Harbour.Space Scholarship Contest 2021-2022 (open for everyone, rated, Div. 1 + Div. 2)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
1553 Harbour.Space Scholarship Contest 2021-2022 (open for everyone, rated, Div. 1 + Div. 2) FINISHED False 9000 110215463 July 22, 2021, 2:35 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 13967 ) D Backspace PROGRAMMING greedy strings two pointers

B'You are given two strings s and t , both consisting of lowercase English letters. You are going to type the string s character by character, from the first character to the last one. When typing a character, instead of pressing the button corresponding to it, you can press the "Backspace" button. It deletes the last character you have typed among those that aren 't deleted yet (or does nothing if there are no characters in the current string). For example, if s is "abcbd" and you press Backspace instead of typing the first and the fourth characters, you will get the string "bd" (the first press of Backspace deletes no character, and the second press deletes the character 'c '). Another example, if s is "abcaa" and you press Backspace instead of the last two letters, then the resulting text is "a". Your task is to determine whether you can obtain the string t , if you type the string s and press "Backspace" instead of typing several (maybe zero) characters of s . The first line contains a single integer q ( 1 <= q <= 10^5 ) -- the number of test cases. The first line of each test case contains the string s ( 1 <= |s| <= 10^5 ). Each character of s is a lowercase English letter. The second line of each test case contains the string t ( 1 <= |t| <= 10^5 ). Each character of t is a lowercase English letter. It is guaranteed that the total number of characters in the strings over all test cases does not exceed 2 cdot 10^5 . For each test case, print "YES" if you can obtain the string t by typing the string s and replacing some characters with presses of "Backspace" button, or "NO" if you cannot. You may print each letter in any case (YES, yes, Yes will all be recognized as positive answer, NO, no and nO will all be recognized as negative answer). Consider the example test from the statement. In order to obtain "ba" from "ababa", you may press Backspace '...

