## Boolean

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Points: 4
Time limit: 2.0s
Memory limit: 64M

Author:
Problem type

A boolean value can be either True or False. Given a string with less than 1000 characters with a number of space-separated not directives terminated by a True or False value, evaluate the boolean expression.

#### Sample Input 1

not not True

#### Sample Output 1

True

#### Sample Input 2

not not not False

#### Sample Output 2

True

## Comments

• andraantariksa  commented on April 26, 2019, 11:21 a.m.

I think the test case is too much.

• Piercenia  commented on Jan. 1, 2019, 12:48 a.m.

I need a bit of help after I had 250 successful cases something went wrong and I can't figure out what.

• Kirito  commented on Jan. 1, 2019, 2:37 a.m.

Try some cases, for example:

not not not False
• Piercenia  commented on Jan. 1, 2019, 3:03 p.m.

Thank you!

• Anoobis  commented on Dec. 18, 2018, 11:43 a.m.

i solved it and the output is correct, how come the first test case is wrong...

• Kirito  commented on Dec. 19, 2018, 9:53 a.m.

Congratulations on successfully convincing yourself that over 1000 people have solved this problem incorrectly.

Your program is what is incorrect, as you have not considered all cases. Specifically, there is a case where you output nothing.

• Anoobis  commented on Dec. 20, 2018, 1:52 p.m.

Thanks for the help LOL

• Zafirua  commented on Dec. 9, 2018, 3:57 p.m.

I can't find any way to get below 4.85 seconds in lua. ;-;

• HUMPYDUMPY  commented on Nov. 4, 2018, 2:48 p.m.

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• LiFengxun  commented on Oct. 20, 2018, 11:01 a.m.

wow!!! 498test cases!!!

• lele  commented on Jan. 27, 2019, 12:20 p.m.

I know! They went a bit overboard with the test cases. Pretty sure it took 30 seconds.

• geese  commented on Oct. 26, 2018, 2:05 p.m.
• VorticL  commented on Dec. 27, 2018, 9:34 p.m.

franxia is actually the teacher of all these students including me and when he taught us this case we copied his code and that's why its all the same

• andisong  commented on March 23, 2019, 5:05 p.m.

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• AlanL  commented on Oct. 20, 2018, 12:28 p.m.

Stated already... ↓

• Raymo111  commented on Aug. 7, 2018, 10:15 a.m.

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• xxsc  commented on July 5, 2018, 9:00 p.m.

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• TimothyW553  commented on July 6, 2018, 1:04 p.m.

Yeah cus I math.random'd it and the dark lord didn't want me to ac

• xxsc  commented on July 7, 2018, 8:56 p.m. edited

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• root  commented on June 22, 2017, 8:40 p.m.

Never thought I'd ever see a problem where the assembly solution is shorter than C++.

• println_hi_  commented on Oct. 20, 2016, 7:52 p.m.

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• Xyene  commented on Oct. 20, 2016, 7:57 p.m.

The format the input is given in is not a coincidence.

• richardyi25  commented on March 5, 2016, 10:18 p.m.

This problem might be a bit easy in Python

• Kirito  commented on March 5, 2016, 11:14 p.m.

Python 2, that is. Python 3 still requires work.

• richardyi25  commented on March 6, 2016, 11:30 a.m.

You can still do it in one line on Python 3 :)

• AceWrecke  commented on Sept. 26, 2017, 10:24 p.m.

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• Kirito  commented on March 6, 2016, 2:15 p.m.

Right. Python's an interpreted language. Gotta remember that.

On an unrelated note, I wonder if I can get AHK to solve equations by highlighting them using the same idea? Would save me so much time.

• moladan123  commented on March 6, 2016, 11:13 a.m.

Not if you know the right shortcut ;)

• TimothyW553  commented on Aug. 7, 2018, 10:49 a.m.

I mean that's why it's not 3 points?