Educational Codeforces Round 22

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
813 Educational Codeforces Round 22 FINISHED False 7200 240850524 June 5, 2017, 3:05 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 2516 ) E Army Creation PROGRAMMING binary search data structures 2300

B"As you might remember from our previous rounds, Vova really likes computer games. Now he is playing a strategy game known as Rage of Empires. In the game Vova can hire n different warriors; ith warrior has the type ai. Vova wants to create a balanced army hiring some subset of warriors. An army is called balanced if for each type of warrior present in the game there are not more than k warriors of this type in the army. Of course, Vova wants his army to be as large as possible. To make things more complicated, Vova has to consider q different plans of creating his army. ith plan allows him to hire only warriors whose numbers are not less than li and not greater than ri. Help Vova to determine the largest size of a balanced army for each plan. Be aware that the plans are given in a modified way. See input section for details. The first line contains two integers n and k (1 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89n, xe2 x80 x89k xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89100000). The second line contains n integers a1, a2, ... an (1 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89ai xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89100000). The third line contains one integer q (1 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89q xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89100000). Then q lines follow. ith line contains two numbers xi and yi which represent ith plan (1 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89xi, xe2 x80 x89yi xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89n). You have to keep track of the answer to the last plan (let's call it last). In the beginning last xe2 x80 x89= xe2 x80 x890. Then to restore values of li and ri for the ith plan, you have to do the following: Print q numbers. ith number must be equal to the maximum size of a balanced army when considering ith plan. In the first example the real plans are: "...

