If you found something < K−1 then ...
LEAVE THE CONTEST
Was too late. Had already submitted A.
Absolutely made joke of the contest round. Consistent, all-embracing and comprehensive goof-ups in both the DIVs. DIV 1 apparently had it even worse. Astounded as to why all the problems in both the divs lacked clarity in the problem statement, incorrect testcases(Div 1), were worded obscurely, and were made excessively difficult with no normalization.
And weak main test. One of my friends managed to get Div1-A Accepted by using $$$O(n^4)$$$ brute force.
then we thought what is the importance of K-1 and why it's here
This is somehow related to my failure in the round, one more was the definition of diameter for a single node, for a single node whatever be the diameter we should not care, I made a hell of a lot of submissions assuming, for a single node any diameter is accepted! bad assumption!
how come you did a lot of submissions and you are still unrated :P ALTS everywhere :D
Haha, bitter truth!