Educational Codeforces Round 112 (Rated for Div. 2)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
1555 Educational Codeforces Round 112 (Rated for Div. 2) FINISHED False 7200 109524263 July 30, 2021, 2:35 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 12784 ) D Say No to Palindromes PROGRAMMING brute force dp strings 1600

B"Let's call the string beautiful if it does not contain a substring of length at least 2 , which is a palindrome. Recall that a palindrome is a string that reads the same way from the first character to the last and from the last character to the first. For example, the strings a, bab, acca, bcabcbacb are palindromes, but the strings ab, abbbaa, cccb are not. Let's define cost of a string as the minimum number of operations so that the string becomes beautiful, if in one operation it is allowed to change any character of the string to one of the first 3 letters of the Latin alphabet (in lowercase). You are given a string s of length n , each character of the string is one of the first 3 letters of the Latin alphabet (in lowercase). You have to answer m queries -- calculate the cost of the substring of the string s from l_i -th to r_i -th position, inclusive. The first line contains two integers n and m ( 1 <= n, m <= 2 cdot 10^5 ) -- the length of the string s and the number of queries. The second line contains the string s , it consists of n characters, each character one of the first 3 Latin letters. The following m lines contain two integers l_i and r_i ( 1 <= l_i <= r_i <= n ) -- parameters of the i -th query. For each query, print a single integer -- the cost of the substring of the string s from l_i -th to r_i -th position, inclusive. Consider the queries of the example test. "...

