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MStrechen
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Матвій Стречень
MStrechen
Ukraine
Ukraine
Joined Sep 26, 2017
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MStrechen has joined contest 2021-2022 ICPC, SEERC, 1/8 Final14 days ago
MStrechen has joined contest Trees3 months ago
MStrechen solved problem Gardener-painter (#17) on first attempt5 months ago
MStrechen left a comment in discussion Maximum of absolute values (#914)9 months ago

Huseyn012 I see you were able to get 100%, do you still need any help?

MStrechen left a comment in discussion The sum of the largest and the smallest (#928)9 months ago

Huseyn012 I see you were able to fix the problem and get 100% 🔥

MStrechen left a comment in discussion Change max and min (#7849)9 months ago

Huseyn012 hi, I can't see any of your submissions scoring 90% points in the system, only 0% and 10%. Could you please share the id of the submission you are talking about?

MStrechen left a comment in discussion GCD (#137)10 months ago

user893965 hi! You have quite a small bug in your solution (likely due to copy-paste), I would recommend reviewing the for loop

MStrechen left a comment in discussion Euphony (#3009)10 months ago

papaz239 hi, apologies for a delay in reply. The checker for this problem was missing, hence the WA. The checker is now fixed and some of your submissions were rejudged, so now you have an AC submission :)

MStrechen left a comment in discussion Anfisa’s Holiday (#53)10 months ago

user992277 дякую за пильність! Дійсно, задача "Паркет з трикутників" має схожу умову, однак дещо інші обмеження. Задача була додана досить давно (однією з перших), тож цілком імовірно, що тоді ця відмінність була суттєвою з точки зору швидкодії.

Ми змінили складність обох задач на "проста" і обʼєднали теги, щоб не заплутувати. Ще раз дякую!

MStrechen left a comment in discussion Full Steiner Topologies (#3508)10 months ago

CosRox Fixed

MStrechen left a comment in discussion Tic-tac-toe (#1800)10 months ago

arseniy2412koN доброго дня! Ваш приклад було додано в набір тестування (тестів тепер 45, а не 44), однак зверніть увагу: той текст, який ви надіслали, містить "пробіл нульової довжини" у декількох місцях (U+200B). Через це деякі розвʼязки можуть працювати некоректно (Python викидає помилку ValueError: invalid literal for int() with base 10: '\u200b1', у той час як умовний C++ може "тихо" зчитувати некоректне значення).

MStrechen left a comment in discussion Hide and seek (#6588)10 months ago

qwertysun Hi, the time limit seems to be correct. We have a solution with 381 ms of execution time, so it's quite solvable.

Time complexity of the mentioned solution is O(S•(N+M)•log(N+M)). While I could send you a link, I think you could solve it by your own :)

MStrechen solved problem Lovely Elephants (#4715) on first attempt11 months ago
MStrechen left a comment in discussion Casino (#2993)11 months ago

user432081 thanks a lot for your comment, the checker indeed was incorrect. We've now fixed the issue and retested all the submissions :)

MStrechen has joined contest Two pointers technique12 months ago
MStrechen left a comment in discussion Count the Number of Cycles (#3785)12 months ago

papaz239 Hi, thanks for flagging this issue! You are right, the test #14 was indeed broken. We've updated the test and rejudged your submissions, now they are all accepted :)

Aplogies for inconvenience

MStrechen has joined contest ІІ stage of All-Ukrainian informatics olympiad in Zhitomyr region 17.12.202212 months ago
MStrechen solved problem Number of inversions (#4261) on 2 attempt1 year ago
MStrechen solved problem Counting sort (#2327) on first attempt1 year ago
MStrechen solved problem Cute patterns 1 (#1761) on 2 attempt1 year ago
MStrechen has joined contest DSLCS 2011 Dynamic programming. Favorites1 year ago
MStrechen has joined contest WEEK17_2 DYNAMIC1 year ago
MStrechen left a comment in discussion The level of palindrome (#29)1 year ago

elliotalders0n I think on the step two it should be 1433 + 3341 and not 3314. And 1433 + 3341 would give you 4774, which is a palindrome :)

MStrechen has joined contest Support Book F. Menshikova Session 51 year ago
MStrechen solved hidden problem on first attempt1 year ago