Educational Codeforces Round 90 (Rated for Div. 2)

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
1373 Educational Codeforces Round 90 (Rated for Div. 2) FINISHED False 7200 138727499 June 25, 2020, 2:35 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 2752 ) E Sum of Digits PROGRAMMING brute force constructive algorithms dp greedy math number theory

B'Let f(x) be the sum of digits of a decimal number x . Find the smallest non-negative integer x such that f(x) + f(x + 1) + ... + f(x + k) = n . The first line contains one integer t ( 1 <= t <= 150 ) -- the number of test cases. Each test case consists of one line containing two integers n and k ( 1 <= n <= 150 , 0 <= k <= 9 ). For each test case, print one integer without leading zeroes. If there is no such x that f(x) + f(x + 1) + ... + f(x + k) = n , print -1 ; otherwise, print the minimum x meeting that constraint. '...

Tutorials

Educational Codeforces Round 90 Editorial

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
85039419 Gassa E June 25, 2020, 4:05 p.m. OK D TESTS 27 31 6656000
85063687 ruban E June 25, 2020, 6:11 p.m. OK Delphi TESTS 27 296 146227200
85063648 ruban E June 25, 2020, 6:10 p.m. OK FPC TESTS 27 467 145612800
85028009 rainboy E June 25, 2020, 3:40 p.m. OK GNU C11 TESTS 27 46 3993600
85037273 shuyingte E June 25, 2020, 4 p.m. OK GNU C++11 TESTS 27 15 3993600
85050022 xish E June 25, 2020, 4:30 p.m. OK GNU C++11 TESTS 27 15 4096000
85037512 langdamao E June 25, 2020, 4:01 p.m. OK GNU C++11 TESTS 27 15 4096000
85030168 WYXkk_ E June 25, 2020, 3:44 p.m. OK GNU C++11 TESTS 27 15 4096000
85028016 Rainer1116 E June 25, 2020, 3:40 p.m. OK GNU C++11 TESTS 27 15 4096000
85082138 DD_BOND E June 26, 2020, 1:38 a.m. OK GNU C++11 TESTS 27 15 4096000
85074040 kingofgeedorah E June 25, 2020, 8:58 p.m. OK GNU C++11 TESTS 27 30 4096000
85058767 Momo_xxx E June 25, 2020, 5:15 p.m. OK GNU C++11 TESTS 27 30 4096000
85038708 nakari1124 E June 25, 2020, 4:04 p.m. OK GNU C++11 TESTS 27 30 4096000
85075803 beacon_cwk E June 25, 2020, 9:43 p.m. OK GNU C++11 TESTS 27 30 4096000
85035549 dph754132771 E June 25, 2020, 3:56 p.m. OK GNU C++14 TESTS 27 15 3686400
85067637 InaMinaDika E June 25, 2020, 7:04 p.m. OK GNU C++14 TESTS 27 30 3993600
85081730 shreyasbalakrishna19 E June 26, 2020, 1:23 a.m. OK GNU C++14 TESTS 27 31 3686400
85066249 WaheguruAnurag E June 25, 2020, 6:45 p.m. OK GNU C++14 TESTS 27 31 3686400
85063462 pikel_rik E June 25, 2020, 6:08 p.m. OK GNU C++14 TESTS 27 31 3686400
85061485 geschmack_cr7 E June 25, 2020, 5:44 p.m. OK GNU C++14 TESTS 27 31 3686400
85058538 bukanYohandi E June 25, 2020, 5:12 p.m. OK GNU C++14 TESTS 27 31 3686400
85057512 Skadamoosh E June 25, 2020, 5:03 p.m. OK GNU C++14 TESTS 27 31 3686400
85056908 s34vv1nd E June 25, 2020, 4:59 p.m. OK GNU C++14 TESTS 27 31 3686400
85071127 vThejas E June 25, 2020, 8 p.m. OK GNU C++14 TESTS 27 31 3686400
85055861 ytkn E June 25, 2020, 4:51 p.m. OK GNU C++17 TESTS 27 30 3686400
85056938 yash.gupta224a E June 25, 2020, 4:59 p.m. OK GNU C++17 TESTS 27 30 3686400
85051805 Messiah_10 E June 25, 2020, 4:34 p.m. OK GNU C++17 TESTS 27 30 3788800
