Codeforces Round 280 (Div. 2)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
492 Codeforces Round 280 (Div. 2) FINISHED False 7200 320160604 Dec. 1, 2014, 4:30 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 14314 ) C Vanya and Exams PROGRAMMING greedy sortings 1400

B"Vanya wants to pass n exams and get the academic scholarship. He will get the scholarship if the average grade mark for all the exams is at least avg. The exam grade cannot exceed r. Vanya has passed the exams and got grade ai for the i-th exam. To increase the grade for the i-th exam by 1 point, Vanya must write bi essays. He can raise the exam grade multiple times. What is the minimum number of essays that Vanya needs to write to get scholarship? The first line contains three integers n, r, avg (1 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89n xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89105, 1 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89r xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89109, 1 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89avg xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89min(r, xe2 x80 x89106)) -- the number of exams, the maximum grade and the required grade point average, respectively. Each of the following n lines contains space-separated integers ai and bi (1 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89ai xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89r, 1 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89bi xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89106). In the first line print the minimum number of essays. In the first sample Vanya can write 2 essays for the 3rd exam to raise his grade by 2 points and 2 essays for the 4th exam to raise his grade by 1 point. In the second sample, Vanya doesn't need to write any essays as his general point average already is above average."...

Tutorials

Разбор задач

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
46768028 hms1523 C Dec. 8, 2018, 3:23 p.m. OK Clang++17 Diagnostics TESTS 39 264 17817600 1400
41748092 cpy C Aug. 18, 2018, 8:24 a.m. OK D TESTS 39 109 0 1400
55335082 bin9638 C June 9, 2019, 1:17 p.m. OK FPC TESTS 39 62 1740800 1400
37589521 luping C April 25, 2018, 7:04 a.m. OK FPC TESTS 39 62 19046400 1400
55336766 quocnguyentien C June 9, 2019, 2:16 p.m. OK FPC TESTS 39 77 1843200 1400
37589021 luping C April 25, 2018, 6:32 a.m. OK FPC TESTS 39 93 4915200 1400
37589139 luping C April 25, 2018, 6:39 a.m. OK FPC TESTS 39 93 11059200 1400
55335062 biabeogo147 C June 9, 2019, 1:16 p.m. OK FPC TESTS 39 280 1638400 1400
55335137 bin9638 C June 9, 2019, 1:19 p.m. OK FPC TESTS 39 280 1945600 1400
40987589 ReaLNero1 C July 30, 2018, 9:21 p.m. OK GNU C TESTS 39 46 819200 1400
42335510 vjudge1 C Sept. 1, 2018, 1:37 p.m. OK GNU C++ TESTS 39 31 1433600 1400
