Educational Codeforces Round 166 (Rated for Div. 2)

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
1976 Educational Codeforces Round 166 (Rated for Div. 2) FINISHED False 7200 14743499 May 30, 2024, 2:35 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 4625 ) D Invertible Bracket Sequences PROGRAMMING binary search combinatorics data structures divide and conquer implementation two pointers

B'A regular bracket sequence is a bracket sequence that can be transformed into a correct arithmetic expression by inserting characters '1 ' and '+ ' between the original characters of the sequence. For example: Let 's define the inverse of the bracket sequence as follows: replace all brackets '( ' with ') ', and vice versa (all brackets ') ' with '( '). For example, strings "()((" and ")())" are inverses of each other. You are given a regular bracket sequence s . Calculate the number of pairs of integers (l,r) ( 1 <= l <= r <= |s| ) such that if you replace the substring of s from the l -th character to the r -th character (inclusive) with its inverse, s will still be a regular bracket sequence. The first line contains a single integer t ( 1 <= t <= 10^4 ) -- the number of test cases. The only line of each test case contains a non-empty regular bracket sequence; it consists only of characters '( ' and/or ') '. Additional constraint on the input: the total length of the regular bracket sequences over all test cases doesn 't exceed 2 cdot 10^5 . For each test case, print a single integer -- the number of pairs (l,r) meeting the conditions from the statement. In the first example, there is only one pair: In the second example, there are no pairs. In the third example, there are three pairs: '...