85081357 fishlicker E June 26, 2020, 1:09 a.m. OK GNU C++17 TESTS 27 30 3788800
85041422 celestialcoder E June 25, 2020, 4:10 p.m. OK GNU C++17 TESTS 27 30 3788800
85041176 zahra..d E June 25, 2020, 4:09 p.m. OK GNU C++17 TESTS 27 30 3788800
85085595 KI-aq E June 26, 2020, 3:15 a.m. OK GNU C++17 TESTS 27 30 3891200
85083728 nomight E June 26, 2020, 2:30 a.m. OK GNU C++17 TESTS 27 31 3686400
85083103 huxch135 E June 26, 2020, 2:13 a.m. OK GNU C++17 TESTS 27 31 3686400
85086035 Y_is_sunshine E June 26, 2020, 3:26 a.m. OK GNU C++17 TESTS 27 31 3686400
85026543 noimi E June 25, 2020, 3:37 p.m. OK GNU C++17 (64) TESTS 27 15 4608000
85047798 lightseba E June 25, 2020, 4:26 p.m. OK GNU C++17 (64) TESTS 27 15 4608000
85061026 smax E June 25, 2020, 5:38 p.m. OK GNU C++17 (64) TESTS 27 30 4608000
85055320 pratish1 E June 25, 2020, 4:48 p.m. OK GNU C++17 (64) TESTS 27 30 4608000
85056333 iynaur87 E June 25, 2020, 4:54 p.m. OK GNU C++17 (64) TESTS 27 30 4608000
85082612 tyler E June 26, 2020, 1:56 a.m. OK GNU C++17 (64) TESTS 27 30 4608000
85081585 goatzyq E June 26, 2020, 1:18 a.m. OK GNU C++17 (64) TESTS 27 30 4608000
85081435 wangluyao E June 26, 2020, 1:12 a.m. OK GNU C++17 (64) TESTS 27 30 4608000
85068931 swapnil159 E June 25, 2020, 7:23 p.m. OK GNU C++17 (64) TESTS 27 30 4608000
85062060 Prateek E June 25, 2020, 5:51 p.m. OK GNU C++17 (64) TESTS 27 30 4608000
85084387 anhtaihsgs E June 26, 2020, 2:47 a.m. OK Java 11 TESTS 27 171 24268800
85032887 mphillotry E June 25, 2020, 3:50 p.m. OK Java 11 TESTS 27 171 24268800
85084244 anhtaihsgs E June 26, 2020, 2:43 a.m. OK Java 11 TESTS 27 186 24268800
85025809 PizzaLovers007 E June 25, 2020, 3:35 p.m. OK Java 11 TESTS 27 186 24371200
85017769 uwi E June 25, 2020, 3:21 p.m. OK Java 11 TESTS 27 187 24473600
85046042 yehara E June 25, 2020, 4:21 p.m. OK Java 11 TESTS 27 202 24883200
85073920 yvedryno E June 25, 2020, 8:56 p.m. OK Java 11 TESTS 27 217 24883200
85058526 bobib E June 25, 2020, 5:12 p.m. OK Java 11 TESTS 27 218 24883200
85042277 ZeyadKhattab E June 25, 2020, 4:12 p.m. OK Java 11 TESTS 27 233 24883200
85060387 nirvana_rsc E June 25, 2020, 5:31 p.m. OK Java 11 TESTS 27 233 24985600
85052273 1u_my_light E June 25, 2020, 4:34 p.m. OK Java 8 TESTS 27 109 20889600
85078653 robinz62 E June 25, 2020, 11:24 p.m. OK Java 8 TESTS 27 109 21094400
85075757 jxin31415 E June 25, 2020, 9:42 p.m. OK Java 8 TESTS 27 109 21196800
85073631 Magikarp1 E June 25, 2020, 8:49 p.m. OK Java 8 TESTS 27 109 21196800
85043774 holeguma E June 25, 2020, 4:16 p.m. OK Java 8 TESTS 27 124 20889600
85063944 levi.blinder E June 25, 2020, 6:14 p.m. OK Java 8 TESTS 27 124 20889600
85052595 TheSawan E June 25, 2020, 4:36 p.m. OK Java 8 TESTS 27 155 20889600
85044892 pulkit14 E June 25, 2020, 4:19 p.m. OK Java 8 TESTS 27 155 21401600
85058269 jerdno E June 25, 2020, 5:10 p.m. OK Java 8 TESTS 27 170 21708800
85064045 out_of_the_box E June 25, 2020, 6:16 p.m. OK Java 8 TESTS 27 171 21504000
85067825 Hakiobo E June 25, 2020, 7:07 p.m. OK Kotlin TESTS 27 109 20889600
85070940 Hakiobo E June 25, 2020, 7:57 p.m. OK Kotlin TESTS 27 124 20889600
