Codeforces Beta Round 91 (Div. 1 Only)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
121 Codeforces Beta Round 91 (Div. 1 Only) FINISHED False 7200 418229951 Oct. 27, 2011, 3 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 9378 ) A Lucky Sum PROGRAMMING implementation 1400

B'Petya loves lucky numbers. Everybody knows that lucky numbers are positive integers whose decimal representation contains only the lucky digits 4 and 7. For example, numbers 47, 744, 4 are lucky and 5, 17, 467 are not. Let next(x) be the minimum lucky number which is larger than or equals x. Petya is interested what is the value of the expression next(l) xe2 x80 x89+ xe2 x80 x89next(l xe2 x80 x89+ xe2 x80 x891) xe2 x80 x89+ xe2 x80 x89... xe2 x80 x89+ xe2 x80 x89next(r xe2 x80 x89- xe2 x80 x891) xe2 x80 x89+ xe2 x80 x89next(r). Help him solve this problem. The single line contains two integers l and r (1 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89l xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89r xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89109) -- the left and right interval limits. In the single line print the only number -- the sum next(l) xe2 x80 x89+ xe2 x80 x89next(l xe2 x80 x89+ xe2 x80 x891) xe2 x80 x89+ xe2 x80 x89... xe2 x80 x89+ xe2 x80 x89next(r xe2 x80 x89- xe2 x80 x891) xe2 x80 x89+ xe2 x80 x89next(r). Please do not use the %lld specificator to read or write 64-bit integers in C++. It is preferred to use the cin, cout streams or the %I64d specificator. In the first sample: next(2) xe2 x80 x89+ xe2 x80 x89next(3) xe2 x80 x89+ xe2 x80 x89next(4) xe2 x80 x89+ xe2 x80 x89next(5) xe2 x80 x89+ xe2 x80 x89next(6) xe2 x80 x89+ xe2 x80 x89next(7) xe2 x80 x89= xe2 x80 x894 xe2 x80 x89+ xe2 x80 x894 xe2 x80 x89+ xe2 x80 x894 xe2 x80 x89+ xe2 x80 x897 xe2 x80 x89+ xe2 x80 x897 xe2 x80 x89+ xe2 x80 x897 xe2 x80 x89= xe2 x80 x8933 In the second sample: next(7) xe2 x80 x89= xe2 x80 x897'...

Tutorials

Разбор задач

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
903387 andrevs A Nov. 25, 2011, 6:30 p.m. OK Delphi TESTS 40 30 819200 1400
1497171 Sert A April 8, 2012, 7:14 a.m. OK Delphi TESTS 40 30 921600 1400
1293913 Ramp A March 6, 2012, 11:22 a.m. OK Delphi TESTS 40 30 921600 1400
841834 Mazeev A Nov. 8, 2011, 4:43 p.m. OK Delphi TESTS 40 30 921600 1400
802240 Shapo A Oct. 27, 2011, 3:33 p.m. OK Delphi TESTS 40 30 921600 1400
801828 Depool A Oct. 27, 2011, 3:28 p.m. OK Delphi TESTS 40 30 921600 1400
801376 Nikolai A Oct. 27, 2011, 3:23 p.m. OK Delphi TESTS 40 30 921600 1400
800789 masha A Oct. 27, 2011, 3:17 p.m. OK Delphi TESTS 40 30 921600 1400
