESTS 11 15 0
84519328 kharsh032 A June 20, 2020, 6:28 p.m. OK GNU C++14 TESTS 11 15 0
84517696 DurjOy A June 20, 2020, 6:16 p.m. OK GNU C++14 TESTS 11 15 0
84523932 Utkarsh1409 A June 20, 2020, 7:17 p.m. OK GNU C++17 TESTS 11 15 0
84544496 ayushzaveri05 A June 21, 2020, 3:50 a.m. OK GNU C++17 TESTS 11 15 0
84535318 emrulhasan A June 20, 2020, 10:51 p.m. OK GNU C++17 TESTS 11 15 0
84534327 AcarusJunior A June 20, 2020, 10:20 p.m. OK GNU C++17 TESTS 11 15 0
84524556 Shakib_SRK A June 20, 2020, 7:25 p.m. OK GNU C++17 TESTS 11 15 0
84522619 Chevli A June 20, 2020, 7:01 p.m. OK GNU C++17 TESTS 11 15 0
84518367 Rishabh_garg A June 20, 2020, 6:21 p.m. OK GNU C++17 TESTS 11 15 0
84515860 user_72 A June 20, 2020, 6:06 p.m. OK GNU C++17 TESTS 11 15 0
84498754 chaitanya_perikila A June 20, 2020, 4:23 p.m. OK GNU C++17 TESTS 11 15 0
84478633 Sha3ban_El-Bay A June 20, 2020, 3:44 p.m. OK GNU C++17 TESTS 11 15 0
84525222 quadraticreciprocity A June 20, 2020, 7:34 p.m. OK GNU C++17 (64) TESTS 11 15 0
84527744 MZuenni A June 20, 2020, 8:09 p.m. OK GNU C++17 (64) TESTS 11 15 0
84529226 errorgorn A June 20, 2020, 8:32 p.m. OK GNU C++17 (64) TESTS 11 15 0
84530826 mrboorger A June 20, 2020, 9 p.m. OK GNU C++17 (64) TESTS 11 15 0
84531330 alexistoigo A June 20, 2020, 9:10 p.m. OK GNU C++17 (64) TESTS 11 15 0
84533846 danielvitor23 A June 20, 2020, 10:07 p.m. OK GNU C++17 (64) TESTS 11 15 0
84537334 i_am_noob A June 21, 2020, 12:13 a.m. OK GNU C++17 (64) TESTS 11 15 0
84537351 pussybuster A June 21, 2020, 12:14 a.m. OK GNU C++17 (64) TESTS 11 15 0
84537542 S_A_P A June 21, 2020, 12:21 a.m. OK GNU C++17 (64) TESTS 11 15 0
84538997 lynmisakura A June 21, 2020, 1:17 a.m. OK GNU C++17 (64) TESTS 11 15 0
84476054 minimario A June 20, 2020, 3:40 p.m. OK Haskell TESTS 11 15 0
84490223 irredeemablyalone A June 20, 2020, 4:05 p.m. OK Java 11 TESTS 11 155 0
84517957 saniya3010 A June 20, 2020, 6:18 p.m. OK Java 11 TESTS 11 171 0
84535483 esaric A June 20, 2020, 10:57 p.m. OK Java 11 TESTS 11 171 0
84533918 Clowyy A June 20, 2020, 10:09 p.m. OK Java 11 TESTS 11 171 0
84531140 R3KT A June 20, 2020, 9:06 p.m. OK Java 11 TESTS 11 171 0
84522659 steve_rogers123 A June 20, 2020, 7:01 p.m. OK Java 11 TESTS 11 171 0
84522161 litesam A June 20, 2020, 6:55 p.m. OK Java 11 TESTS 11 171 0
84517248 GOD_ A June 20, 2020, 6:14 p.m. OK Java 11 TESTS 11 171 0
84505142 adityarathi A June 20, 2020, 4:36 p.m. OK Java 11 TESTS 11 171 0
84482486 urjarock A June 20, 2020, 3:51 p.m. OK Java 11 TESTS 11 171 0
84484277 samrat_97 A June 20, 2020, 3:54 p.m. OK Java 8 TESTS 11 93 0
84541224 mananparmar7042 A June 21, 2020, 2:30 a.m. OK Java 8 TESTS 11 108 0
84538825 bluesky111 A June 21, 2020, 1:10 a.m. OK Java 8 TESTS 11 108 0
84527949 beroul A June 20, 2020, 8:12 p.m. OK Java 8 TESTS 11 108 0
84525696 zhou.sw A June 20, 2020, 7:40 p.m. OK Java 8 TESTS 11 108 0
84524112 atish1999 A June 20, 2020, 7:19 p.m. OK Java 8 TESTS 11 108 0
84520242 Bdeveloper A June 20, 2020, 6:36 p.m. OK Java 8 TESTS 11 108 0
84516206 sourav2999 A June 20, 2020, 6:08 p.m. OK Java 8 TESTS 11 108 0
84544141 Shantanu_Rathod A June 21, 2020, 3:42 a.m. OK Java 8 TESTS 11 109 0
84542663 Manan8686 A June 21, 2020, 3:09 a.m. OK Java 8 TESTS 11 109 0
84523100 notAProgrammer_NAP A June 20, 2020, 7:06 p.m. OK JavaScript TESTS 11 31 1024000