Tutorials

Educational Codeforces Round 166 Editorial

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
263509928 og.kostya D May 31, 2024, 2:10 p.m. OK C# 10 TESTS 24 202 30822400
263388218 Wrong_Answer_on_test_99 D May 30, 2024, 9:28 p.m. OK C# 10 TESTS 24 687 33280000
263407766 karamkontar D May 31, 2024, 4:17 a.m. OK C# 10 TESTS 24 905 40345600
263408223 karamkontar D May 31, 2024, 4:22 a.m. OK C# 10 TESTS 24 906 41267200
263570702 namtao97 D June 1, 2024, 3:58 a.m. OK C++14 (GCC 6-32) TESTS 24 46 921600
263422479 paramec1um D May 31, 2024, 6:35 a.m. OK C++14 (GCC 6-32) TESTS 24 46 3276800
263407344 Algorysh D May 31, 2024, 4:11 a.m. OK C++14 (GCC 6-32) TESTS 24 61 204800
263572714 TomGreen D June 1, 2024, 4:22 a.m. OK C++14 (GCC 6-32) TESTS 24 61 1024000
263626952 NJX4122 D June 1, 2024, 12:12 p.m. OK C++14 (GCC 6-32) TESTS 24 61 32051200
263443151 tryandtryagain D May 31, 2024, 9:35 a.m. OK C++14 (GCC 6-32) TESTS 24 62 3174400
263551844 Leeda D May 31, 2024, 9:27 p.m. OK C++14 (GCC 6-32) TESTS 24 77 0
263640809 Kent530 D June 1, 2024, 2:14 p.m. OK C++14 (GCC 6-32) TESTS 24 77 204800
263566420 OIDragon D June 1, 2024, 3:02 a.m. OK C++14 (GCC 6-32) TESTS 24 93 0
263590012 mamion D June 1, 2024, 7:14 a.m. OK C++14 (GCC 6-32) TESTS 24 93 102400
263424082 flashmt D May 31, 2024, 6:47 a.m. OK C++17 (GCC 7-32) TESTS 24 46 0
263419882 rishendraT D May 31, 2024, 6:15 a.m. OK C++17 (GCC 7-32) TESTS 24 46 0
263407733 wangpaopao1 D May 31, 2024, 4:16 a.m. OK C++17 (GCC 7-32) TESTS 24 46 0
263400996 Bonelight D May 31, 2024, 2:45 a.m. OK C++17 (GCC 7-32) TESTS 24 46 0
263398281 lambour D May 31, 2024, 1:53 a.m. OK C++17 (GCC 7-32) TESTS 24 46 0
263579632 wasso D June 1, 2024, 5:43 a.m. OK C++17 (GCC 7-32) TESTS 24 46 1638400
263422687 SachanSagar D May 31, 2024, 6:37 a.m. OK C++17 (GCC 7-32) TESTS 24 46 1638400
263578712 wasso D June 1, 2024, 5:34 a.m. OK C++17 (GCC 7-32) TESTS 24 46 1740800
263427602 yumingsk D May 31, 2024, 7:15 a.m. OK C++17 (GCC 7-32) TESTS 24 61 0
263420625 0x3ea D May 31, 2024, 6:21 a.m. OK C++17 (GCC 7-32) TESTS 24 61 0
263412026 ntxyl D May 31, 2024, 5:02 a.m. OK C++20 (GCC 13-64) TESTS 24 46 102400
263690261 N_z__ D June 2, 2024, 1:38 a.m. OK C++20 (GCC 13-64) TESTS 24 46 204800
263420325 TheRedStone D May 31, 2024, 6:18 a.m. OK C++20 (GCC 13-64) TESTS 24 46 3276800
263399927 pray4u D May 31, 2024, 2:26 a.m. OK C++20 (GCC 13-64) TESTS 24 46 4812800
263625631 divanik D June 1, 2024, 12:01 p.m. OK C++20 (GCC 13-64) TESTS 24 46 100249600
263406072 KluydQ D May 31, 2024, 3:55 a.m. OK C++20 (GCC 13-64) TESTS 24 46 104243200
263588464 tiger_34 D June 1, 2024, 7:01 a.m. OK C++20 (GCC 13-64) TESTS 24 61 0
263552040 abdalrahem.r.dado D May 31, 2024, 9:31 p.m. OK C++20 (GCC 13-64) TESTS 24 61 0
263404451 tyr0Whiz D May 31, 2024, 3:34 a.m. OK C++20 (GCC 13-64) TESTS 24 61 0
263584229 tiger_34 D June 1, 2024, 6:27 a.m. OK C++20 (GCC 13-64) TESTS 24 61 102400
263619092 Kevin_juruo_awa D June 1, 2024, 11:12 a.m. OK GNU C11 TESTS 24 77 1126400
263617493 Kevin_juruo_awa D June 1, 2024, 11:01 a.m. OK GNU C11 TESTS 24 77 1126400
263610018 Kevin_juruo_awa D June 1, 2024, 10 a.m. OK GNU C11 TESTS 24 92 1126400
263623925 Kevin_juruo_awa D June 1, 2024, 11:48 a.m. OK GNU C11 TESTS 24 93 1126400
263694716 nguyenquocthao00 D June 2, 2024, 3:20 a.m. OK Go TESTS 24 77 7987200
263694472 nguyenquocthao00 D June 2, 2024, 3:14 a.m. OK Go TESTS 24 77 8089600
263395436 79209748 D May 31, 2024, 12:43 a.m. OK Go TESTS 24 265 54579200
263555899 dzhi D May 31, 2024, 11:09 p.m. OK Java 21 TESTS 24 280 3481600
263395144 duyipeng D May 31, 2024, 12:35 a.m. OK Java 21 TESTS 24 311 5529600
263391899 dzhi D May 30, 2024, 10:56 p.m. OK Java 21 TESTS 24 405 17100800
263607034 dineshchandran311 D June 1, 2024, 9:34 a.m. OK Java 21 TESTS 24 421 34816000
263686996 ItsLever D June 1, 2024, 11:55 p.m. OK Java 21 TESTS 24 436 33382400
263612644 yang_wei D June 1, 2024, 10:23 a.m. OK Java 21 TESTS 24 483 38195200
263395225 Tcpc8 D May 31, 2024, 12:37 a.m. OK Java 21 TESTS 24 593 40243200
263400405 defenq D May 31, 2024, 2:35 a.m. OK Java 21 TESTS 24 671 34304000
263399554 aakashattri D May 31, 2024, 2:19 a.m. OK Java 21 TESTS 24 703 34099200
263520088 kasiru_69 D May 31, 2024, 3:35 p.m. OK Java 8 TESTS 24 280 19865600
263613457 nomadicjuggrnaut D June 1, 2024, 10:30 a.m. OK Java 8 TESTS 24 437 36659200
263382969 Yousef_Badr D May 30, 2024, 7:57 p.m. OK Java 8 TESTS 24 968 18534400
263382924 faresbadr316 D May 30, 2024, 7:56 p.m. OK Java 8 TESTS 24 1077 18534400
263400758 gsomani D May 31, 2024, 2:41 a.m. OK PyPy 3 TESTS 24 202 5939200
263519544 khan_ali D May 31, 2024, 3:30 p.m. OK PyPy 3 TESTS 24 453 13721600
263515230 liupengsay D May 31, 2024, 2:53 p.m. OK PyPy 3-64 TESTS 24 109 4198400
263412170 MengxinWalkingGrass D May 31, 2024, 5:03 a.m. OK PyPy 3-64 TESTS 24 109 15257600
263404372 gche D May 31, 2024, 3:33 a.m. OK PyPy 3-64 TESTS 24 124 3584000
263414363 gche D May 31, 2024, 5:25 a.m. OK PyPy 3-64 TESTS 24 124 3788800
263403859 smilences D May 31, 2024, 3:26 a.m. OK PyPy 3-64 TESTS 24 124 4403200
263397917 _twi_nami D May 31, 2024, 1:45 a.m. OK PyPy 3-64 TESTS 24 124 5222400
263519307 accelerate_nju D May 31, 2024, 3:28 p.m. OK PyPy 3-64 TESTS 24 124 5939200
263408618 Your6QwQ D May 31, 2024, 4:26 a.m. OK PyPy 3-64 TESTS 24 139 5324800
263415326 gche D May 31, 2024, 5:33 a.m. OK PyPy 3-64 TESTS 24 140 3584000
263395480 PQ2876 D May 31, 2024, 12:45 a.m. OK PyPy 3-64 TESTS 24 140 3993600
263383548 OLOGY D May 30, 2024, 8:06 p.m. OK Python 3 TESTS 24 171 819200
263671658 awesomep D June 1, 2024, 6:45 p.m. OK Python 3 TESTS 24 171 1638400
263426117 ag30 D May 31, 2024, 7:03 a.m. OK Python 3 TESTS 24 171 1638400
263413131 NS3081992 D May 31, 2024, 5:13 a.m. OK Python 3 TESTS 24 249 29184000
263412600 NS3081992 D May 31, 2024, 5:07 a.m. OK Python 3 TESTS 24 249 29286400
263575381 PlaceOrientedProgrammer D June 1, 2024, 4:55 a.m. OK Rust 2021 TESTS 24 62 921600
263590055 kiddoos D June 1, 2024, 7:14 a.m. OK Rust 2021 TESTS 24 77 512000
263605883 M1ngXu D June 1, 2024, 9:25 a.m. OK Rust 2021 TESTS 24 171 28160000

remove filters

Back to search problems