Problem : https://mirror.codeforces.com/contest/1538/problem/D
Solution Link : https://mirror.codeforces.com/contest/1538/submission/119077891
Can anyone explain why I am getting TLE on test 6 for this solution?
Problem : https://mirror.codeforces.com/contest/1538/problem/D
Solution Link : https://mirror.codeforces.com/contest/1538/submission/119077891
Can anyone explain why I am getting TLE on test 6 for this solution?
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I get TLE like you too. But after I changed using long long to int then I got AC.
This problem is so weird that you got AC when you use int but get TLE when you use long long
yeah I got AC too. But why long long is leading to TLE?
The time to process with long long is a little bit longer than that of int. So using int can speed up your program for a little bit and got AC in cases that your program execution time exceed the time limit with a very small amount of time.
Yeah, I remember one of the dp problems in CSES having the same problem, took me a long time to figure out what went wrong.
kshitijanand36 ..
I had the same problem. I fixed it by simply writing prime factorization (I counted all prime numbers from $$$2$$$ to $$$ \sqrt {10 ^ 9} $$$))
TL6: https://mirror.codeforces.com/contest/1538/submission/119027345
AC: https://mirror.codeforces.com/contest/1538/submission/119038949
i don't know why many people didn't get TLE with that solution. but as i know T*sqrt(1e9)*2 = 4e8 = 4seconds is TLE. at least, that's the reason for your TLE.
To be safe, you need to precalculate all prime numbers from 2 to sqrt(1e9) and only check thoses numbers.
Yes, I did the same and it worked