84540207 sylvyrfysh A June 21, 2020, 2 a.m. OK Kotlin TESTS 11 109 0
84529369 krishnarb3 A June 20, 2020, 8:35 p.m. OK Kotlin TESTS 11 124 0
84507793 samir143009 A June 20, 2020, 4:42 p.m. OK Mono C# TESTS 11 62 0
84521434 ansergeyg A June 20, 2020, 6:47 p.m. OK Mono C# TESTS 11 155 0
84476666 sukant_1608 A June 20, 2020, 3:41 p.m. OK MS C++ TESTS 11 31 0
84486132 maryemsalah A June 20, 2020, 3:57 p.m. OK MS C++ TESTS 11 46 0
84528084 DiSTRuCtO A June 20, 2020, 8:14 p.m. OK MS C++ 2017 TESTS 11 31 0
84525607 Vitazzz A June 20, 2020, 7:39 p.m. OK MS C++ 2017 TESTS 11 31 0
84520423 alibabaand40haramies A June 20, 2020, 6:38 p.m. OK MS C++ 2017 TESTS 11 31 0
84519455 Husne_Matar A June 20, 2020, 6:29 p.m. OK MS C++ 2017 TESTS 11 31 0
84482199 Quenenty A June 20, 2020, 3:50 p.m. OK MS C++ 2017 TESTS 11 31 0
84476784 radwaahmed213 A June 20, 2020, 3:41 p.m. OK MS C++ 2017 TESTS 11 31 0
84542904 manthansharma154 A June 21, 2020, 3:15 a.m. OK MS C++ 2017 TESTS 11 31 0
84544444 mathgeek145 A June 21, 2020, 3:49 a.m. OK MS C++ 2017 TESTS 11 31 0
84543486 pengyule A June 21, 2020, 3:28 a.m. OK MS C++ 2017 TESTS 11 46 0
84483793 Sanju_14 A June 20, 2020, 3:53 p.m. OK MS C++ 2017 TESTS 11 46 0
84512246 OmniSliver A June 20, 2020, 4:49 p.m. OK Node.js TESTS 11 93 204800
84525325 explorer_sifat A June 20, 2020, 7:35 p.m. OK Node.js TESTS 11 109 102400
84488470 sarvagya8 A June 20, 2020, 4:02 p.m. OK Node.js TESTS 11 982 9625600
84477488 Desolater A June 20, 2020, 3:42 p.m. OK PascalABC.NET TESTS 11 342 409600
84540121 yinlei A June 21, 2020, 1:57 a.m. OK PHP TESTS 11 31 409600
84509672 Gokulan_cv A June 20, 2020, 4:45 p.m. OK PyPy 2 TESTS 11 467 17817600
84516929 p1ckl A June 20, 2020, 6:11 p.m. OK PyPy 3 TESTS 11 124 0
84538164 ayushag99 A June 21, 2020, 12:45 a.m. OK PyPy 3 TESTS 11 124 0
84530139 cgfs10000 A June 20, 2020, 8:48 p.m. OK PyPy 3 TESTS 11 124 0
84519929 pj21 A June 20, 2020, 6:34 p.m. OK PyPy 3 TESTS 11 124 0
84481164 JustChecking A June 20, 2020, 3:48 p.m. OK PyPy 3 TESTS 11 139 0
84541738 coder_pk A June 21, 2020, 2:46 a.m. OK PyPy 3 TESTS 11 139 0
84524542 AbhiC7721 A June 20, 2020, 7:25 p.m. OK PyPy 3 TESTS 11 139 0
84502664 LozhkaVilka A June 20, 2020, 4:31 p.m. OK PyPy 3 TESTS 11 139 0
84487989 faking_legend A June 20, 2020, 4:01 p.m. OK PyPy 3 TESTS 11 139 0
84482280 revathi13 A June 20, 2020, 3:50 p.m. OK PyPy 3 TESTS 11 139 0
84529470 ShadhinAshraf A June 20, 2020, 8:36 p.m. OK Python 2 TESTS 11 171 0
84528194 sirjan13 A June 20, 2020, 8:16 p.m. OK Python 2 TESTS 11 171 0
84483774 avltree A June 20, 2020, 3:53 p.m. OK Python 2 TESTS 11 171 0
84538692 mmhaxor1 A June 21, 2020, 1:04 a.m. OK Python 3 TESTS 11 93 0
84531302 WNG A June 20, 2020, 9:09 p.m. OK Python 3 TESTS 11 93 0
84519259 shel404 A June 20, 2020, 6:28 p.m. OK Python 3 TESTS 11 93 0
84516306 akuma_z A June 20, 2020, 6:08 p.m. OK Python 3 TESTS 11 93 0
84516106 WATLEACRE A June 20, 2020, 6:07 p.m. OK Python 3 TESTS 11 93 0
84488823 devesh-pande A June 20, 2020, 4:02 p.m. OK Python 3 TESTS 11 93 0
84488750 nejii_7 A June 20, 2020, 4:02 p.m. OK Python 3 TESTS 11 93 0
84481324 Supriyo_SS A June 20, 2020, 3:49 p.m. OK Python 3 TESTS 11 93 0
84476876 fortran7 A June 20, 2020, 3:41 p.m. OK Python 3 TESTS 11 93 0
84533003 rajkumar19084 A June 20, 2020, 9:47 p.m. OK Python 3 TESTS 11 108 0

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