Stress Testing in Official Contests

→ Обратите внимание

До соревнования
Codeforces Round 986 (Div. 2)
09:44:01
Зарегистрироваться »

*есть доп. регистрация

→ Трансляции

Codeforces Round 986 (Div 2) - Solution Discussion

Shayan

До начала 11:49:01

Всё →

→ Лидеры (рейтинг)

№	Пользователь	Рейтинг
1	tourist	4009
2	jiangly	3821
3	Benq	3736
4	Radewoosh	3631
5	jqdai0815	3620
6	orzdevinwang	3529
7	ecnerwala	3446
8	Um_nik	3396
9	ksun48	3388
10	gamegame	3386

Страны | Города | Организации

Всё →

→ Лидеры (вклад)

№	Пользователь	Вклад
1	cry	164
1	maomao90	164
3	Um_nik	163
4	atcoder_official	161
5	-is-this-fft-	158
6	awoo	157
7	adamant	156
8	TheScrasse	154
8	nor	154
10	Dominater069	153

Всё →

→ Найти пользователя

→ Прямой эфир

Детальнее →

Блог пользователя NeroZein

Stress Testing in Official Contests

Автор NeroZein, история, 19 месяцев назад, По-английски

Since our TST is near (25 / 4), I was thinking about a way to stress test my code on windows without having to write a messy code or a 100 lines script, is this possible in some way ?

ioi, stress testing

NeroZein
19 месяцев назад
23

Комментарии (20)

Показать архивные | Написать комментарий?

Esomer

19 месяцев назад, # |

+10

Hi!

First of all, good luck on the TST!

Now, I can only tell you how I usually do stress testing, which I don't think it's particularly messy. I usually have two functions, the bruteforce and the buggy solution, to which you pass the input as parameters. I don't think it can get much cleaner than this without scripts.

All you have to do is generate the input in main and pass it to the functions, until you find some input for which the answers are different.

I don't know if this is what you wanted to know, feel free to ask if not. Also, I can't find an example right now but if you're really interested I can try to look more in depth.

→ Ответить

codeboy830

19 месяцев назад, # ^ |

-9

Hi. I want to more talk about it. Are you good at programming?

→ Ответить

Esomer

19 месяцев назад, # ^ |

+21

No, unfortunately I'm bad at programming, but I can discuss it with you, if you want.

→ Ответить

NeroZein

19 месяцев назад, # ^ |

Thanks !

I've actually tried doing this but it's sometimes really painful when you're using global arrays or other stuff

I'd be thankful if you could provide some impl advices tho

→ Ответить

Esomer

19 месяцев назад, # ^ |

I usually don't use global variables, I like to pass everything but reference, but when I use them what I usually do is put everything inside of classes.

Like, all the variables I need for one function + the function inside a class, and having two separate classes, one for the brute and one for the buggy sol, then you can stress test without many problems.

→ Ответить

Borgov

19 месяцев назад, # |

Check this blog

→ Ответить

NeroZein

19 месяцев назад, # ^ |

It's on linux :(

→ Ответить

Wandoka

19 месяцев назад, # |

I have a .bat file that does it for me

Spoiler

@echo off

g++ -std=c++17 -o solution solution.cpp

g++ -std=c++17 -o brute brute.cpp

g++ -std=c++17 -o TestGenerator TestGenerator.cpp

for /l %%x in (1, 1, 1000) do (

TestGenerator > input.in

    solution < input.in > output.out

    brute < input.in > output2.out

    fc output.out output2.out > nul

    if ERRORLEVEL 1 (

        echo INPUT

        type input.in

        echo.

        echo SOLUTION OUTOUT

        type output.out

        echo.

        echo CORRECT OUTPUT

        type output2.out

        echo.

        echo.

    )

)


echo all tests passed

and i run it from cmd window

→ Ответить

NeroZein

19 месяцев назад, # ^ |

I can't write all of this inside a 5 hours contest not to mention it's hard to remember

→ Ответить

SleepyOverlord

19 месяцев назад, # ^ |

A bare-bones version, failing input will be in b.in, otherwise it will run forever (you can stop it by pressing CTRL+C).

@echo off
g++ good.cpp -o good.exe
g++ gen.cpp -o gen.exe
g++ bad.cpp -o bad.exe
:start
  gen.exe > b.in
  good.exe < b.in > good.out
  bad.exe < b.in > bad.out
  fc /c good.out bad.out > fc.txt
if %errorlevel%==0 goto start

→ Ответить

adityagamer

19 месяцев назад, # |

You can use Codepal for stress test.

→ Ответить

NeroZein

19 месяцев назад, # ^ |

I can't use interenet inside the contest

→ Ответить

adityagamer

19 месяцев назад, # ^ |

You don't internet for Stress testing with Codepal

→ Ответить

Abito

19 месяцев назад, # |

← Rev. 2 →

If you don't want to write code, you're gonna need to use a tool, which is unallowed. Just write code on your own. Also I remember Coach Geo told me that we're not going to use our computers. Not sure though.

→ Ответить