Tutorials

93389

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
124364467 gxlois D July 30, 2021, 8:18 p.m. OK D TESTS 15 249 18227200 1600
124365312 eastnman D July 30, 2021, 8:30 p.m. OK Delphi TESTS 15 234 17510400 1600
124341591 Joe2357 D July 30, 2021, 4:33 p.m. OK GNU C11 TESTS 15 826 8704000 1600
124377629 dingdingsb D July 31, 2021, 2:14 a.m. OK GNU C++11 TESTS 15 62 9932800 1600
124377354 uuku D July 31, 2021, 2:08 a.m. OK GNU C++11 TESTS 15 62 15564800 1600
124377975 zqyyy D July 31, 2021, 2:21 a.m. OK GNU C++11 TESTS 15 78 9728000 1600
124351210 asdf1229 D July 30, 2021, 5:34 p.m. OK GNU C++11 TESTS 15 78 12083200 1600
124345925 ORzyzRO D July 30, 2021, 4:51 p.m. OK GNU C++11 TESTS 15 78 15360000 1600
124375506 L.I. D July 31, 2021, 1:24 a.m. OK GNU C++11 TESTS 15 93 11161600 1600
124380235 Eason_AC D July 31, 2021, 3:06 a.m. OK GNU C++11 TESTS 15 93 11366400 1600
124385937 mao_zx D July 31, 2021, 4:46 a.m. OK GNU C++11 TESTS 15 93 12083200 1600
124344171 yyyz04 D July 30, 2021, 4:41 p.m. OK GNU C++11 TESTS 15 93 28979200 1600
124375665 L.I. D July 31, 2021, 1:28 a.m. OK GNU C++11 TESTS 15 108 10956800 1600
124370490 quadraticreciprocity D July 30, 2021, 10:22 p.m. OK GNU C++14 TESTS 15 155 8704000 1600
124363177 sami7786 D July 30, 2021, 8 p.m. OK GNU C++14 TESTS 15 155 9113600 1600
124338993 lazywitt D July 30, 2021, 4:27 p.m. OK GNU C++14 TESTS 15 155 9216000 1600
124378130 G_liver D July 31, 2021, 2:25 a.m. OK GNU C++14 TESTS 15 155 9523200 1600
124373274 chuiniu D July 31, 2021, 12:07 a.m. OK GNU C++14 TESTS 15 156 6348800 1600
124344847 Praveen1208 D July 30, 2021, 4:44 p.m. OK GNU C++14 TESTS 15 156 11776000 1600
124340018 ahmedalaa756.aa D July 30, 2021, 4:29 p.m. OK GNU C++14 TESTS 15 170 9113600 1600
124370788 shaky_adino D July 30, 2021, 10:32 p.m. OK GNU C++14 TESTS 15 170 12697600 1600
124385585 Atland D July 31, 2021, 4:41 a.m. OK GNU C++14 TESTS 15 170 19148800 1600
124341259 deadshooter_v2 D July 30, 2021, 4:32 p.m. OK GNU C++14 TESTS 15 171 9011200 1600
124359284 Patrusheva_Anna D July 30, 2021, 7:10 p.m. OK GNU C++17 TESTS 15 139 30310400 1600
124353361 spy20051623 D July 30, 2021, 5:58 p.m. OK GNU C++17 TESTS 15 140 8704000 1600
124375595 Cx330_L D July 31, 2021, 1:27 a.m. OK GNU C++17 TESTS 15 140 8806400 1600
124357449 soy4742 D July 30, 2021, 6:45 p.m. OK GNU C++17 TESTS 15 140 8806400 1600
124347612 Asphyxia_ D July 30, 2021, 5:02 p.m. OK GNU C++17 TESTS 15 140 11980800 1600
124349491 Mastre D July 30, 2021, 5:17 p.m. OK GNU C++17 TESTS 15 155 7782400 1600
124385829 codycjy D July 31, 2021, 4:44 a.m. OK GNU C++17 TESTS 15 155 8704000 1600
124379766 Muphy D July 31, 2021, 2:56 a.m. OK GNU C++17 TESTS 15 155 8704000 1600
124346523 Bull_Demon D July 30, 2021, 4:54 p.m. OK GNU C++17 TESTS 15 155 8704000 1600
124380731 liaoshixing D July 31, 2021, 3:14 a.m. OK GNU C++17 TESTS 15 155 8806400 1600
124339124 Saarthak_10 D July 30, 2021, 4:28 p.m. OK GNU C++17 (64) TESTS 15 109 8294400 1600
124368898 Timer_011 D July 30, 2021, 9:36 p.m. OK GNU C++17 (64) TESTS 15 109 9625600 1600
124368388 hritik3878 D July 30, 2021, 9:25 p.m. OK GNU C++17 (64) TESTS 15 109 9625600 1600
124348989 TimeWarp101 D July 30, 2021, 5:13 p.m. OK GNU C++17 (64) TESTS 15 109 11673600 1600
124340075 TAoz1 D July 30, 2021, 4:30 p.m. OK GNU C++17 (64) TESTS 15 109 12288000 1600
124379369 DreamingLeaf D July 31, 2021, 2:49 a.m. OK GNU C++17 (64) TESTS 15 124 9625600 1600
124373890 DuyAnhTM D July 31, 2021, 12:29 a.m. OK GNU C++17 (64) TESTS 15 124 9625600 1600
124371962 narangkay D July 30, 2021, 11:15 p.m. OK GNU C++17 (64) TESTS 15 124 9625600 1600
124369106 Timer_011 D July 30, 2021, 9:42 p.m. OK GNU C++17 (64) TESTS 15 124 9625600 1600
124369069 Timer_011 D July 30, 2021, 9:41 p.m. OK GNU C++17 (64) TESTS 15 124 9625600 1600