Tutorials

Harbour.Space Scholarship Contest 2021-2022 (Div. 1 + Div. 2) Editorial

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
123382919 1435730 D July 23, 2021, 3:02 a.m. OK GNU C11 TESTS 119 62 3891200
123346148 6945752024PhucLX D July 22, 2021, 4:47 p.m. OK GNU C11 TESTS 119 374 3891200
123375580 hkxadpall D July 23, 2021, 12:58 a.m. OK GNU C++11 TESTS 119 31 8499200
123384067 _horizon_ D July 23, 2021, 3:18 a.m. OK GNU C++11 TESTS 119 46 4096000
123346017 TheOldDriver D July 22, 2021, 4:46 p.m. OK GNU C++11 TESTS 119 46 4096000
123392028 _Sunrise D July 23, 2021, 5:10 a.m. OK GNU C++11 TESTS 119 46 4096000
123387224 ColdHeat D July 23, 2021, 4:02 a.m. OK GNU C++11 TESTS 119 46 4096000
123374497 1443356159 Capitalist_Wang D July 23, 2021, 12:30 a.m. OK GNU C++11 TESTS 119 46 4300800
123349141 mrclr D July 22, 2021, 4:56 p.m. OK GNU C++11 TESTS 119 46 5324800
123380140 ILoLy D July 23, 2021, 2:21 a.m. OK GNU C++11 TESTS 119 46 5734400
123394368 dysyn1413 D July 23, 2021, 5:39 a.m. OK GNU C++11 TESTS 119 46 48537600
123392243 _starling_ D July 23, 2021, 5:13 a.m. OK GNU C++11 TESTS 119 61 4096000
123383599 vspawar056 D July 23, 2021, 3:12 a.m. OK GNU C++14 TESTS 119 31 4403200
123362506 antguz D July 22, 2021, 7:39 p.m. OK GNU C++14 TESTS 119 46 3993600
123389917 vjudge1 D July 23, 2021, 4:42 a.m. OK GNU C++14 TESTS 119 46 3993600
123395622 chongyatu D July 23, 2021, 5:53 a.m. OK GNU C++14 TESTS 119 46 4300800
123394438 sainiprateek37 D July 23, 2021, 5:39 a.m. OK GNU C++14 TESTS 119 46 4300800
123394316 N1NT3NDO_6666 D July 23, 2021, 5:38 a.m. OK GNU C++14 TESTS 119 46 4300800
123394100 Araragi D July 23, 2021, 5:36 a.m. OK GNU C++14 TESTS 119 46 4300800
123393281 krhariharan D July 23, 2021, 5:26 a.m. OK GNU C++14 TESTS 119 46 4300800
123396312 inazuma_11 D July 23, 2021, 6:01 a.m. OK GNU C++14 TESTS 119 46 4300800
123395491 I_francis D July 23, 2021, 5:51 a.m. OK GNU C++14 TESTS 119 46 4300800
123362151 iancu D July 22, 2021, 7:34 p.m. OK GNU C++17 TESTS 119 46 3993600
123396317 Lhohelhohehmm D July 23, 2021, 6:01 a.m. OK GNU C++17 TESTS 119 46 4198400
123395687 Deep_20 D July 23, 2021, 5:54 a.m. OK GNU C++17 TESTS 119 46 4300800
123396335 anurag_2025 D July 23, 2021, 6:01 a.m. OK GNU C++17 TESTS 119 46 4300800
123396222 PrateekShakya D July 23, 2021, 6 a.m. OK GNU C++17 TESTS 119 46 4300800
123395919 satyamtomar D July 23, 2021, 5:56 a.m. OK GNU C++17 TESTS 119 46 4300800
123395488 coder_aj2007 D July 23, 2021, 5:51 a.m. OK GNU C++17 TESTS 119 46 4300800
123395214 alphacoder49 D July 23, 2021, 5:48 a.m. OK GNU C++17 TESTS 119 46 4300800
123394749 Devendra2104 D July 23, 2021, 5:43 a.m. OK GNU C++17 TESTS 119 46 4300800
123394500 huangxihan D July 23, 2021, 5:40 a.m. OK GNU C++17 TESTS 119 46 4300800
123368018 Linkus D July 22, 2021, 9:14 p.m. OK GNU C++17 (64) TESTS 119 31 4710400
123368557 emorgan5289 D July 22, 2021, 9:26 p.m. OK GNU C++17 (64) TESTS 119 31 4812800
123386114 DmitryLzr D July 23, 2021, 3:47 a.m. OK GNU C++17 (64) TESTS 119 31 4812800
123379239 Alphagocc D July 23, 2021, 2:06 a.m. OK GNU C++17 (64) TESTS 119 31 5222400
123357185 kaiboy D July 22, 2021, 6:44 p.m. OK GNU C++17 (64) TESTS 119 46 4505600
123363252 ars9 D July 22, 2021, 7:49 p.m. OK GNU C++17 (64) TESTS 119 46 4505600
123383984 vgtb D July 23, 2021, 3:17 a.m. OK GNU C++17 (64) TESTS 119 46 4505600
123374760 Lxzy_Zby D July 23, 2021, 12:37 a.m. OK GNU C++17 (64) TESTS 119 46 4710400
123346553 willy108 D July 22, 2021, 4:48 p.m. OK GNU C++17 (64) TESTS 119 46 4710400
123396265 chandrashekarvt D July 23, 2021, 6 a.m. OK GNU C++17 (64) TESTS 119 46 4812800
123364688 silver_sword D July 22, 2021, 8:10 p.m. OK Java 11 TESTS 119 202 23859200
123395741 SaberXpro D July 23, 2021, 5:54 a.m. OK Java 11 TESTS 119 217 23859200
123370930 Hemose D July 22, 2021, 10:27 p.m. OK Java 11 TESTS 119 218 23859200
123367693 Debojit219 D July 22, 2021, 9:06 p.m. OK Java 11 TESTS 119 218 23859200
123389321 Tharun0102 D July 23, 2021, 4:33 a.m. OK Java 11 TESTS 119 233 23859200
123386383 mphillotry D July 23, 2021, 3:50 a.m. OK Java 11 TESTS 119 233 23859200
123363779 tony_heart D July 22, 2021, 7:56 p.m. OK Java 11 TESTS 119 234 23756800
123349206 ryanberg D July 22, 2021, 4:57 p.m. OK Java 11 TESTS 119 264 23859200
