Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Visit Stack Exchange
Stack Internal
Knowledge at work
Bring the best of human thought and AI automation together at your work.
Explore Stack Internal
g2%k1-S Port of Kevin Cruijssen's MathGolf answer.
D2%s1-z*S Port of Jonathan Allan's Jelly answer.
g2%k1-S # Implicit input g k # Filter for those which are: 2% # Odd 1- # Subtract one from each S # Sum D2%s1-z*S # Implicit input D2% # Duplicate and mod by 2 s1- # Swap and subtract one z* # Multiply S # Sum D2%s1-z*S Port of Jonathan Allan's Jelly answer.
D2%s1-z*S # Implicit input D2% # Duplicate and mod by 2 s1- # Swap and subtract one z* # Multiply S # Sum g2%k1-S Port of Kevin Cruijssen's MathGolf answer.
D2%s1-z*S Port of Jonathan Allan's Jelly answer.
g2%k1-S # Implicit input g k # Filter for those which are: 2% # Odd 1- # Subtract one from each S # Sum D2%s1-z*S # Implicit input D2% # Duplicate and mod by 2 s1- # Swap and subtract one z* # Multiply S # Sum D2%s1-z*S Port of Jonathan Allan's Jelly answer.
D2%s1-z*S # Implicit input D2% # Duplicate and mod by 2 s1- # Swap and subtract one z* # Multiply S # Sum