124345030 BestEveryman D July 30, 2021, 4:45 p.m. OK Java 11 TESTS 15 343 44748800 1600
124361277 kareem3id D July 30, 2021, 7:35 p.m. OK Java 11 TESTS 15 358 29081600 1600
124340617 BiggEr. D July 30, 2021, 4:31 p.m. OK Java 11 TESTS 15 358 29900800 1600
124373109 Andwerp D July 31, 2021, 12:02 a.m. OK Java 11 TESTS 15 374 38195200 1600
124386447 yogii_123 D July 31, 2021, 4:54 a.m. OK Java 11 TESTS 15 389 30105600 1600
124368232 mrRobot D July 30, 2021, 9:22 p.m. OK Java 11 TESTS 15 390 38604800 1600
124374565 mphillotry D July 31, 2021, 12:55 a.m. OK Java 11 TESTS 15 421 41676800 1600
124345660 LiandrysAnguish D July 30, 2021, 4:49 p.m. OK Java 11 TESTS 15 436 44441600 1600
124366953 _Body D July 30, 2021, 8:57 p.m. OK Java 11 TESTS 15 451 43417600 1600
124340784 Adi_7861 D July 30, 2021, 4:31 p.m. OK Java 11 TESTS 15 468 29900800 1600
124356520 nuni. D July 30, 2021, 6:33 p.m. OK Java 8 TESTS 15 233 28569600 1600
124356493 nuni. D July 30, 2021, 6:33 p.m. OK Java 8 TESTS 15 233 28569600 1600
124356339 nuni. D July 30, 2021, 6:31 p.m. OK Java 8 TESTS 15 249 28467200 1600
124367475 kkkkush D July 30, 2021, 9:06 p.m. OK Java 8 TESTS 15 265 27750400 1600
124389541 priyam_anand D July 31, 2021, 5:39 a.m. OK Java 8 TESTS 15 280 27750400 1600
124343968 SlowLegendaryNoobMaster D July 30, 2021, 4:40 p.m. OK Java 8 TESTS 15 280 38400000 1600
124355773 TheKingInTheNorth D July 30, 2021, 6:24 p.m. OK Java 8 TESTS 15 327 25907200 1600
124356182 aditya_daredevil D July 30, 2021, 6:29 p.m. OK Java 8 TESTS 15 358 25804800 1600
124362356 BrayBray123 D July 30, 2021, 7:49 p.m. OK Java 8 TESTS 15 1435 20480000 1600
124356921 pras7946 D July 30, 2021, 6:38 p.m. OK Java 8 TESTS 15 1481 28057600 1600
124339469 Huth-0 D July 30, 2021, 4:28 p.m. OK Kotlin TESTS 15 1684 21913600 1600
124375976 zhangpangpang D July 31, 2021, 1:37 a.m. OK MS C++ 2017 TESTS 15 186 10956800 1600
124339024 icecomet D July 30, 2021, 4:27 p.m. OK MS C++ 2017 TESTS 15 187 44851200 1600
124380136 swz D July 31, 2021, 3:04 a.m. OK MS C++ 2017 TESTS 15 452 9011200 1600
124360614 adasanvin12345 D July 30, 2021, 7:27 p.m. OK MS C++ 2017 TESTS 15 1092 15462400 1600
124342558 people_plus_plus D July 30, 2021, 4:34 p.m. OK MS C++ 2017 TESTS 15 1138 24166400 1600
124339459 WoodMachine D July 30, 2021, 4:28 p.m. OK MS C++ 2017 TESTS 15 1590 20480000 1600
124346273 terry_u16 D July 30, 2021, 4:53 p.m. OK .NET Core C# TESTS 15 186 21708800 1600
124341004 Jirens_dad D July 30, 2021, 4:32 p.m. OK PyPy 2 TESTS 15 1887 47001600 1600
124368277 lebron87 D July 30, 2021, 9:23 p.m. OK PyPy 3 TESTS 15 343 35123200 1600
124367989 hritik3878 D July 30, 2021, 9:17 p.m. OK PyPy 3 TESTS 15 358 35123200 1600
124364574 Het_Fadia D July 30, 2021, 8:19 p.m. OK PyPy 3 TESTS 15 358 38912000 1600
124366048 Het_Fadia D July 30, 2021, 8:42 p.m. OK PyPy 3 TESTS 15 390 39014400 1600
124364818 Het_Fadia D July 30, 2021, 8:23 p.m. OK PyPy 3 TESTS 15 404 36864000 1600
124367038 Het_Fadia D July 30, 2021, 8:58 p.m. OK PyPy 3 TESTS 15 405 38912000 1600
124364758 Het_Fadia D July 30, 2021, 8:22 p.m. OK PyPy 3 TESTS 15 420 36864000 1600
124365415 Het_Fadia D July 30, 2021, 8:31 p.m. OK PyPy 3 TESTS 15 436 38912000 1600
124377473 bjy D July 31, 2021, 2:10 a.m. OK PyPy 3 TESTS 15 468 53350400 1600
124368452 lebron87 D July 30, 2021, 9:26 p.m. OK PyPy 3 TESTS 15 483 48537600 1600
124349675 NS3081992 D July 30, 2021, 5:19 p.m. OK Python 3 TESTS 15 1419 32358400 1600
124350837 NS3081992 D July 30, 2021, 5:30 p.m. OK Python 3 TESTS 15 1747 33894400 1600
124353390 NS3081992 D July 30, 2021, 5:58 p.m. OK Python 3 TESTS 15 1996 33075200 1600
124338908 ttim D July 30, 2021, 4:27 p.m. OK Scala TESTS 15 1653 64819200 1600

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