Educational Codeforces Round 5

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
616 Educational Codeforces Round 5 FINISHED False 7200 279298799 Jan. 11, 2016, 3 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 2962 ) E Sum of Remainders PROGRAMMING implementation math number theory 2200

B'Calculate the value of the sum: n mod 1 + n mod 2 + n mod 3 + ... + n mod m. As the result can be very large, you should print the value modulo 109 xe2 x80 x89+ xe2 x80 x897 (the remainder when divided by 109 xe2 x80 x89+ xe2 x80 x897). The modulo operator a mod b stands for the remainder after dividing a by b. For example 10 mod 3 = 1. The only line contains two integers n, xe2 x80 x89m (1 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89n, xe2 x80 x89m xe2 x80 x89 xe2 x89 xa4 xe2 x80 x891013) -- the parameters of the sum. Print integer s -- the value of the required sum modulo 109 xe2 x80 x89+ xe2 x80 x897.'...

Tutorials

Editorial of Educational Codeforces Round 5

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
48095873 ruban E Jan. 8, 2019, 4:48 p.m. OK FPC TESTS 23 295 204800 2200
22225586 ngattaro1 E Nov. 15, 2016, 3:58 p.m. OK FPC TESTS 23 405 102400 2200
15595657 igdor99 E Jan. 26, 2016, 2:50 p.m. OK FPC TESTS 23 498 102400 2200
16218174 KingArthur E Feb. 20, 2016, 12:02 a.m. OK FPC TESTS 23 764 0 2200
40985360 ReaLNero1 E July 30, 2018, 7:54 p.m. OK GNU C++ TESTS 23 140 0 2200
27183265 vjudge1 E May 17, 2017, 4:07 p.m. OK GNU C++ TESTS 23 187 0 2200
15452943 -skyline- E Jan. 20, 2016, 12:22 p.m. OK GNU C++ TESTS 23 187 0 2200
17884667 _ShadowSong E May 13, 2016, 6:33 a.m. OK GNU C++ TESTS 23 187 2252800 2200
21771218 jugnu E Oct. 25, 2016, 12:52 p.m. OK GNU C++ TESTS 23 202 0 2200
24574819 bhaag_milkha E Feb. 10, 2017, 5:32 p.m. OK GNU C++ TESTS 23 202 2048000 2200
23404306 raghav_19 E Dec. 29, 2016, 5:39 p.m. OK GNU C++ TESTS 23 202 2048000 2200
19840206 RNS_CUS E Aug. 13, 2016, 2:58 a.m. OK GNU C++ TESTS 23 202 2048000 2200
15463986 dhuacm2 E Jan. 21, 2016, 6:57 a.m. OK GNU C++ TESTS 23 217 0 2200
41024973 vjudge5 E July 31, 2018, 2:24 p.m. OK GNU C++ TESTS 23 218 0 2200
59627849 rainboy E Aug. 28, 2019, 4:44 p.m. OK GNU C11 TESTS 23 187 0 2200
15381341 doraemon E Jan. 15, 2016, 3:47 a.m. OK GNU C++11 TESTS 23 202 0 2200
15684514 idemura E Jan. 30, 2016, 7:10 p.m. OK GNU C++11 TESTS 23 202 0 2200
15630273 2013303418 E Jan. 28, 2016, 1:49 p.m. OK GNU C++11 TESTS 23 202 0 2200
19605048 xyz.abc E Aug. 3, 2016, 8:22 p.m. OK GNU C++11 TESTS 23 202 0 2200
31147271 clacck E Oct. 8, 2017, 2:48 p.m. OK GNU C++11 TESTS 23 202 0 2200
