Educational Codeforces Round 50 (Rated for Div. 2)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
1036 Educational Codeforces Round 50 (Rated for Div. 2) FINISHED False 7200 195492299 Sept. 7, 2018, 2:35 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 9791 ) C Classy Numbers PROGRAMMING combinatorics dp 1800

B"Let's call some positive integer classy if its decimal representation contains no more than 3 non-zero digits. For example, numbers 4 , 200000 , 10203 are classy and numbers 4231 , 102306 , 7277420000 are not. You are given a segment [L; R] . Count the number of classy integers x such that L <= x <= R . Each testcase contains several segments, for each of them you are required to solve the problem separately. The first line contains a single integer T ( 1 <= T <= 10^4 ) -- the number of segments in a testcase. Each of the next T lines contains two integers L_i and R_i ( 1 <= L_i <= R_i <= 10^{18} ). Print T lines -- the i -th line should contain the number of classy integers on a segment [L_i; R_i] . "...

Tutorials

61727

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
42673167 ACMWGR C Sept. 8, 2018, 12:10 p.m. OK Clang++17 Diagnostics TESTS 7 873 307200 1800
42860598 Konfetka C Sept. 14, 2018, 12:38 p.m. OK Clang++17 Diagnostics TESTS 7 1653 11571200 1800
51373220 rr_ C March 16, 2019, 12:58 p.m. OK D TESTS 7 31 0 1800
55785014 cpy C June 19, 2019, 4:21 p.m. OK D TESTS 7 233 0 1800
43747398 ia7ck C Oct. 3, 2018, 10:18 p.m. OK D TESTS 7 468 102400 1800
43777081 ia7ck C Oct. 4, 2018, 9:01 a.m. OK D TESTS 7 561 307200 1800
42660340 ruban C Sept. 8, 2018, 3:36 a.m. OK Delphi TESTS 7 327 108441600 1800
42637065 ruban C Sept. 7, 2018, 3:57 p.m. OK Delphi TESTS 7 358 108236800 1800
43066965 vjudge1 C Sept. 19, 2018, 6:19 a.m. OK FPC TESTS 7 61 0 1800
45192939 chaorenhaha C Nov. 2, 2018, 4:28 a.m. OK FPC TESTS 7 62 7987200 1800
43070314 vjudge4 C Sept. 19, 2018, 8:47 a.m. OK FPC TESTS 7 77 0 1800
43070171 vjudge2 C Sept. 19, 2018, 8:41 a.m. OK FPC TESTS 7 77 0 1800
47450975 linhlrx C Dec. 24, 2018, 9:38 a.m. OK FPC TESTS 7 124 0 1800
45050397 luogu_bot1 C Oct. 29, 2018, 10:22 a.m. OK FPC TESTS 7 156 0 1800
49462200 PhuongPeu C Feb. 4, 2019, 1:32 p.m. OK FPC TESTS 7 156 102400 1800
45237019 hry C Nov. 3, 2018, 9:47 a.m. OK FPC TESTS 7 452 8089600 1800
45416843 abc48458495 C Nov. 7, 2018, 2:45 p.m. OK FPC TESTS 7 468 4915200 1800
50210435 rainboy C Feb. 19, 2019, 10:45 p.m. OK GNU C11 TESTS 7 46 0 1800
64871550 SH221B C Nov. 14, 2019, 8:20 a.m. OK GNU C11 TESTS 7 46 0 1800
68237786 sgk C Jan. 5, 2020, 11:39 a.m. OK GNU C11 TESTS 7 61 0 1800
64785605 Alapan C Nov. 13, 2019, 9:01 a.m. OK GNU C11 TESTS 7 61 0 1800
64684130 Sahib.gsc C Nov. 11, 2019, 11:11 a.m. OK GNU C11 TESTS 7 62 0 1800
64896621 Prasanth_Venkat C Nov. 14, 2019, 4:53 p.m. OK GNU C11 TESTS 7 62 0 1800
64884771 Alapan C Nov. 14, 2019, 12:45 p.m. OK GNU C11 TESTS 7 62 0 1800
