Educational Codeforces Round 7

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
622 Educational Codeforces Round 7 FINISHED False 7200 276706799 Feb. 10, 2016, 3 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 3894 ) F The Sum of the k-th Powers PROGRAMMING math 2600

B'There are well-known formulas: , , . Also mathematicians found similar formulas for higher degrees. Find the value of the sum modulo 109 xe2 x80 x89+ xe2 x80 x897 (so you should find the remainder after dividing the answer by the value 109 xe2 x80 x89+ xe2 x80 x897). The only line contains two integers n, xe2 x80 x89k (1 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89n xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89109, xe2 x80 x890 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89k xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89106). Print the only integer a -- the remainder after dividing the value of the sum by the value 109 xe2 x80 x89+ xe2 x80 x897.'...

Tutorials

Editorial of Educational Codeforces Round 7

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
53648966 hos.lyric F May 1, 2019, 9:55 p.m. OK D TESTS 21 873 118272000 2600
18015704 ArGuTe F May 21, 2016, 8:45 a.m. OK FPC TESTS 21 1638 17817600 2600
18015653 ArGuTe F May 21, 2016, 8:40 a.m. OK FPC TESTS 21 1715 17817600 2600
15963355 sgtlaugh F Feb. 11, 2016, 8:02 p.m. OK GNU C TESTS 21 1544 0 2600
15963241 sgtlaugh F Feb. 11, 2016, 7:53 p.m. OK GNU C TESTS 21 1560 0 2600
15963385 sgtlaugh F Feb. 11, 2016, 8:05 p.m. OK GNU C TESTS 21 1575 0 2600
15963262 sgtlaugh F Feb. 11, 2016, 7:55 p.m. OK GNU C TESTS 21 1575 0 2600
15963448 sgtlaugh F Feb. 11, 2016, 8:10 p.m. OK GNU C TESTS 21 1606 0 2600
15963376 sgtlaugh F Feb. 11, 2016, 8:03 p.m. OK GNU C TESTS 21 1606 0 2600
15963293 sgtlaugh F Feb. 11, 2016, 7:58 p.m. OK GNU C TESTS 21 1606 0 2600
15961423 sgtlaugh F Feb. 11, 2016, 5:58 p.m. OK GNU C TESTS 21 1668 0 2600
15961373 sgtlaugh F Feb. 11, 2016, 5:56 p.m. OK GNU C TESTS 21 1700 3993600 2600
17830364 TsReaper F May 10, 2016, 10:50 a.m. OK GNU C TESTS 21 1731 9932800 2600
15963141 sgtlaugh F Feb. 11, 2016, 7:46 p.m. OK GNU C++ TESTS 21 124 14028800 2600
15963039 sgtlaugh F Feb. 11, 2016, 7:37 p.m. OK GNU C++ TESTS 21 124 18022400 2600
15962979 sgtlaugh F Feb. 11, 2016, 7:33 p.m. OK GNU C++ TESTS 21 124 18022400 2600
26188410 Aralon F April 7, 2017, 9:20 a.m. OK GNU C++ TESTS 21 124 21913600 2600
15963129 sgtlaugh F Feb. 11, 2016, 7:44 p.m. OK GNU C++ TESTS 21 139 14028800 2600
17809853 10110057 F May 8, 2016, 3:40 p.m. OK GNU C++ TESTS 21 139 42291200 2600
40985235 ReaLNero1 F July 30, 2018, 7:50 p.m. OK GNU C++ TESTS 21 140 18022400 2600
19480251 qwb F July 29, 2016, 1:02 p.m. OK GNU C++ TESTS 21 140 18022400 2600
15962969 sgtlaugh F Feb. 11, 2016, 7:32 p.m. OK GNU C++ TESTS 21 140 18022400 2600
18212324 dwjshift F June 2, 2016, 7:44 a.m. OK GNU C++ TESTS 21 140 19456000 2600
16054102 sid02 F Feb. 16, 2016, 10:37 a.m. OK GNU C11 TESTS 21 1560 0 2600
61988401 SSL_XJQ F Oct. 6, 2019, 2:18 p.m. OK GNU C++11 TESTS 21 109 19865600 2600
56303211 LJC00118 F June 30, 2019, 10:11 a.m. OK GNU C++11 TESTS 21 109 28057600 2600
56303262 LJC00118 F June 30, 2019, 10:12 a.m. OK GNU C++11 TESTS 21 109 28057600 2600
44427218 Re_xy F Oct. 17, 2018, 5:22 a.m. OK GNU C++11 TESTS 21 109 28876800 2600
51600625 lrvideckis F March 21, 2019, 3:21 a.m. OK GNU C++11 TESTS 21 124 18022400 2600
56832306 luogu_bot1 F July 11, 2019, 7:32 a.m. OK GNU C++11 TESTS 21 124 19865600 2600
63265838 dqa2020 F Oct. 23, 2019, 11:57 p.m. OK GNU C++11 TESTS 21 124 20889600 2600
68707175 wibE F Jan. 13, 2020, 11:45 a.m. OK GNU C++11 TESTS 21 124 22118400 2600
56303282 LJC00118 F June 30, 2019, 10:13 a.m. OK GNU C++11 TESTS 21 124 28057600 2600