1632543 Mosyagin A April 27, 2012, 4:39 p.m. OK Delphi TESTS 40 30 921600 1400
801920 matushkin A Oct. 27, 2011, 3:29 p.m. OK Delphi TESTS 40 30 1024000 1400
15142266 HappyNewYearMike A Dec. 31, 2015, 10:14 p.m. OK FPC TESTS 42 15 102400 1400
12309438 VAVAvile A Aug. 2, 2015, 2:29 a.m. OK FPC TESTS 42 15 102400 1400
10255723 Didred A March 13, 2015, 9:23 a.m. OK FPC TESTS 42 15 102400 1400
4032599 Omelianenko A July 6, 2013, 9:02 p.m. OK FPC TESTS 40 15 102400 1400
22705068 Jicote A Dec. 5, 2016, 5:29 a.m. OK FPC TESTS 42 15 204800 1400
24736325 treash A Feb. 17, 2017, 10:37 a.m. OK FPC TESTS 42 15 1740800 1400
4132243 vjudge1 A July 22, 2013, 3:08 a.m. OK FPC TESTS 40 15 80179200 1400
6990584 graceoflives A July 1, 2014, 8:28 a.m. OK FPC TESTS 40 30 102400 1400
4322829 tsunayoshi A Aug. 22, 2013, 6:55 a.m. OK FPC TESTS 40 30 204800 1400
6105471 Yury_Bandarchuk A March 22, 2014, 1:31 p.m. OK FPC TESTS 40 30 921600 1400
14873461 hznu3 A Dec. 19, 2015, 10:07 a.m. OK GNU C TESTS 42 15 0 1400
11957306 NoSoul A July 7, 2015, 8:02 a.m. OK GNU C TESTS 42 15 0 1400
4134455 vjudge1 A July 22, 2013, 10 a.m. OK GNU C TESTS 40 15 0 1400
4133401 vjudge3 A July 22, 2013, 7:23 a.m. OK GNU C TESTS 40 15 0 1400
4132249 vjudge3 A July 22, 2013, 3:10 a.m. OK GNU C TESTS 40 15 0 1400
4132143 vjudge1 A July 22, 2013, 2:47 a.m. OK GNU C TESTS 40 15 0 1400
17470315 vjudge4 A April 23, 2016, 1:27 p.m. OK GNU C TESTS 42 15 2048000 1400
11064353 tempTest1 A May 10, 2015, 4:37 p.m. OK GNU C TESTS 42 30 102400 1400
813892 nobita_isc A Oct. 29, 2011, 6:12 a.m. OK GNU C TESTS 40 30 1331200 1400
813752 PCCA A Oct. 29, 2011, 4:34 a.m. OK GNU C TESTS 40 30 1331200 1400
4132161 vjudge1 A July 22, 2013, 2:49 a.m. OK GNU C++ TESTS 40 0 0 1400
814379 like A Oct. 29, 2011, 12:20 p.m. OK GNU C++ TESTS 40 10 1433600 1400
800994 nadeem A Oct. 27, 2011, 3:19 p.m. OK GNU C++ TESTS 40 10 1433600 1400
800542 stephydx A Oct. 27, 2011, 3:15 p.m. OK GNU C++ TESTS 40 10 1433600 1400
799720 flashmt A Oct. 27, 2011, 3:08 p.m. OK GNU C++ TESTS 40 10 1433600 1400
799655 totalfrank A Oct. 27, 2011, 3:08 p.m. OK GNU C++ TESTS 40 10 1433600 1400
799485 cylixstar A Oct. 27, 2011, 3:07 p.m. OK GNU C++ TESTS 40 10 1433600 1400
799380 maksay A Oct. 27, 2011, 3:06 p.m. OK GNU C++ TESTS 40 10 1433600 1400
800336 zpl1 A Oct. 27, 2011, 3:13 p.m. OK GNU C++ TESTS 40 10 2969600 1400
32372104 JRQBill A Nov. 17, 2017, 7:55 a.m. OK GNU C++ TESTS 42 15 0 1400
9803119 KhaledKEE A Feb. 11, 2015, 9:48 p.m. OK GNU C++0x TESTS 42 15 0 1400
10276602 MostafaMohamedAhmed A March 14, 2015, 6 p.m. OK GNU C++0x TESTS 42 15 0 1400
