above is the problem
here i am not able to think what to do other than finding primes in the given range
Please help
Thanks
After finding no of primes copy paste soln of CodeChef: Practical coding for everyone . Set Q=No of Primes and N=No of non Primes.
Summary
You can read editorial of that Kgp regional problem.
Thanks man.
I got a idea ,to go further.
Did you also solve problem CodeChef: Practical coding for everyone .
from same contest ,I am just able to think about brute force solution .how can optimise ?
Thanks in advance
Can someone help me understand what’s wrong with this submission of mine?
https://www.codechef.com/viewsolution/29236202
Question link : CodeChef: Practical coding for everyone
Link to a similar solution that got AC: CodeChef: Practical coding for everyone
Someone told me that same problem exists on codeforces but Idk exact link.
As far as what we did my teammate just wrote a backtracking soln and test cases were weak af to get AC.
Hey, can you explain, how the expected value is
N + Q - N/(Q+1)