64786716 Alapan C Nov. 13, 2019, 9:24 a.m. OK GNU C11 TESTS 7 62 0 1800
64690275 XLeVi_AcKeRmAnX C Nov. 11, 2019, 12:57 p.m. OK GNU C11 TESTS 7 62 0 1800
64684274 Chief_Blackhood C Nov. 11, 2019, 11:13 a.m. OK GNU C11 TESTS 7 62 0 1800
42724714 luogu_bot4 C Sept. 10, 2018, 6:34 a.m. OK GNU C++11 TESTS 7 15 0 1800
42762039 LittleFall C Sept. 11, 2018, 11:17 a.m. OK GNU C++11 TESTS 7 15 2355200 1800
42657806 616156 C Sept. 8, 2018, 12:48 a.m. OK GNU C++11 TESTS 7 30 0 1800
42664580 tt1724369779 C Sept. 8, 2018, 6:57 a.m. OK GNU C++11 TESTS 7 30 0 1800
42694543 luogu_bot2 C Sept. 9, 2018, 5:53 a.m. OK GNU C++11 TESTS 7 30 0 1800
42694546 Contna C Sept. 9, 2018, 5:54 a.m. OK GNU C++11 TESTS 7 30 0 1800
54803561 codemaster12 C May 29, 2019, 1:01 p.m. OK GNU C++11 TESTS 7 30 0 1800
48702929 lsklsklsk C Jan. 22, 2019, 4:04 a.m. OK GNU C++11 TESTS 7 30 0 1800
52299943 Chjwisj C April 4, 2019, 8:27 a.m. OK GNU C++11 TESTS 7 30 0 1800
42654185 ggoh C Sept. 7, 2018, 8:34 p.m. OK GNU C++11 TESTS 7 30 0 1800
52300703 huyufeifei C April 4, 2019, 8:58 a.m. OK GNU C++14 TESTS 7 15 0 1800
44572363 75KG C Oct. 20, 2018, 5:28 a.m. OK GNU C++14 TESTS 7 30 0 1800
42646706 ShadowLight C Sept. 7, 2018, 4:49 p.m. OK GNU C++14 TESTS 7 30 0 1800
42637124 kukul C Sept. 7, 2018, 3:58 p.m. OK GNU C++14 TESTS 7 30 0 1800
58709265 vjudge2 C Aug. 13, 2019, 11:37 a.m. OK GNU C++14 TESTS 7 31 0 1800
58693534 vjudge5 C Aug. 13, 2019, 4:50 a.m. OK GNU C++14 TESTS 7 31 0 1800
64901261 naman04 C Nov. 14, 2019, 7:01 p.m. OK GNU C++14 TESTS 7 31 0 1800
64688265 Triansh C Nov. 11, 2019, 12:23 p.m. OK GNU C++14 TESTS 7 31 0 1800
54791575 vjudge3 C May 29, 2019, 7:24 a.m. OK GNU C++14 TESTS 7 31 0 1800
56031336 mlyean C June 25, 2019, 9:42 a.m. OK GNU C++14 TESTS 7 31 0 1800
58664042 vjudge2 C Aug. 12, 2019, 11:59 a.m. OK GNU C++17 TESTS 7 30 0 1800
42635535 icebound_ C Sept. 7, 2018, 3:50 p.m. OK GNU C++17 TESTS 7 30 0 1800
58674410 vjudge5 C Aug. 12, 2019, 3:51 p.m. OK GNU C++17 TESTS 7 30 0 1800
57307996 LiM_256 C July 19, 2019, 5:08 a.m. OK GNU C++17 TESTS 7 31 0 1800
58605479 vjudge3 C Aug. 11, 2019, 1:47 p.m. OK GNU C++17 TESTS 7 31 0 1800
58669068 vjudge1 C Aug. 12, 2019, 1:40 p.m. OK GNU C++17 TESTS 7 31 0 1800
60417255 stArliGht C Sept. 12, 2019, 3:16 a.m. OK GNU C++17 TESTS 7 31 0 1800
61323269 vjudge4 C Sept. 26, 2019, 1:08 p.m. OK GNU C++17 TESTS 7 31 0 1800
63387621 KhanhHoa_NNTan C Oct. 25, 2019, 2:14 p.m. OK GNU C++17 TESTS 7 31 0 1800
65732962 zzpcd C Nov. 26, 2019, 6:14 a.m. OK GNU C++17 TESTS 7 31 0 1800
42739804 cacophonix C Sept. 10, 2018, 3:37 p.m. OK Go TESTS 7 155 1331200 1800
68958547 YahiaMostafa C Jan. 16, 2020, 9:57 p.m. OK Java 11 TESTS 7 405 0 1800
44958899 KulikAlex C Oct. 27, 2018, 3:24 p.m. OK Java 8 TESTS 7 124 0 1800
42694131 SrapZark C Sept. 9, 2018, 5:27 a.m. OK Java 8 TESTS 7 124 0 1800
49031975 AQT C Jan. 26, 2019, 11:21 p.m. OK Java 8 TESTS 7 139 0 1800