10133433 YoussefKayyali A March 3, 2015, 1:52 p.m. OK GNU C++0x TESTS 42 15 0 1400
9803125 KhaledKEE A Feb. 11, 2015, 9:50 p.m. OK GNU C++0x TESTS 42 15 0 1400
9801300 Thug A Feb. 11, 2015, 5:52 p.m. OK GNU C++0x TESTS 42 15 0 1400
9796980 Yousry A Feb. 11, 2015, 9:46 a.m. OK GNU C++0x TESTS 42 15 0 1400
3993045 A_Le_K A June 29, 2013, 5:21 p.m. OK GNU C++0x TESTS 40 15 0 1400
3313260 lemur A March 14, 2013, 3:10 a.m. OK GNU C++0x TESTS 40 15 0 1400
3081425 Doxer A Feb. 7, 2013, 3:04 p.m. OK GNU C++0x TESTS 40 15 102400 1400
10206325 CodeTamer A March 8, 2015, 12:44 p.m. OK GNU C++0x TESTS 42 15 204800 1400
59101660 rainboy A Aug. 19, 2019, 4:20 p.m. OK GNU C11 TESTS 42 31 0 1400
66132703 k_ayushh A Dec. 1, 2019, 11:05 a.m. OK GNU C11 TESTS 42 31 0 1400
63392705 kaiboy A Oct. 25, 2019, 3:44 p.m. OK GNU C11 TESTS 42 31 0 1400
63411553 kaiboy A Oct. 26, 2019, 12:56 a.m. OK GNU C11 TESTS 42 31 0 1400
65694217 AurumnPegasus A Nov. 25, 2019, 6:59 a.m. OK GNU C11 TESTS 42 31 102400 1400
32347902 anas.didi95 A Nov. 16, 2017, 5:49 a.m. OK GNU C++11 TESTS 42 15 0 1400
32216691 ...I_am_Kira... A Nov. 11, 2017, 10:33 a.m. OK GNU C++11 TESTS 42 15 0 1400
30485288 gabrielcrds A Sept. 18, 2017, 10:31 p.m. OK GNU C++11 TESTS 42 15 0 1400
32141397 coder_04 A Nov. 8, 2017, 1:59 p.m. OK GNU C++11 TESTS 42 15 0 1400
29863503 rhinzler A Aug. 29, 2017, 10:39 a.m. OK GNU C++11 TESTS 42 15 0 1400
29606900 ahmed_elsayed A Aug. 19, 2017, 7:15 p.m. OK GNU C++11 TESTS 42 15 0 1400
27840539 Amit_Pandey A June 17, 2017, 7:42 a.m. OK GNU C++11 TESTS 42 15 0 1400
27760030 keerthichandra A June 13, 2017, 5:19 p.m. OK GNU C++11 TESTS 42 15 0 1400
27691214 deepak12yadav A June 9, 2017, 2:36 p.m. OK GNU C++11 TESTS 42 15 0 1400
40649808 hu_ssein A July 22, 2018, 7:50 p.m. OK GNU C++11 TESTS 42 15 0 1400
31707655 Bahonti A Oct. 25, 2017, 11:52 a.m. OK GNU C++14 TESTS 42 15 0 1400
57135329 4markumar A July 16, 2019, 8:40 a.m. OK GNU C++14 TESTS 42 15 0 1400
41449925 SvetlanaBovkun A Aug. 11, 2018, 3:08 a.m. OK GNU C++14 TESTS 42 15 0 1400
39514342 rrrohan A June 22, 2018, 11:08 a.m. OK GNU C++14 TESTS 42 15 0 1400
32229911 imntErik A Nov. 11, 2017, 8:08 p.m. OK GNU C++14 TESTS 42 15 0 1400
32229707 moody124 A Nov. 11, 2017, 7:58 p.m. OK GNU C++14 TESTS 42 15 0 1400
31960438 natha A Nov. 1, 2017, 6:45 p.m. OK GNU C++14 TESTS 42 15 0 1400
31879115 redcpp A Oct. 30, 2017, 12:32 a.m. OK GNU C++14 TESTS 42 15 0 1400
31146603 mochow A Oct. 8, 2017, 2:20 p.m. OK GNU C++14 TESTS 42 15 0 1400
31038614 cryptomanic A Oct. 5, 2017, 3:13 p.m. OK GNU C++14 TESTS 42 15 0 1400
39046512 jimmy18 A June 8, 2018, 12:51 p.m. OK GNU C++17 TESTS 42 15 0 1400
