First thing I really appreciate he(beethoven97) makes the tests stronger and rearrange the standing correctly.
I just wonder how do he do it?
A picture from Educational Codeforces Round 130 (Rated for Div. 2) that showing the number of hacks he made until the time I wrote this blog:
The python3 solutions without fast input were basically ... hacked until they TLE, he ran the same test over and over again on the same solution (since runtime is 1900+ ms and time limit is 2000 ms) it may sometimes randomly TLE
That should explain why so many hacks ?
May be. But how was he hacking codes during all duration?
I think he might have used a script or something to run some generated tests against borderline TL solutions
Yup, I think the same ✓