50210098 Dukkha C Feb. 19, 2019, 10:23 p.m. OK Java 8 TESTS 7 140 0 1800
49352074 boltUsain C Feb. 2, 2019, 9:04 a.m. OK Java 8 TESTS 7 140 0 1800
42677592 AQT C Sept. 8, 2018, 2:33 p.m. OK Java 8 TESTS 7 140 0 1800
42641645 flyman3046 C Sept. 7, 2018, 4:18 p.m. OK Java 8 TESTS 7 155 0 1800
42708350 kusomushi C Sept. 9, 2018, 2:34 p.m. OK Java 8 TESTS 7 155 0 1800
42655681 Suzukaze C Sept. 7, 2018, 9:53 p.m. OK Java 8 TESTS 7 155 0 1800
42640853 Phicar C Sept. 7, 2018, 4:15 p.m. OK Java 8 TESTS 7 155 0 1800
49034578 wleung_bvg C Jan. 27, 2019, 2:08 a.m. OK Kotlin TESTS 7 686 157491200 1800
42655923 wleung_bvg C Sept. 7, 2018, 10:11 p.m. OK Kotlin TESTS 7 795 157491200 1800
55931068 og.kostya C June 22, 2019, 11:30 a.m. OK Mono C# TESTS 7 77 17408000 1800
42679262 leign C Sept. 8, 2018, 3:24 p.m. OK Mono C# TESTS 7 93 3072000 1800
42773048 omikad C Sept. 11, 2018, 4:27 p.m. OK Mono C# TESTS 7 124 6553600 1800
43478257 witchu C Sept. 27, 2018, 5:02 a.m. OK Mono C# TESTS 7 140 20275200 1800
43164639 eki C Sept. 21, 2018, 4:07 a.m. OK Mono C# TESTS 7 155 3072000 1800
42643134 kuuso C Sept. 7, 2018, 4:25 p.m. OK Mono C# TESTS 7 155 3481600 1800
42667314 GustavK C Sept. 8, 2018, 8:47 a.m. OK Mono C# TESTS 7 218 20275200 1800
42848055 vjudge3 C Sept. 14, 2018, 2:32 a.m. OK MS C++ TESTS 7 30 0 1800
44760214 vjudge4 C Oct. 24, 2018, 6:38 a.m. OK MS C++ TESTS 7 30 0 1800
42883751 vjudge5 C Sept. 15, 2018, 8:34 a.m. OK MS C++ TESTS 7 31 0 1800
43541844 vjudge2 C Sept. 28, 2018, 5:29 p.m. OK MS C++ TESTS 7 31 0 1800
43575441 scorpiowf C Sept. 29, 2018, 2:41 p.m. OK MS C++ TESTS 7 31 0 1800
48706196 just. C Jan. 22, 2019, 6 a.m. OK MS C++ TESTS 7 31 0 1800
58573060 vjudge3 C Aug. 11, 2019, 11:08 a.m. OK MS C++ TESTS 7 31 0 1800
58691166 vjudge4 C Aug. 13, 2019, 3:15 a.m. OK MS C++ TESTS 7 31 0 1800
58691201 vjudge2 C Aug. 13, 2019, 3:17 a.m. OK MS C++ TESTS 7 31 0 1800
42757349 vjudge5 C Sept. 11, 2018, 8:13 a.m. OK MS C++ TESTS 7 31 307200 1800
51459341 petko_mitkov C March 18, 2019, 6:42 p.m. OK MS C++ 2017 TESTS 7 62 0 1800
51827838 lechinhin C March 25, 2019, 2:45 p.m. OK MS C++ 2017 TESTS 7 108 9830400 1800
52951905 hwangganzi C April 18, 2019, 12:15 p.m. OK MS C++ 2017 TESTS 7 108 10137600 1800
52618646 _nicktz1408_ C April 11, 2019, 7:57 p.m. OK MS C++ 2017 TESTS 7 202 0 1800
43574397 I_love_tigersugar C Sept. 29, 2018, 2:14 p.m. OK Ocaml TESTS 7 592 512000 1800
53673260 noob77777 C May 2, 2019, 2:21 p.m. OK PyPy 2 TESTS 7 249 6758400 1800
43293603 supachai_pay C Sept. 23, 2018, 12:09 p.m. OK PyPy 2 TESTS 7 405 2867200 1800
60453641 ashok123 C Sept. 12, 2019, 4:58 p.m. OK PyPy 2 TESTS 7 873 44646400 1800
42852119 tanghao C Sept. 14, 2018, 6:33 a.m. OK PyPy 2 TESTS 7 1013 6041600 1800
42639901 zacker-22 C Sept. 7, 2018, 4:10 p.m. OK PyPy 2 TESTS 7 1107 9420800 1800
42691488 pavankatta C Sept. 9, 2018, 2 a.m. OK PyPy 2 TESTS 7 1309 9728000 1800