39350699 joker70 A June 18, 2018, 8:18 a.m. OK GNU C++17 TESTS 42 15 0 1400
54916918 adarsh150 A June 1, 2019, 2:21 p.m. OK GNU C++17 TESTS 42 15 0 1400
59586643 pro_30 A Aug. 27, 2019, 6:17 p.m. OK GNU C++17 TESTS 42 15 0 1400
62541230 earthshakira A Oct. 14, 2019, 3:33 a.m. OK GNU C++17 TESTS 42 15 0 1400
68397319 _kekus A Jan. 8, 2020, 11:39 a.m. OK GNU C++17 TESTS 42 15 0 1400
69098590 Mohd. A Jan. 19, 2020, 1:04 p.m. OK GNU C++17 TESTS 42 15 102400 1400
68823304 vin_aaay A Jan. 14, 2020, 6:11 p.m. OK GNU C++17 TESTS 42 15 102400 1400
65578459 omar208 A Nov. 23, 2019, 10:13 a.m. OK GNU C++17 TESTS 42 15 102400 1400
64439863 imOmi_KingOfPalindrome A Nov. 7, 2019, 3:39 a.m. OK GNU C++17 TESTS 42 15 102400 1400
8182139 leux A Oct. 12, 2014, 10:12 a.m. OK Go TESTS 40 30 0 1400
8071259 arnoldjulians A Oct. 3, 2014, 5:36 p.m. OK Go TESTS 40 60 102400 1400
2099900 DimsFromDergachy A Sept. 6, 2012, 12:03 p.m. OK Haskell TESTS 40 30 1638400 1400
800160 bjin A Oct. 27, 2011, 3:12 p.m. OK Haskell TESTS 40 30 2048000 1400
974023 mkut A Dec. 24, 2011, 9:42 a.m. OK Haskell TESTS 40 30 2150400 1400
17694346 ramesh.baskaran A May 3, 2016, 2:33 a.m. OK Haskell TESTS 42 30 44953600 1400
33800896 sighingnow A Dec. 30, 2017, 4:56 a.m. OK Haskell TESTS 42 31 53248000 1400
808326 xenophobia A Oct. 27, 2011, 5:59 p.m. OK Haskell TESTS 40 50 2048000 1400
952315 EmK A Dec. 12, 2011, 3:51 a.m. OK Haskell TESTS 40 50 2048000 1400
68211863 YahiaMostafa A Jan. 4, 2020, 7:47 p.m. OK Java 11 TESTS 42 202 0 1400
3608749 sfmunera A April 23, 2013, 2:47 a.m. OK Java 6 TESTS 40 78 0 1400
1175367 Lost_Soul A Feb. 13, 2012, 10:20 a.m. OK Java 6 TESTS 40 80 43110400 1400
3608719 DiegoAE A April 23, 2013, 2:41 a.m. OK Java 6 TESTS 40 93 0 1400
3608635 santjuan A April 23, 2013, 1:46 a.m. OK Java 6 TESTS 40 93 0 1400
4039587 mkirsche A July 8, 2013, 3:51 p.m. OK Java 6 TESTS 40 93 2252800 1400
822535 permin A Oct. 27, 2011, 3:20 p.m. OK Java 6 TESTS 40 110 35225600 1400
812899 Berestinsky A Oct. 27, 2011, 3:43 p.m. OK Java 6 TESTS 40 110 35225600 1400
812896 Berestinsky A Oct. 27, 2011, 3:42 p.m. OK Java 6 TESTS 40 110 35225600 1400
812837 sjbr A Oct. 28, 2011, 5:17 p.m. OK Java 6 TESTS 40 110 35225600 1400
813386 tux1986 A Oct. 28, 2011, 9:32 p.m. OK Java 6 TESTS 40 110 35328000 1400
10404086 kimox2 A March 22, 2015, 7:22 p.m. OK Java 7 TESTS 42 78 0 1400
4125722 miguelmaurizio A July 21, 2013, 3:14 a.m. OK Java 7 TESTS 40 125 204800 1400
18118183 aladdin3 A May 27, 2016, 12:36 p.m. OK Java 7 TESTS 42 139 39321600 1400
17205386 MazzForces A April 7, 2016, 2:41 p.m. OK Java 7 TESTS 42 140 39526400 1400