38628456 vjudge2 C May 26, 2018, 8:23 a.m. OK GNU C++ TESTS 39 31 1638400 1400
40194566 LuckyCloud C July 11, 2018, 8:27 a.m. OK GNU C++ TESTS 39 46 2457600 1400
37253035 vjudge4 C April 12, 2018, 2:17 p.m. OK GNU C++ TESTS 39 46 4096000 1400
36498340 bojverdict1 C March 22, 2018, 10:54 a.m. OK GNU C++ TESTS 39 46 4096000 1400
37251080 vjudge2 C April 12, 2018, 1:20 p.m. OK GNU C++ TESTS 39 46 4300800 1400
36498551 bojverdict2 C March 22, 2018, 11:02 a.m. OK GNU C++ TESTS 39 46 4300800 1400
36498136 bojverdict1 C March 22, 2018, 10:46 a.m. OK GNU C++ TESTS 39 46 4300800 1400
38142559 arg_53 C May 12, 2018, 3:31 p.m. OK GNU C++ TESTS 39 46 4608000 1400
36980804 memoo C April 4, 2018, 7:37 p.m. OK GNU C++ TESTS 39 46 4915200 1400
57814761 rainboy C July 26, 2019, 7:06 p.m. OK GNU C11 TESTS 39 61 1228800 1400
61797243 kaiboy C Oct. 3, 2019, 5:40 p.m. OK GNU C11 TESTS 39 61 1228800 1400
65349149 vjudge3 C Nov. 19, 2019, 1:39 p.m. OK GNU C11 TESTS 39 61 1638400 1400
44827938 luogu_bot4 C Oct. 25, 2018, 7:08 a.m. OK GNU C++11 TESTS 39 31 614400 1400
44827902 Rayment C Oct. 25, 2018, 7:07 a.m. OK GNU C++11 TESTS 39 31 614400 1400
44819161 awimrain C Oct. 25, 2018, 12:18 a.m. OK GNU C++11 TESTS 39 31 819200 1400
44819068 litble C Oct. 25, 2018, 12:12 a.m. OK GNU C++11 TESTS 39 31 819200 1400
42000263 hoangthuc701 C Aug. 23, 2018, 2:39 p.m. OK GNU C++11 TESTS 39 31 1638400 1400
65662994 vjudge4 C Nov. 24, 2019, 1:08 p.m. OK GNU C++11 TESTS 39 31 1638400 1400
58327469 luogu_bot1 C Aug. 5, 2019, 8:16 a.m. OK GNU C++11 TESTS 39 46 614400 1400
68878433 shubhamchandra C Jan. 15, 2020, 5:47 p.m. OK GNU C++11 TESTS 39 46 819200 1400
69216210 cor001 C Jan. 21, 2020, 12:57 a.m. OK GNU C++11 TESTS 39 46 819200 1400
65663430 vjudge1 C Nov. 24, 2019, 1:18 p.m. OK GNU C++11 TESTS 39 46 819200 1400
69806549 Scut82 C Jan. 30, 2020, 2:11 a.m. OK GNU C++14 TESTS 39 46 1228800 1400
54637626 chochu C May 25, 2019, 5:55 p.m. OK GNU C++14 TESTS 39 46 1536000 1400
64503340 b_pitam C Nov. 8, 2019, 5:36 a.m. OK GNU C++14 TESTS 39 46 1536000 1400
58322784 bojverdict1 C Aug. 5, 2019, 6:35 a.m. OK GNU C++14 TESTS 39 61 819200 1400
55408490 ameenshaikh101 C June 10, 2019, 6:03 p.m. OK GNU C++14 TESTS 39 61 1638400 1400
68010866 Dr.Dendro C Dec. 31, 2019, 3:42 p.m. OK GNU C++14 TESTS 39 61 1638400 1400
51425676 TheNoopestMan C March 17, 2019, 7:04 p.m. OK GNU C++14 TESTS 39 61 3174400 1400
65404374 KeepSmile2020 C Nov. 20, 2019, 2:05 a.m. OK GNU C++14 TESTS 39 62 819200 1400
61788030 bl4ckfr05t C Oct. 3, 2019, 3:01 p.m. OK GNU C++14 TESTS 39 62 819200 1400
68673211 ankit_2305 C Jan. 12, 2020, 5:32 p.m. OK GNU C++14 TESTS 39 62 819200 1400
47620251 vjudge5 C Dec. 28, 2018, 12:28 p.m. OK GNU C++17 TESTS 39 46 819200 1400
47359897 LLENN C Dec. 22, 2018, 8:08 a.m. OK GNU C++17 TESTS 39 46 819200 1400