20475278 plwww E Sept. 9, 2016, 9:21 a.m. OK GNU C++11 TESTS 23 202 102400 2200
17171452 dlehdgh E April 5, 2016, 12:42 p.m. OK GNU C++11 TESTS 23 202 2048000 2200
15343379 YHYCC E Jan. 14, 2016, 11:36 a.m. OK GNU C++11 TESTS 23 217 0 2200
15341007 samatbor E Jan. 14, 2016, 7:05 a.m. OK GNU C++11 TESTS 23 217 0 2200
19604990 xyz.abc E Aug. 3, 2016, 8:17 p.m. OK GNU C++11 TESTS 23 218 0 2200
20812892 peterpan E Sept. 22, 2016, 8:37 a.m. OK GNU C++14 TESTS 23 187 0 2200
59099982 thebes E Aug. 19, 2019, 3:41 p.m. OK GNU C++14 TESTS 23 187 0 2200
53731514 HMS_Warspite E May 4, 2019, 7:28 a.m. OK GNU C++14 TESTS 23 202 0 2200
48607771 kzvd4729 E Jan. 20, 2019, 11:55 a.m. OK GNU C++14 TESTS 23 217 0 2200
56465745 zstu2018329621262 E July 3, 2019, 8:51 a.m. OK GNU C++14 TESTS 23 217 0 2200
47847048 yaser01 E Jan. 2, 2019, 3:19 p.m. OK GNU C++14 TESTS 23 218 0 2200
55176149 BamiTorabi E June 5, 2019, 6:47 p.m. OK GNU C++14 TESTS 23 218 0 2200
47039560 VeryLonelyRaccoon E Dec. 15, 2018, 2 p.m. OK GNU C++14 TESTS 23 233 0 2200
42751459 dakuhosu E Sept. 11, 2018, 2:39 a.m. OK GNU C++14 TESTS 23 233 51302400 2200
60491676 karanagarwalla E Sept. 13, 2019, 2:46 p.m. OK GNU C++14 TESTS 23 234 0 2200
55911039 chongryong E June 22, 2019, 2:01 a.m. OK GNU C++17 TESTS 23 156 35328000 2200
45178319 AngryAdhami E Nov. 1, 2018, 3:51 p.m. OK GNU C++17 TESTS 23 171 307200 2200
56493709 2018329621197 E July 4, 2019, 1:09 a.m. OK GNU C++17 TESTS 23 187 0 2200
47277278 1nikhil9 E Dec. 19, 2018, 8:15 p.m. OK GNU C++17 TESTS 23 187 0 2200
62097889 Optatum E Oct. 8, 2019, 8:09 a.m. OK GNU C++17 TESTS 23 202 0 2200
54807389 TungPM E May 29, 2019, 2:54 p.m. OK GNU C++17 TESTS 23 202 0 2200
51901325 amnesiac_dusk E March 27, 2019, 1:36 p.m. OK GNU C++17 TESTS 23 202 0 2200
47370321 ShJ E Dec. 22, 2018, 1:54 p.m. OK GNU C++17 TESTS 23 218 0 2200
55690678 hobgoblin23 E June 17, 2019, 6 p.m. OK GNU C++17 TESTS 23 218 0 2200
47038613 s-lissov E Dec. 15, 2018, 1:34 p.m. OK GNU C++17 TESTS 23 218 0 2200
19722776 pavel.rosputko E Aug. 8, 2016, 7:39 a.m. OK Haskell TESTS 23 1887 53248000 2200
19722754 pavel.rosputko E Aug. 8, 2016, 7:38 a.m. OK Haskell TESTS 23 1918 53248000 2200
15737983 mkirsche E Feb. 1, 2016, 6:38 p.m. OK Java 7 TESTS 23 655 0 2200
15584320 yfo E Jan. 26, 2016, 12:29 a.m. OK Java 7 TESTS 23 764 0 2200
15410529 aste E Jan. 17, 2016, 4:01 a.m. OK Java 7 TESTS 23 889 0 2200
59627850 Dukkha E Aug. 28, 2019, 4:44 p.m. OK Java 8 TESTS 23 452 0 2200
15324057 fnch E Jan. 12, 2016, 11:02 p.m. OK Java 8 TESTS 23 514 0 2200
