Questions tagged [cops-and-robbers]
For challenges which consist of two adversary (and asymmetric) sub-challenges.
159
questions
6
votes
12
answers
946
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Argument of a complex number (Robbers)
V1.1: Added criterion to help with tiebreakers, a bit overkill but still.V1.2: It's April 15th!
Task: Crack the scrambled code for calculating the argument of a complex number \$z=x+iy\$ given two ...
- 421
11
votes
23
answers
2k
views
Argument of a complex number (Cops)
This is the cop's thread, where one should post the scrambled code. Here is the robbers' thread where the cracked source should be posted and linked to the cop's answer.
NB: I am currently writing up ...
- 421
0
votes
9
answers
582
views
Can you decrypt me? (Robbers)
Can you decrypt me?
Robbers
Find any combination of \$n\$ working chars to change and what they should change into, where \$n\$ is chosen by the cop. You cannot change less than n chars, only exactly \...
- 4,193
2
votes
9
answers
608
views
Can you decrypt me? (Cops)
Can you decrypt me?
Cops
Cops, post obfuscated code that hides a number \$n\$ (n must not be greater than the program length) inside its code. If \$n\$ chars are changed (no additions or deletions), ...
- 4,193
3
votes
1
answer
232
views
Hashers and Crashers (Robbers)
This is the robbers thread of this cops and robbers challenge. The cops thread is here.
Related, but hashes numbers instead of strings and uses a different scoring system.
Definitions
A hash collision ...
7
votes
1
answer
272
views
Hashers and Crashers (Cops)
This is the cops thread of this cops and robbers challenge. The robbers thread is here.
Related, but hashes numbers instead of strings and uses a different scoring system.
Definitions
A hash collision ...
8
votes
8
answers
656
views
Magic OEIS formulae (Robbers' thread)
This is the robbers' thread. See the cops' thread here.
In this cops and robbers challenge, the cops will be tasked with writing an algorithm that computes some function of their choice, while the ...
- 22.7k
12
votes
9
answers
765
views
Magic OEIS formulae (Cops' thread)
This is the cops' thread. See the robbers' thread here.
In this cops and robbers challenge, the cops will be tasked with writing an algorithm that computes some function of their choice, while the ...
- 22.7k
11
votes
11
answers
1k
views
(Robbers) Fast and Golfiest Season 1: The Lord of the Strings
Fast and Golfiest Robbers Thread
Welcome to the first season of Fast and Golfiest, a cops-and-robbers challenge! I designed this challenge to encourage competitive coding for efficiency (fastest ...
- 600
18
votes
15
answers
1k
views
(Cops) Fast and Golfiest Season 1: The Lord of the Strings
Fast and Golfiest Cops Thread
Welcome to the first season of Fast and Golfiest, a cops-and-robbers challenge! I designed this challenge to encourage competitive coding for efficiency (fastest ...
- 600
10
votes
9
answers
2k
views
Polyglot Quiz (Robbers' thread)
This is the robbers' thread. For the main rules to this challenge see the cops' thread
In this challenge, robbers will choose a cop's vulnerable or safe post and try to figure out a pair of languages ...
- 99k
22
votes
15
answers
3k
views
Polyglot Quiz (Cops' thread)
This is the cops' thread of a cops-and-robbers challenge. The robbers' thread can be found here
In this challenge as a cop you will choose two programming languages A and B, as well as a non-empty ...
- 99k
9
votes
10
answers
639
views
Two In One: Guess That Language - Robbers
Cops' challenge
This cops-and-robbers challenge challenges the Cop to write a non-empty program that, when run, produces some non-empty output in language A, and, when reversed, produces some non-...
- 1,548
19
votes
15
answers
2k
views
Two In One: Guess That Language - Cops
Robber's challenge
This cops-and-robbers challenge challenges the Cop to write a non-empty program that, when run, produces some non-empty output in language A, and, when reversed, produces some non-...
- 1,548
29
votes
21
answers
4k
views
Add a hidden language to a polyglot
Inspired/mostly copied but I don't think it's a dupe. Also Inspired.
In this challenge, you will create polyglots that include all languages from previous answers, and another language which you won't ...
- 39.2k