123357774 Andwerp D July 22, 2021, 6:48 p.m. OK Java 11 TESTS 119 280 23859200
123360310 Nicolas125841 D July 22, 2021, 7:11 p.m. OK Java 11 TESTS 119 530 23859200
123394961 ganesh_6 D July 23, 2021, 5:45 a.m. OK Java 8 TESTS 119 124 20480000
123393805 guru1603 D July 23, 2021, 5:32 a.m. OK Java 8 TESTS 119 140 20480000
123392600 dogranmol D July 23, 2021, 5:18 a.m. OK Java 8 TESTS 119 140 20480000
123355830 Whiplash99 D July 22, 2021, 6:37 p.m. OK Java 8 TESTS 119 140 20480000
123357756 RonWonWon D July 22, 2021, 6:48 p.m. OK Java 8 TESTS 119 155 20480000
123348550 VishuTomar D July 22, 2021, 4:55 p.m. OK Java 8 TESTS 119 155 20480000
123392411 _robindhankhar D July 23, 2021, 5:15 a.m. OK Java 8 TESTS 119 170 20480000
123347558 HideBeyondYou D July 22, 2021, 4:51 p.m. OK Java 8 TESTS 119 170 20480000
123351936 nuni. D July 22, 2021, 5:04 p.m. OK Java 8 TESTS 119 234 20480000
123389066 pikachu_pika_pika D July 23, 2021, 4:29 a.m. OK Java 8 TESTS 119 764 20582400
123370868 reanimatorzon D July 22, 2021, 10:25 p.m. OK Kotlin TESTS 119 155 20992000
123368286 dandoh D July 22, 2021, 9:20 p.m. OK Kotlin TESTS 119 810 32563200
123378052 zhangpangpang D July 23, 2021, 1:47 a.m. OK MS C++ 2017 TESTS 119 62 3993600
123377886 zhangpangpang D July 23, 2021, 1:44 a.m. OK MS C++ 2017 TESTS 119 62 3993600
123349552 sazarov83 D July 22, 2021, 4:58 p.m. OK MS C++ 2017 TESTS 119 77 3993600
123360254 NikoSun D July 22, 2021, 7:11 p.m. OK MS C++ 2017 TESTS 119 77 4096000
123390771 vjudge1 D July 23, 2021, 4:53 a.m. OK MS C++ 2017 TESTS 119 78 3891200
123377558 FLself D July 23, 2021, 1:38 a.m. OK MS C++ 2017 TESTS 119 78 4096000
123387187 icecomet D July 23, 2021, 4:01 a.m. OK MS C++ 2017 TESTS 119 78 7168000
123393511 2019112325 D July 23, 2021, 5:29 a.m. OK MS C++ 2017 TESTS 119 389 4096000
123379962 camacju D July 23, 2021, 2:18 a.m. OK MS C++ 2017 TESTS 119 405 4198400
123361713 Tangerine D July 22, 2021, 7:28 p.m. OK MS C++ 2017 TESTS 119 421 4198400
123361645 Het_Fadia D July 22, 2021, 7:27 p.m. OK PyPy 2 TESTS 119 155 30208000
123380408 Mukundan314 D July 23, 2021, 2:25 a.m. OK PyPy 2 TESTS 119 186 26521600
123360938 Het_Fadia D July 22, 2021, 7:18 p.m. OK PyPy 2 TESTS 119 187 30105600
123363297 Het_Fadia D July 22, 2021, 7:49 p.m. OK PyPy 2 TESTS 119 217 30208000
123357951 acorn11 D July 22, 2021, 6:50 p.m. OK PyPy 2 TESTS 119 1341 25702400
123372396 acorn11 D July 22, 2021, 11:14 p.m. OK PyPy 2 TESTS 119 1372 26828800
123361065 Het_Fadia D July 22, 2021, 7:20 p.m. OK PyPy 3 TESTS 119 202 27238400
123358913 jimm89 D July 22, 2021, 6:57 p.m. OK PyPy 3 TESTS 119 234 28467200
123375087 hxu10 D July 23, 2021, 12:46 a.m. OK PyPy 3 TESTS 119 234 29388800
123361445 puzzleVerma D July 22, 2021, 7:25 p.m. OK PyPy 3 TESTS 119 265 29798400
123346756 Believer_Ayush D July 22, 2021, 4:49 p.m. OK PyPy 3 TESTS 119 280 28876800
123391566 Munchy_1 D July 23, 2021, 5:04 a.m. OK PyPy 3 TESTS 119 280 29696000
123356984 sushmanth.dampur8780 D July 22, 2021, 6:43 p.m. OK PyPy 3 TESTS 119 280 29696000
123393748 Sameer-Mann D July 23, 2021, 5:32 a.m. OK PyPy 3 TESTS 119 280 29900800
123387515 kirito18086 D July 23, 2021, 4:06 a.m. OK PyPy 3 TESTS 119 280 29900800
123371288 yash490 D July 22, 2021, 10:37 p.m. OK PyPy 3 TESTS 119 280 94720000
123356497 acorn11 D July 22, 2021, 6:40 p.m. OK Python 2 TESTS 119 280 6860800
123393971 Bambam_Shivam D July 23, 2021, 5:34 a.m. OK Python 3 TESTS 119 358 8192000
123378133 M0u1ea5 D July 23, 2021, 1:48 a.m. OK Python 3 TESTS 119 374 7577600
123361835 KeiTsukishima D July 22, 2021, 7:29 p.m. OK Python 3 TESTS 119 436 7987200
123382283 srijan.sarkar D July 23, 2021, 2:52 a.m. OK Python 3 TESTS 119 498 7577600
123394536 sh1194 D July 23, 2021, 5:40 a.m. OK Python 3 TESTS 119 889 7270400
123381852 kaushik1877 D July 23, 2021, 2:47 a.m. OK Python 3 TESTS 119 904 7577600
123371243 Kagemeka D July 22, 2021, 10:36 p.m. OK Python 3 TESTS 119 935 8396800
123371310 Kagemeka D July 22, 2021, 10:38 p.m. OK Python 3 TESTS 119 982 8396800
123389093 Coding_RDX D July 23, 2021, 4:30 a.m. OK Python 3 TESTS 119 997 8704000
123356580 aryan_129 D July 22, 2021, 6:40 p.m. OK Python 3 TESTS 119 998 7680000
123382006 bqn D July 23, 2021, 2:49 a.m. OK Rust TESTS 119 1029 5222400

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