Many codes are going to fail system test today for the problem B of contest Codeforces round 717.Its my prediction,let's see what happens.
→ Обратите внимание
До соревнования
Rayan Programming Contest 2024 - Selection (Codeforces Round 989, Div. 1 + Div. 2)
03:39:13
Зарегистрироваться »
Rayan Programming Contest 2024 - Selection (Codeforces Round 989, Div. 1 + Div. 2)
03:39:13
Зарегистрироваться »
*есть доп. регистрация
→ Лидеры (рейтинг)
| № | Пользователь | Рейтинг |
|---|---|---|
| 1 | tourist | 3993 |
| 2 | jiangly | 3743 |
| 3 | orzdevinwang | 3707 |
| 4 | Radewoosh | 3627 |
| 5 | jqdai0815 | 3620 |
| 6 | Benq | 3564 |
| 7 | Kevin114514 | 3443 |
| 8 | ksun48 | 3434 |
| 9 | Rewinding | 3397 |
| 10 | Um_nik | 3396 |
| Страны | Города | Организации | Всё → |
→ Лидеры (вклад)
| № | Пользователь | Вклад |
|---|---|---|
| 1 | cry | 167 |
| 2 | Um_nik | 163 |
| 3 | atcoder_official | 162 |
| 3 | maomao90 | 162 |
| 5 | adamant | 159 |
| 6 | -is-this-fft- | 158 |
| 7 | awoo | 155 |
| 8 | TheScrasse | 154 |
| 9 | Dominater069 | 153 |
| 10 | djm03178 | 152 |
→ Найти пользователя
→ Прямой эфир
Codeforces (c) Copyright 2010-2024 Михаил Мирзаянов
Соревнования по программированию 2.0
Время на сервере: 30.11.2024 13:55:47 (i1).
Десктопная версия, переключиться на мобильную.
При поддержке
Nice
gg :(
gg :(
orz
What if you are mohammedehab2002's alt account and you knew pretests were weak? :)
U might be right lol
I'm curious to know what motivated you to picking problem B as that special problem
This seems to always happen with bruteforce range condition problems, as people always submit cheese sols. But perhaps there is something more?
I failed it(I qualify as a cheese sol writer)can you tell me how not to approach such questions or how to do so. What to avoid and all.
In my case, I mistakenly wrote a[i] in place of a[j] at one place and still my code passed pretest 2 and 3.
The reason i came to know because usual b problems for which answer is boolena type i.e yes or no 10^4 test cases are checked,but today only 5 test setseach having maximum 15 with 1 having just 2 test cases thus total mybe max 62 which is very very very less number of test cases to be checked for boolean type problems.
CF FST-Predictor
I initially thought that Xor of array should be 0. I got wrong answer on pretest 3. I was thinking of a counter case and then realize of a countercase like this and corrected myself:
4
3 3 3 0
Guess what the above case was the hack XD.
That is why I did stress testing already.
How to do stress testing for a problem ?
You can check Errichto's tutorial.
Can you please give me link ?
Here
Thanks <3