7332455 upsolving A Aug. 2, 2014, 6:57 p.m. OK Java 7 TESTS 40 154 0 1400
4529539 hama-du A Sept. 21, 2013, 10:24 a.m. OK Java 7 TESTS 40 156 0 1400
5390772 Pshenichnoe A Dec. 8, 2013, 1:53 p.m. OK Java 7 TESTS 40 156 0 1400
2044282 nightwolf212 A Aug. 23, 2012, 11:01 a.m. OK Java 7 TESTS 40 160 45056000 1400
5267966 0p9o8i A Nov. 27, 2013, 4:36 a.m. OK Java 7 TESTS 40 186 102400 1400
60399239 sharmasanchit1310 A Sept. 11, 2019, 4:03 p.m. OK Java 8 TESTS 42 108 0 1400
27837716 luisligunas A June 17, 2017, 4:39 a.m. OK Java 8 TESTS 42 108 0 1400
60639650 ajkdrag A Sept. 15, 2019, 3:03 p.m. OK Java 8 TESTS 42 109 0 1400
46621709 mandark27 A Dec. 4, 2018, 6:28 p.m. OK Java 8 TESTS 42 109 0 1400
44760923 vovanstrr A Oct. 24, 2018, 7:06 a.m. OK Java 8 TESTS 42 109 0 1400
31276726 sjain281297 A Oct. 13, 2017, 2:09 p.m. OK Java 8 TESTS 42 109 0 1400
27443014 Amr_Ayman A May 30, 2017, 8:17 a.m. OK Java 8 TESTS 42 109 0 1400
11781403 turmoil A June 27, 2015, 7:41 a.m. OK Java 8 TESTS 42 109 0 1400
9637639 fnch A Jan. 31, 2015, 5:59 a.m. OK Java 8 TESTS 42 109 0 1400
23131928 OmarRadwan A Dec. 19, 2016, 7:16 a.m. OK Java 8 TESTS 42 109 20275200 1400
837089 NickSerg A Nov. 5, 2011, 8:15 p.m. OK Mono C# TESTS 40 90 10035200 1400
801434 AlphaStream A Oct. 27, 2011, 3:24 p.m. OK Mono C# TESTS 40 90 10035200 1400
800421 tanzaku A Oct. 27, 2011, 3:14 p.m. OK Mono C# TESTS 40 90 10035200 1400
820782 realnumber A Oct. 31, 2011, 2:51 a.m. OK Mono C# TESTS 40 90 10137600 1400
13318199 og.kostya A Sept. 30, 2015, 4:06 p.m. OK MS C# TESTS 42 46 307200 1400
4043003 Dragonborn A July 9, 2013, 3:12 p.m. OK MS C# TESTS 40 78 3584000 1400
2089050 ssslpk A Sept. 2, 2012, 2:22 a.m. OK MS C++ TESTS 40 10 8704000 1400
11963113 SADJUK A July 7, 2015, 6:06 p.m. OK MS C++ TESTS 42 15 0 1400
11369545 saba2000 A May 31, 2015, 5:10 p.m. OK MS C++ TESTS 42 15 0 1400
18756501 Salim_Shebli A June 27, 2016, 6:15 p.m. OK MS C++ TESTS 42 15 0 1400
23049154 DiorRustamov A Dec. 17, 2016, 2:05 p.m. OK MS C++ TESTS 42 15 0 1400
19441458 Deathly_Hallows A July 27, 2016, 12:14 p.m. OK MS C++ TESTS 42 15 102400 1400
12832341 SAFWAN.K A Sept. 3, 2015, 5:41 p.m. OK MS C++ TESTS 42 15 102400 1400
12488568 SmileDog A Aug. 13, 2015, 7:53 a.m. OK MS C++ TESTS 42 15 102400 1400
12304608 vjudge5 A Aug. 1, 2015, 1:52 p.m. OK MS C++ TESTS 42 15 102400 1400
12283346 BRAD_BIT A July 30, 2015, 9:05 p.m. OK MS C++ TESTS 42 15 102400 1400
4131084 mayakin A July 21, 2013, 9:04 p.m. OK PHP TESTS 40 31 307200 1400
21659381 Yash_ A Oct. 22, 2016, 6:57 a.m. OK PyPy 2 TESTS 42 93 614400 1400
56252300 Claustrophobic_Penguin A June 29, 2019, 4:15 a.m. OK PyPy 2 TESTS 42 171 1536000 1400