43703469 DedMartyn C Oct. 2, 2018, 7:57 p.m. OK PyPy 3 TESTS 7 452 8294400 1800
43434914 throwaway_account C Sept. 26, 2018, 4:45 a.m. OK PyPy 3 TESTS 7 592 8089600 1800
42884124 rickya C Sept. 15, 2018, 8:46 a.m. OK PyPy 3 TESTS 7 733 7884800 1800
42673928 wadissimo C Sept. 8, 2018, 12:34 p.m. OK PyPy 3 TESTS 7 779 8294400 1800
42746614 titia C Sept. 10, 2018, 7:49 p.m. OK PyPy 3 TESTS 7 810 8806400 1800
57485504 artifexbm C July 22, 2019, 5:06 a.m. OK PyPy 3 TESTS 7 1169 11264000 1800
51920488 homoeconomicus C March 28, 2019, 3:48 a.m. OK PyPy 3 TESTS 7 1185 44441600 1800
42711116 Stephan C Sept. 9, 2018, 4:12 p.m. OK PyPy 3 TESTS 7 1481 45670400 1800
59406088 Mr.Inconsistent C Aug. 24, 2019, 1:58 p.m. OK PyPy 3 TESTS 7 1731 90419200 1800
42644403 lelkok220 C Sept. 7, 2018, 4:30 p.m. OK PyPy 3 TESTS 7 2215 8806400 1800
42641691 govind_lahoti C Sept. 7, 2018, 4:18 p.m. OK Python 2 TESTS 7 421 204800 1800
42665243 Djok216 C Sept. 8, 2018, 7:21 a.m. OK Python 2 TESTS 7 842 20480000 1800
42641106 fake2390_ C Sept. 7, 2018, 4:16 p.m. OK Python 2 TESTS 7 857 204800 1800
42683652 sallyyao2001 C Sept. 8, 2018, 5:55 p.m. OK Python 2 TESTS 7 951 204800 1800
42656329 wangkan2001 C Sept. 7, 2018, 10:43 p.m. OK Python 2 TESTS 7 967 204800 1800
46293950 EoinDavey C Nov. 27, 2018, 10:54 p.m. OK Python 2 TESTS 7 1465 18739200 1800
42639458 LadyPython C Sept. 7, 2018, 4:08 p.m. OK Python 3 TESTS 7 390 0 1800
42635899 ZhenjianYang C Sept. 7, 2018, 3:52 p.m. OK Python 3 TESTS 7 467 0 1800
42783864 elliott_y C Sept. 12, 2018, 1:36 a.m. OK Python 3 TESTS 7 560 6656000 1800
42884208 rickya C Sept. 15, 2018, 8:49 a.m. OK Python 3 TESTS 7 592 0 1800
43234431 kgcurry59 C Sept. 22, 2018, 7:31 a.m. OK Python 3 TESTS 7 623 0 1800
42883978 rickya C Sept. 15, 2018, 8:42 a.m. OK Python 3 TESTS 7 685 0 1800
48325714 Tauzn C Jan. 13, 2019, 11:43 a.m. OK Python 3 TESTS 7 811 0 1800
42660633 Q-learning C Sept. 8, 2018, 3:53 a.m. OK Python 3 TESTS 7 811 0 1800
42746626 titia C Sept. 10, 2018, 7:50 p.m. OK Python 3 TESTS 7 857 1638400 1800
42649469 zyf940104357 C Sept. 7, 2018, 5:42 p.m. OK Python 3 TESTS 7 904 0 1800
43373818 vain0 C Sept. 24, 2018, 3:42 p.m. OK Rust TESTS 7 108 12595200 1800
43373757 vain0 C Sept. 24, 2018, 3:41 p.m. OK Rust TESTS 7 108 12595200 1800
43376414 vain0 C Sept. 24, 2018, 4:43 p.m. OK Rust TESTS 7 124 12595200 1800
42804074 vain0 C Sept. 12, 2018, 4:04 p.m. OK Rust TESTS 7 124 12595200 1800
42770693 vain0 C Sept. 11, 2018, 3:17 p.m. OK Rust TESTS 7 171 0 1800
47364551 yakamoto C Dec. 22, 2018, 10:45 a.m. OK Scala TESTS 7 670 39014400 1800
42681534 yakamoto C Sept. 8, 2018, 4:42 p.m. OK Scala TESTS 7 779 0 1800
42682784 yakamoto C Sept. 8, 2018, 5:24 p.m. OK Scala TESTS 7 920 0 1800
42682704 yakamoto C Sept. 8, 2018, 5:21 p.m. OK Scala TESTS 7 951 0 1800
66657380 gazaan C Dec. 12, 2019, 1:01 a.m. OK Scala TESTS 7 1465 0 1800

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