45905915 Monster21 C Nov. 18, 2018, 8:23 a.m. OK GNU C++17 TESTS 39 46 1536000 1400
56021870 dauzee C June 25, 2019, 4:12 a.m. OK GNU C++17 TESTS 39 46 1638400 1400
56156631 itsme_imdb C June 27, 2019, 10:31 a.m. OK GNU C++17 TESTS 39 46 1638400 1400
61900679 das67333 C Oct. 5, 2019, 8:29 a.m. OK GNU C++17 TESTS 39 61 819200 1400
59273705 copperium C Aug. 22, 2019, 1:41 p.m. OK GNU C++17 TESTS 39 61 819200 1400
58335604 circless C Aug. 5, 2019, 11:21 a.m. OK GNU C++17 TESTS 39 61 819200 1400
47620426 MKID C Dec. 28, 2018, 12:33 p.m. OK GNU C++17 TESTS 39 61 819200 1400
47619521 vjudge4 C Dec. 28, 2018, 12:10 p.m. OK GNU C++17 TESTS 39 61 1024000 1400
51440328 fayzzz C March 18, 2019, 9:32 a.m. OK Go TESTS 39 156 5324800 1400
51439620 fayzzz C March 18, 2019, 9:04 a.m. OK Go TESTS 39 171 5324800 1400
50626227 yaminote C March 1, 2019, 6:12 a.m. OK Java 8 TESTS 39 139 0 1400
55119141 prem_cse C June 5, 2019, 10:12 a.m. OK Java 8 TESTS 39 140 0 1400
39846833 cis_pie C July 1, 2018, 5:48 p.m. OK Java 8 TESTS 39 155 0 1400
63987796 Omar_Tarek C Nov. 1, 2019, 12:16 p.m. OK Java 8 TESTS 39 156 0 1400
38448245 ViciousCoder C May 20, 2018, 5:37 a.m. OK Java 8 TESTS 39 156 0 1400
61929546 ashcodish C Oct. 5, 2019, 3:48 p.m. OK Java 8 TESTS 39 170 0 1400
57849168 _mcubed123 C July 27, 2019, 12:26 p.m. OK Java 8 TESTS 39 171 0 1400
59526461 maheshwari29 C Aug. 26, 2019, 1:33 p.m. OK Java 8 TESTS 39 171 0 1400
61398907 deepak4669 C Sept. 28, 2019, 4:10 a.m. OK Java 8 TESTS 39 171 0 1400
59684500 Heisen_Berg C Aug. 29, 2019, 11:52 p.m. OK Java 8 TESTS 39 171 0 1400
39762906 0442A403 C June 29, 2018, 8:37 a.m. OK Kotlin TESTS 39 296 22528000 1400
62945868 bachnx_epu C Oct. 19, 2019, 5:18 p.m. OK Kotlin TESTS 39 451 0 1400
40665361 Skndr801 C July 23, 2018, 9:24 a.m. OK Mono C# TESTS 39 109 20070400 1400
44503696 nemars C Oct. 18, 2018, 4:58 p.m. OK Mono C# TESTS 39 280 10035200 1400
47037863 vjudge4 C Dec. 15, 2018, 1:14 p.m. OK MS C++ TESTS 39 46 819200 1400
46701112 vjudge5 C Dec. 7, 2018, 2:33 a.m. OK MS C++ TESTS 39 46 819200 1400
58854834 vjudge3 C Aug. 15, 2019, 8:53 a.m. OK MS C++ TESTS 39 46 819200 1400
64202439 vjudge2 C Nov. 4, 2019, 11:52 a.m. OK MS C++ TESTS 39 46 819200 1400
44469206 vjudge4 C Oct. 18, 2018, 5:10 a.m. OK MS C++ TESTS 39 46 1024000 1400
45902516 vjudge1 C Nov. 18, 2018, 6:12 a.m. OK MS C++ TESTS 39 46 1024000 1400
47037419 vjudge4 C Dec. 15, 2018, 12:58 p.m. OK MS C++ TESTS 39 46 1638400 1400
45905945 vjudge4 C Nov. 18, 2018, 8:24 a.m. OK MS C++ TESTS 39 46 1638400 1400
58889625 vjudge3 C Aug. 16, 2019, 4:48 a.m. OK MS C++ TESTS 39 46 1638400 1400
58851934 vjudge2 C Aug. 15, 2019, 7:49 a.m. OK MS C++ TESTS 39 46 1638400 1400
66523338 lcjWA C Dec. 9, 2019, 1:56 a.m. OK MS C++ 2017 TESTS 39 77 1638400 1400
60187318 CtrlAlt C Sept. 6, 2019, 7:11 p.m. OK MS C++ 2017 TESTS 39 93 3174400 1400