12897424 minimario A Sept. 8, 2015, 12:41 p.m. OK PyPy 3 TESTS 42 124 307200 1400
62514042 _noobie_ A Oct. 13, 2019, 1:57 p.m. OK PyPy 3 TESTS 42 140 1331200 1400
62091216 ZzaZi A Oct. 8, 2019, 5:46 a.m. OK PyPy 3 TESTS 42 140 1843200 1400
38673524 Mahdi_Shokoufi A May 27, 2018, 5:03 p.m. OK PyPy 3 TESTS 42 155 1024000 1400
67327734 ashok123 A Dec. 21, 2019, 10:25 a.m. OK PyPy 3 TESTS 42 155 1331200 1400
66142174 vjudge1 A Dec. 1, 2019, 2:55 p.m. OK PyPy 3 TESTS 42 155 1945600 1400
64663681 vjudge5 A Nov. 10, 2019, 11:23 p.m. OK PyPy 3 TESTS 42 155 1945600 1400
31278955 nonis A Oct. 13, 2017, 3:43 p.m. OK PyPy 3 TESTS 42 186 819200 1400
68029059 ultimatron A Jan. 1, 2020, 8:02 a.m. OK PyPy 3 TESTS 42 217 5324800 1400
69065194 polingram A Jan. 18, 2020, 6:17 p.m. OK PyPy 3 TESTS 42 1044 37580800 1400
3699915 Gotzillaz A May 10, 2013, 4:25 p.m. OK Python 2 TESTS 40 46 102400 1400
1352893 neex.emil A March 12, 2012, 5:36 p.m. OK Python 2 TESTS 40 60 2867200 1400
1122424 zhyu A Jan. 28, 2012, 8:35 a.m. OK Python 2 TESTS 40 60 2867200 1400
843409 ichirin.2501 A Nov. 9, 2011, 3:38 p.m. OK Python 2 TESTS 40 60 2867200 1400
820323 pablo.aguilar A Oct. 30, 2011, 9:31 p.m. OK Python 2 TESTS 40 60 2867200 1400
812708 chaemon A Oct. 28, 2011, 4:43 p.m. OK Python 2 TESTS 40 60 2867200 1400
812701 chaemon A Oct. 28, 2011, 4:41 p.m. OK Python 2 TESTS 40 60 2867200 1400
812585 rudradevbasak A Oct. 28, 2011, 4:02 p.m. OK Python 2 TESTS 40 60 2867200 1400
808547 blinovsv A Oct. 27, 2011, 6:08 p.m. OK Python 2 TESTS 40 60 2867200 1400
799949 Gassa A Oct. 27, 2011, 3:10 p.m. OK Python 2 TESTS 40 60 2867200 1400
21198062 orailly A Oct. 4, 2016, 11:26 p.m. OK Python 3 TESTS 42 62 0 1400
12783943 PPTGamer A Aug. 31, 2015, 4:30 a.m. OK Python 3 TESTS 42 62 0 1400
29834292 Sheemon7 A Aug. 27, 2017, 8:08 p.m. OK Python 3 TESTS 42 62 307200 1400
14918103 ComradeMike A Dec. 21, 2015, 8:02 p.m. OK Python 3 TESTS 42 62 307200 1400
32847819 balaji97 A Dec. 2, 2017, 5:21 a.m. OK Python 3 TESTS 42 62 5632000 1400
32870546 drisskhalil15 A Dec. 2, 2017, 3:12 p.m. OK Python 3 TESTS 42 77 5529600 1400
3857776 ItsLastDay A June 11, 2013, 2:23 p.m. OK Python 3 TESTS 40 78 204800 1400
19679399 Amores A Aug. 7, 2016, 3:28 a.m. OK Python 3 TESTS 42 78 4915200 1400
38882940 fcpytago A June 2, 2018, 10:17 a.m. OK Python 3 TESTS 42 93 7065600 1400
66072275 vjudge2 A Nov. 30, 2019, 8:12 p.m. OK Python 3 TESTS 42 109 0 1400
842264 Belbesy A Nov. 8, 2011, 9:06 p.m. OK Ruby TESTS 40 90 5529600 1400
7440704 plain A Aug. 13, 2014, 8:55 a.m. OK Ruby TESTS 40 154 0 1400

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