85075375 Hakiobo E June 25, 2020, 9:31 p.m. OK Kotlin TESTS 27 124 20889600
85072321 Hakiobo E June 25, 2020, 8:22 p.m. OK Kotlin TESTS 27 124 20889600
85031390 Hakiobo E June 25, 2020, 3:47 p.m. OK Kotlin TESTS 27 124 21196800
85034906 songsinger E June 25, 2020, 3:55 p.m. OK Kotlin TESTS 27 124 21401600
85049681 koboshi E June 25, 2020, 4:30 p.m. OK Kotlin TESTS 27 140 22220800
85058033 golions E June 25, 2020, 5:08 p.m. OK Kotlin TESTS 27 155 22016000
85028329 EmK E June 25, 2020, 3:40 p.m. OK Mono C# TESTS 27 62 8601600
85056810 kuuso E June 25, 2020, 4:58 p.m. OK Mono C# TESTS 27 77 9830400
85042053 riantkb E June 25, 2020, 4:12 p.m. OK Mono C# TESTS 27 78 8704000
85038203 hibatibati E June 25, 2020, 4:02 p.m. OK Mono C# TESTS 27 78 13312000
85044066 tarattata1 E June 25, 2020, 4:17 p.m. OK MS C++ 2017 TESTS 27 31 3993600
85057629 youx E June 25, 2020, 5:04 p.m. OK MS C++ 2017 TESTS 27 31 3993600
85044709 otarra E June 25, 2020, 4:18 p.m. OK MS C++ 2017 TESTS 27 62 3993600
85028423 pichulia E June 25, 2020, 3:40 p.m. OK MS C++ 2017 TESTS 27 608 3993600
85029372 shehebe E June 25, 2020, 3:42 p.m. OK PyPy 2 TESTS 27 186 26726400
85076674 chris-md E June 25, 2020, 10:09 p.m. OK PyPy 2 TESTS 27 608 29593600
85071211 tobias.glimmerfors E June 25, 2020, 8:01 p.m. OK PyPy 3 TESTS 27 155 20992000
85067932 meteorexx E June 25, 2020, 7:08 p.m. OK PyPy 3 TESTS 27 155 20992000
85032054 chudy_lukasz1337 E June 25, 2020, 3:48 p.m. OK PyPy 3 TESTS 27 155 21094400
85034654 lucifer1004 E June 25, 2020, 3:54 p.m. OK PyPy 3 TESTS 27 155 22528000
85083684 anilsaxena E June 26, 2020, 2:29 a.m. OK PyPy 3 TESTS 27 155 22835200
85083610 saral_technologies E June 26, 2020, 2:28 a.m. OK PyPy 3 TESTS 27 155 22835200
85070104 qwertz73355a E June 25, 2020, 7:42 p.m. OK PyPy 3 TESTS 27 156 22528000
85062645 Kavo_Chego E June 25, 2020, 5:57 p.m. OK PyPy 3 TESTS 27 170 20992000
85056745 manish.17 E June 25, 2020, 4:57 p.m. OK PyPy 3 TESTS 27 170 22528000
85028686 PhilTheFish E June 25, 2020, 3:41 p.m. OK PyPy 3 TESTS 27 171 23040000
85064024 KA_Rma E June 25, 2020, 6:15 p.m. OK Python 3 TESTS 27 124 6963200
85038528 ikatakos E June 25, 2020, 4:03 p.m. OK Python 3 TESTS 27 124 6963200
85018933 ksun48 E June 25, 2020, 3:23 p.m. OK Python 3 TESTS 27 124 7987200
85083340 sylvain.berube E June 26, 2020, 2:21 a.m. OK Python 3 TESTS 27 140 6963200
85065568 nghethuat102 E June 25, 2020, 6:36 p.m. OK Python 3 TESTS 27 140 7065600
85032827 chinerist E June 25, 2020, 3:50 p.m. OK Python 3 TESTS 27 171 6963200
85082354 sudhirMTS E June 26, 2020, 1:47 a.m. OK Python 3 TESTS 27 202 7065600
85057458 sh1194 E June 25, 2020, 5:03 p.m. OK Python 3 TESTS 27 296 6963200
85057097 sh1194 E June 25, 2020, 5 p.m. OK Python 3 TESTS 27 296 7065600
85056935 sh1194 E June 25, 2020, 4:59 p.m. OK Python 3 TESTS 27 296 7065600
85025369 robostac E June 25, 2020, 3:35 p.m. OK Rust TESTS 27 46 3891200
85057561 fatemender E June 25, 2020, 5:03 p.m. OK Rust TESTS 27 46 4096000
85056672 rustafarian E June 25, 2020, 4:57 p.m. OK Rust TESTS 27 46 6041600
85029162 sansen E June 25, 2020, 3:42 p.m. OK Rust TESTS 27 124 4096000

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