50538698 vjvjain0 E Feb. 26, 2019, 4:58 p.m. OK Java 8 TESTS 23 529 0 2200
24521814 barakraganosungam E Feb. 8, 2017, 8:40 a.m. OK Java 8 TESTS 23 530 20889600 2200
15955267 opticoder E Feb. 11, 2016, 11:53 a.m. OK Java 8 TESTS 23 545 0 2200
25883075 RP_9 E March 28, 2017, 8:19 p.m. OK Java 8 TESTS 23 545 20582400 2200
38654069 PrakharJain E May 27, 2018, 11:25 a.m. OK Java 8 TESTS 23 655 0 2200
31590731 Maulik_Patel E Oct. 22, 2017, 3:19 a.m. OK Java 8 TESTS 23 670 20787200 2200
15560242 searcher774 E Jan. 24, 2016, 5:20 p.m. OK Java 8 TESTS 23 701 0 2200
15322767 I_Need_Alex_R_Coleman E Jan. 12, 2016, 8:19 p.m. OK Java 8 TESTS 23 763 0 2200
42436835 Slamur E Sept. 3, 2018, 5:52 p.m. OK Kotlin TESTS 23 592 0 2200
54563808 atsumumiya E May 24, 2019, 3:18 p.m. OK Kotlin TESTS 23 1185 0 2200
15322463 olderor E Jan. 12, 2016, 7:49 p.m. OK Mono C# TESTS 23 1060 102400 2200
15316263 AnatolyTolstobrov E Jan. 12, 2016, 1:42 p.m. OK MS C# TESTS 23 451 102400 2200
15346198 tangshitao E Jan. 14, 2016, 3:27 p.m. OK MS C++ TESTS 23 358 0 2200
16885323 liuyuhong E March 23, 2016, 11:38 a.m. OK MS C++ TESTS 23 374 2048000 2200
16553586 sister_what_hate_most E March 6, 2016, 2:23 p.m. OK MS C++ TESTS 23 405 0 2200
15455279 regkelvin E Jan. 20, 2016, 3:14 p.m. OK MS C++ TESTS 23 436 0 2200
41207576 vjudge4 E Aug. 4, 2018, 8:40 a.m. OK MS C++ TESTS 23 452 0 2200
16885351 liuyuhong E March 23, 2016, 11:40 a.m. OK MS C++ TESTS 23 467 2252800 2200
50512810 vjudge3 E Feb. 26, 2019, 3:08 a.m. OK MS C++ TESTS 23 498 0 2200
17686834 vjudge2 E May 2, 2016, 9:04 a.m. OK MS C++ TESTS 23 577 2048000 2200
15642058 Taube E Jan. 29, 2016, 8:42 a.m. OK MS C++ TESTS 23 639 0 2200
15573504 Perforator E Jan. 25, 2016, 1:04 p.m. OK MS C++ TESTS 23 639 2048000 2200
56503373 ZSTU-2018329621261 E July 4, 2019, 7:20 a.m. OK MS C++ 2017 TESTS 23 780 0 2200
45182974 wrong_lemma E Nov. 1, 2018, 6:13 p.m. OK PyPy 2 TESTS 23 998 512000 2200
45177590 AngryAdhami E Nov. 1, 2018, 3:31 p.m. OK PyPy 2 TESTS 23 998 512000 2200
16139585 mplaton E Feb. 18, 2016, 10:25 a.m. OK PyPy 2 TESTS 23 1560 614400 2200
42012925 tanghao E Aug. 24, 2018, 3:15 a.m. OK PyPy 2 TESTS 23 1575 921600 2200
16139475 mplaton E Feb. 18, 2016, 10:17 a.m. OK PyPy 2 TESTS 23 1840 614400 2200
15337079 minimario E Jan. 13, 2016, 8:44 p.m. OK PyPy 2 TESTS 23 1949 1024000 2200
51362592 souravrawat191 E March 16, 2019, 7:59 a.m. OK PyPy 3 TESTS 23 1668 819200 2200
26173364 0w1 E April 6, 2017, 3:10 p.m. OK PyPy 3 TESTS 23 1887 24166400 2200
26173382 0w1 E April 6, 2017, 3:11 p.m. OK PyPy 3 TESTS 23 1903 24371200 2200

remove filters

Back to search problems