57786334 IbraheemJanajreh C July 26, 2019, 7:56 a.m. OK MS C++ 2017 TESTS 39 186 1638400 1400
64127582 vjudge2 C Nov. 3, 2019, 5:34 a.m. OK MS C++ 2017 TESTS 39 202 1638400 1400
53822924 saofeng666 C May 6, 2019, 2:15 p.m. OK MS C++ 2017 TESTS 39 202 1638400 1400
64126559 vjudge2 C Nov. 3, 2019, 5:04 a.m. OK MS C++ 2017 TESTS 39 202 1843200 1400
66402099 vjudge1 C Dec. 6, 2019, 12:36 p.m. OK MS C++ 2017 TESTS 39 202 16281600 1400
43994609 mayakin C Oct. 8, 2018, 10:52 a.m. OK PHP TESTS 39 374 5939200 1400
56728296 Quirinius C July 8, 2019, 9:44 p.m. OK PyPy 2 TESTS 39 296 16076800 1400
52178387 kabeer27 C April 1, 2019, 3:57 p.m. OK PyPy 2 TESTS 39 451 12492800 1400
42256584 david_varela C Aug. 29, 2018, 9:59 p.m. OK PyPy 2 TESTS 39 576 9830400 1400
47520847 jaaguptamme C Dec. 26, 2018, 1 p.m. OK PyPy 2 TESTS 39 919 8294400 1400
66234110 slam3085 C Dec. 3, 2019, 3:29 p.m. OK PyPy 3 TESTS 39 421 12390400 1400
65507333 Just_a_game_on_your_lips C Nov. 22, 2019, 12:14 a.m. OK PyPy 3 TESTS 39 561 10956800 1400
44326190 FahimSifnatul C Oct. 14, 2018, 4:10 p.m. OK PyPy 3 TESTS 39 576 10547200 1400
64661057 3x7 C Nov. 10, 2019, 8:58 p.m. OK PyPy 3 TESTS 39 592 10854400 1400
68827909 beethoven97 C Jan. 14, 2020, 8:06 p.m. OK PyPy 3 TESTS 39 607 20070400 1400
68576625 gaidash C Jan. 11, 2020, 10:10 a.m. OK PyPy 3 TESTS 39 998 13414400 1400
42233035 franckmy C Aug. 29, 2018, 7:51 a.m. OK Python 2 TESTS 39 499 6963200 1400
62810990 soumyasarkar1998 C Oct. 17, 2019, 3:11 p.m. OK Python 2 TESTS 39 529 10444800 1400
40203149 aBigCrunch C July 11, 2018, 1:48 p.m. OK Python 2 TESTS 39 545 11673600 1400
68434424 bsr011 C Jan. 9, 2020, 8:22 a.m. OK Python 2 TESTS 39 561 19660800 1400
43667076 Onesh0t C Oct. 2, 2018, 12:33 a.m. OK Python 2 TESTS 39 592 10547200 1400
51279850 Claustrophobic_Penguin C March 14, 2019, 2:39 a.m. OK Python 2 TESTS 39 592 11059200 1400
42256588 david_varela C Aug. 29, 2018, 10 p.m. OK Python 2 TESTS 39 608 10035200 1400
58623499 bergus C Aug. 11, 2019, 4:35 p.m. OK Python 3 TESTS 39 405 16281600 1400
58623076 bergus C Aug. 11, 2019, 4:27 p.m. OK Python 3 TESTS 39 421 16588800 1400
47084819 uptosky C Dec. 16, 2018, 12:47 a.m. OK Python 3 TESTS 39 436 11059200 1400
44899359 jst_forfun C Oct. 26, 2018, 8:20 a.m. OK Python 3 TESTS 39 451 9728000 1400
47775314 qjhsly C Dec. 31, 2018, 3:11 a.m. OK Python 3 TESTS 39 451 11059200 1400
48547049 amirah C Jan. 18, 2019, 8:18 p.m. OK Python 3 TESTS 39 452 9523200 1400
50278418 ashok123 C Feb. 21, 2019, 11:29 a.m. OK Python 3 TESTS 39 452 9728000 1400
47717052 18n1600017790 C Dec. 30, 2018, 8:33 a.m. OK Python 3 TESTS 39 482 9420800 1400
63784364 sioiyan C Oct. 30, 2019, 11:55 a.m. OK Python 3 TESTS 39 483 8396800 1400
47757576 SirULG C Dec. 30, 2018, 4:21 p.m. OK Python 3 TESTS 39 483 9011200 1400

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