56710057 ButterflyDew F July 8, 2019, 12:26 p.m. OK GNU C++11 TESTS 21 124 30003200 2600
55590668 rightways F June 15, 2019, 12:11 p.m. OK GNU C++14 TESTS 21 31 0 2600
45244188 vjudge4 F Nov. 3, 2018, 1:06 p.m. OK GNU C++14 TESTS 21 124 18022400 2600
52513229 vjudge1 F April 9, 2019, 2:14 a.m. OK GNU C++14 TESTS 21 139 32256000 2600
28421160 Shik F July 11, 2017, 6:17 a.m. OK GNU C++14 TESTS 21 140 27033600 2600
45242841 vjudge3 F Nov. 3, 2018, 12:26 p.m. OK GNU C++14 TESTS 21 140 90419200 2600
33373210 Marco_L_T F Dec. 18, 2017, 8:56 a.m. OK GNU C++14 TESTS 21 155 59392000 2600
43497626 w446506278 F Sept. 27, 2018, 3:31 p.m. OK GNU C++14 TESTS 21 156 18022400 2600
64789097 Gromah F Nov. 13, 2019, 10:25 a.m. OK GNU C++14 TESTS 21 156 32051200 2600
24470519 rqgao2014 F Feb. 6, 2017, 2:49 p.m. OK GNU C++14 TESTS 21 156 52019200 2600
20561098 ZhouRunlong F Sept. 13, 2016, 6:23 a.m. OK GNU C++14 TESTS 21 171 20992000 2600
63104850 misir F Oct. 22, 2019, 3:50 a.m. OK GNU C++17 TESTS 21 140 18022400 2600
40691976 cy1999 F July 24, 2018, 6:20 a.m. OK GNU C++17 TESTS 21 140 28057600 2600
58665583 BOGDAN_ F Aug. 12, 2019, 12:29 p.m. OK GNU C++17 TESTS 21 155 33177600 2600
56396660 Yzm007 F July 1, 2019, 2:54 p.m. OK GNU C++17 TESTS 21 171 57139200 2600
44476552 BlackRain F Oct. 18, 2018, 9:17 a.m. OK GNU C++17 TESTS 21 217 99430400 2600
63910312 ST_C F Oct. 31, 2019, 8:01 a.m. OK GNU C++17 TESTS 21 234 40038400 2600
58707966 shuerss F Aug. 13, 2019, 11:05 a.m. OK GNU C++17 TESTS 21 358 20070400 2600
66145588 904833505 F Dec. 1, 2019, 4:24 p.m. OK GNU C++17 TESTS 21 358 24064000 2600
56413985 interestingLSY F July 2, 2019, 2:59 a.m. OK GNU C++17 TESTS 21 358 34713600 2600
66206552 904833505 F Dec. 3, 2019, 3:31 a.m. OK GNU C++17 TESTS 21 373 24064000 2600
15958653 weedjy F Feb. 11, 2016, 3:21 p.m. OK Go TESTS 21 1231 19763200 2600
15958588 weedjy F Feb. 11, 2016, 3:16 p.m. OK Go TESTS 21 1248 19763200 2600
44751248 Ahmad F Oct. 23, 2018, 8:03 p.m. OK Java 8 TESTS 21 857 23142400 2600
15944672 uwi F Feb. 10, 2016, 5:33 p.m. OK Java 8 TESTS 21 1184 12697600 2600
52000980 BiIIy F March 30, 2019, 6:12 a.m. OK Java 8 TESTS 21 1184 25702400 2600
16042527 fmoraes F Feb. 15, 2016, 10:12 p.m. OK Java 8 TESTS 21 1279 33484800 2600
43595232 guptautkarsh028 F Sept. 30, 2018, 6:35 a.m. OK Java 8 TESTS 21 1325 22220800 2600
18055328 shuaige123 F May 24, 2016, 12:41 p.m. OK Java 8 TESTS 21 1981 29491200 2600
55922364 wesnerm F June 22, 2019, 7:57 a.m. OK Mono C# TESTS 21 966 17305600 2600
15966487 eitaho F Feb. 12, 2016, 6:31 a.m. OK MS C# TESTS 21 1902 16793600 2600
59215117 vjudge3 F Aug. 21, 2019, 9:57 a.m. OK MS C++ TESTS 21 654 88985600 2600
15978809 balalaika F Feb. 12, 2016, 9:48 p.m. OK MS C++ TESTS 21 967 3993600 2600
15978955 balalaika F Feb. 12, 2016, 10:05 p.m. OK MS C++ TESTS 21 1029 0 2600
46674836 vjudge4 F Dec. 6, 2018, 9:10 a.m. OK MS C++ TESTS 21 1076 16076800 2600
56189893 vjudge2 F June 28, 2019, 6:59 a.m. OK MS C++ TESTS 21 1092 24064000 2600
62394019 vjudge2 F Oct. 12, 2019, 4:28 a.m. OK MS C++ TESTS 21 1092 24064000 2600
50874851 vjudge2 F March 6, 2019, 5:29 a.m. OK MS C++ TESTS 21 1107 11980800 2600
54090863 vjudge1 F May 14, 2019, 10:44 a.m. OK MS C++ TESTS 21 1107 24064000 2600
55000929 vjudge1 F June 3, 2019, 4:27 a.m. OK MS C++ TESTS 21 1606 24064000 2600
59120472 vjudge5 F Aug. 20, 2019, 4:55 a.m. OK MS C++ TESTS 21 1606 32051200 2600
69398537 pichulia F Jan. 23, 2020, 7:26 a.m. OK MS C++ 2017 TESTS 21 1076 32051200 2600
59120464 yyoooo F Aug. 20, 2019, 4:55 a.m. OK MS C++ 2017 TESTS 21 1653 32051200 2600
55828991 YESMAths F June 20, 2019, 12:16 p.m. OK PyPy 2 TESTS 21 1778 100659200 2600

remove filters

Back to search problems