Piet, 6×9 = 54 pixels
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Golfed version of Thomas Polasek's factorial program in Piet's samples page.
Given an integer \$n\$, determine whether \$n\$ can be expressed as the sum of two square numbers, that is \$\exists a,b\in\mathbb Z|n=a^2+b^2\$.
0 -> truthy
1 -> truthy
2 -> truthy
3 -> falsy
4 -> truthy
5 -> truthy
6 -> falsy
7 -> falsy
11 -> falsy
9997 -> truthy
9999 ->...
C++ (gcc), 27 bytes
main(){std::cout<<'5'*'&';}
Try it online!
You work for a social media platform, and are told to create a program in a language of your choice that will automatically flag certain post titles as "spam".
Your program must take the title as a string as input and output a truthy value if the title is spam, and a falsey value if not.
To quali...
Metacodegolf
Your task is to make the Swiss army knife of code golf submissions. Pick \$n\$ questions that have been asked before on this site (some additional restrictions in rules section). Write \$n\$ programs in one language that satisfy the rules of those questions. Your submission will be a...
