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Search options not deleted user 141042

Use this tag when the code is a solution to a programming challenge. Always include a sufficient description of the problem to be solved - while a link to the challenge is welcome, the review request needs to be complete when the challenge site is unavailable.

7 votes
Accepted

Project Euler problem 44: sums and differences of pentagonal numbers

Some observations: To do integer division in Python 3, you should use the // operator. For example, you should prefer to do (x*(3*x-1))//2 over int(x*(3*x-1)/2); the latter expression can run into a …
jschnei's user avatar
  • 736
10 votes
Accepted

Finding circular primes

Some observations: I don't really understand the majority of names. What does f7 mean? What does the rwh in rwh_primes mean? Why is the lisp variable called lisp? What is the difference between coun …
jschnei's user avatar
  • 736
2 votes

KQuery SPOJ problem, using merge sort segment tree

Your biggest issue here is that you are building a new list for every single query. Each of these lists can have size up to \$N\$ (since the query could be over the entire universe), so building this …
jschnei's user avatar
  • 736