Tutorials

52410

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
27747315 fluffyowl E June 13, 2017, 2:15 a.m. OK D TESTS 34 967 53452800 2300
35970955 slavik228 E March 5, 2018, 3:51 p.m. OK FPC TESTS 34 404 33075200 2300
35970919 slavik228 E March 5, 2018, 3:50 p.m. OK FPC TESTS 34 405 33075200 2300
35970894 slavik228 E March 5, 2018, 3:50 p.m. OK FPC TESTS 34 405 33075200 2300
35970966 slavik228 E March 5, 2018, 3:51 p.m. OK FPC TESTS 34 421 33075200 2300
35970936 slavik228 E March 5, 2018, 3:51 p.m. OK FPC TESTS 34 421 33075200 2300
35970914 slavik228 E March 5, 2018, 3:50 p.m. OK FPC TESTS 34 436 33075200 2300
35969932 slavik228 E March 5, 2018, 3:11 p.m. OK FPC TESTS 34 577 135987200 2300
30306941 imone E Sept. 13, 2017, 12:35 p.m. OK GNU C++ TESTS 34 109 26316800 2300
28714572 tick E July 20, 2017, 6:42 a.m. OK GNU C++ TESTS 34 109 34918400 2300
27616102 AkaneSasu E June 6, 2017, 2:28 p.m. OK GNU C++ TESTS 34 109 39526400 2300
27596808 crowworks695 E June 5, 2017, 5:19 p.m. OK GNU C++ TESTS 34 109 122880000 2300
27684232 Talon_F E June 9, 2017, 7:21 a.m. OK GNU C++ TESTS 34 124 31027200 2300
36891150 GuessYCB E April 3, 2018, 1:32 a.m. OK GNU C++ TESTS 34 124 42393600 2300
40980799 ReaLNero1 E July 30, 2018, 5:42 p.m. OK GNU C++ TESTS 34 124 122880000 2300
36869689 luogu_bot2 E April 2, 2018, 6:29 a.m. OK GNU C++ TESTS 34 139 66355200 2300
36202145 luogu_bot2 E March 11, 2018, 1:59 p.m. OK GNU C++ TESTS 34 140 28774400 2300
28210142 zqh_wz E July 2, 2017, 12:27 p.m. OK GNU C++ TESTS 34 140 29593600 2300
47796163 rainboy E Dec. 31, 2018, 5:10 p.m. OK GNU C11 TESTS 34 499 44851200 2300
69215963 Rachel_in E Jan. 21, 2020, 12:38 a.m. OK GNU C++11 TESTS 34 93 33587200 2300
69215988 luogu_bot1 E Jan. 21, 2020, 12:40 a.m. OK GNU C++11 TESTS 34 93 33587200 2300
51278477 vjudge3 E March 14, 2019, 12:47 a.m. OK GNU C++11 TESTS 34 109 27545600 2300
50302676 nianheng E Feb. 22, 2019, 3:41 a.m. OK GNU C++11 TESTS 34 109 41574400 2300
50302679 luogu_bot3 E Feb. 22, 2019, 3:42 a.m. OK GNU C++11 TESTS 34 109 41574400 2300
52134690 yyyz04 E April 1, 2019, 1:04 a.m. OK GNU C++11 TESTS 34 124 27955200 2300
37894143 RNS_MHB E May 5, 2018, 1:55 a.m. OK GNU C++11 TESTS 34 124 28774400 2300
37894165 RNS_MHB E May 5, 2018, 1:57 a.m. OK GNU C++11 TESTS 34 124 28774400 2300
51278467 vjudge2 E March 14, 2019, 12:46 a.m. OK GNU C++11 TESTS 34 124 39526400 2300
63723865 hs-black E Oct. 29, 2019, 12:08 p.m. OK GNU C++11 TESTS 34 124 42188800 2300
53435659 risujiroh E April 27, 2019, 7:01 p.m. OK GNU C++14 TESTS 34 124 4505600 2300
27684075 hamayanhamayan E June 9, 2017, 7:11 a.m. OK GNU C++14 TESTS 34 124 17920000 2300
34004044 Marco_L_T E Jan. 8, 2018, 1:04 p.m. OK GNU C++14 TESTS 34 124 45158400 2300
51555666 Amorphophallus E March 20, 2019, 4:42 a.m. OK GNU C++14 TESTS 34 155 43827200 2300
31452686 ivan100sic E Oct. 17, 2017, 2:45 p.m. OK GNU C++14 TESTS 34 171 11366400 2300
27690717 jasonvictoryan E June 9, 2017, 2:11 p.m. OK GNU C++14 TESTS 34 171 27340800 2300
34355848 Rezwan.Arefin01 E Jan. 20, 2018, 2:29 p.m. OK GNU C++14 TESTS 34 171 29593600 2300
27707217 la1la1la E June 10, 2017, 1:35 p.m. OK GNU C++14 TESTS 34 171 30003200 2300
60709677 vjudge2 E Sept. 17, 2019, 7:32 a.m. OK GNU C++14 TESTS 34 171 34508800 2300
27602008 Bassel E June 5, 2017, 11:40 p.m. OK GNU C++14 TESTS 34 186 20070400 2300
60721329 vjudge5 E Sept. 17, 2019, 12:28 p.m. OK GNU C++17 TESTS 34 156 51814400 2300
49469914 markotee E Feb. 4, 2019, 4:41 p.m. OK GNU C++17 TESTS 34 171 8294400 2300
59550463 Asagami E Aug. 27, 2019, 2:30 a.m. OK GNU C++17 TESTS 34 171 27750400 2300
63216723 luogu_bot3 E Oct. 23, 2019, 6:21 a.m. OK GNU C++17 TESTS 34 171 40140800 2300
63299349 AlexPanda E Oct. 24, 2019, 1:51 p.m. OK GNU C++17 TESTS 34 171 63795200 2300
64877520 A_root_A E Nov. 14, 2019, 10:26 a.m. OK GNU C++17 TESTS 34 171 157798400 2300
57201108 Top_xiao E July 17, 2019, 1:45 p.m. OK GNU C++17 TESTS 34 186 51404800 2300
51667096 vjudge3 E March 22, 2019, 6:34 a.m. OK GNU C++17 TESTS 34 187 24883200 2300
52672112 HIT_Attacker E April 13, 2019, 8 a.m. OK GNU C++17 TESTS 34 187 29184000 2300
51564725 tiandong123 E March 20, 2019, 9:17 a.m. OK GNU C++17 TESTS 34 187 46182400 2300
65736129 synapse E Nov. 26, 2019, 7:53 a.m. OK Go TESTS 34 655 86425600 2300
27609923 U_Square E June 6, 2017, 9:40 a.m. OK Java 8 TESTS 34 358 15564800 2300
29631573 JialinOuyang E Aug. 20, 2017, 10:43 p.m. OK Java 8 TESTS 34 358 33280000 2300
27722499 Imaginary E June 11, 2017, 2:30 p.m. OK Java 8 TESTS 34 374 12288000 2300
61935769 ZeyadKhattab E Oct. 5, 2019, 5:41 p.m. OK Java 8 TESTS 34 420 14848000 2300
27595538 MazzForces E June 5, 2017, 4:50 p.m. OK Java 8 TESTS 34 421 26112000 2300
67144911 Taran_1407 E Dec. 18, 2019, 8:25 a.m. OK Java 8 TESTS 34 436 155136000 2300
27601078 uwi E June 5, 2017, 9:42 p.m. OK Java 8 TESTS 34 499 50483200 2300
42992456 IDzekh E Sept. 17, 2018, 11 a.m. OK Java 8 TESTS 34 514 18534400 2300
27591719 pitfall E June 5, 2017, 4:02 p.m. OK Java 8 TESTS 34 545 14848000 2300
27960333 Sagar_Savaliya E June 22, 2017, 8:23 a.m. OK Java 8 TESTS 34 624 58675200 2300
27905186 leign E June 19, 2017, 1:06 p.m. OK Mono C# TESTS 34 670 59289600 2300
29201257 leign E Aug. 4, 2017, 6:08 p.m. OK Mono C# TESTS 34 685 68608000 2300
55518681 cen E June 13, 2019, 7:07 a.m. OK Mono C# TESTS 34 873 58675200 2300
28369553 kawazaki E July 8, 2017, 12:58 p.m. OK MS C# TESTS 34 826 47513600 2300
53091780 vjudge5 E April 21, 2019, 11:34 a.m. OK MS C++ TESTS 34 170 40652800 2300
51279893 vjudge2 E March 14, 2019, 2:41 a.m. OK MS C++ TESTS 34 202 43110400 2300
67261577 vjudge5 E Dec. 20, 2019, 3:50 a.m. OK MS C++ TESTS 34 655 170598400 2300
27605678 azim__ E June 6, 2017, 5:32 a.m. OK MS C++ TESTS 34 716 22220800 2300
32086053 pschuprikov E Nov. 6, 2017, 1:30 a.m. OK Rust TESTS 34 982 23244800 2300

remove filters

Back to search problems