Problem Info
B:philip and trains:Problem - B - Codeforces
My Work
submission link:Submission #129740756 - Codeforces
my approach: I used bfs approach and went into the reference frame of trains so instead of moving trains to left by 2 units i move philips by 2 units right.But i get wrong answer on test case 4. I know how to stress test,but I don’t know how I would be generating test cases here.Can someone please tell where am I going wrong?