< Back to forum

Triwizard Contest

Cannot understand the approach made. tried doing _builtin_popcount(x), but was unsuccessful. would be great if u can help!

https://www.codechef.com/CDW12021/problems/PPPPPPP7

Asked by: moonshine.26.2001 on April 22, 2021, 7:23 p.m. Last updated on April 22, 2021, 7:23 p.m.


Enter your answer details below:


Preview

Enter your comment details below:

Preview




1 Answer(s)

avatar

__builtin_popcount(x) won't work for such large number. You should use __builtin_popcountll(x).

mahawarvishal10 last updated on April 23, 2021, 4:28 p.m. 0    Reply    Upvote   

Instruction to write good question
  1. 1. Write a title that summarizes the specific problem
  2. 2. Pretend you're talking to a busy colleague
  3. 3. Spelling, grammar and punctuation are important!

Bad: C# Math Confusion
Good: Why does using float instead of int give me different results when all of my inputs are integers?
Bad: [php] session doubt
Good: How can I redirect users to different pages based on session data in PHP?
Bad: android if else problems
Good: Why does str == "value" evaluate to false when str is set to "value"?

Refer to Stack Overflow guide on asking a good question.