Comments
-8

please put your logic also, might help someone
0

I solved B today. Couldn't arrive at a solution but thought of attempting a fluke and it worked. LOL.
0

What problems should I practice to solve D easily ? Any specific concepts ?
0

Same. Did it with BS
0

Did C with binary search. 87141880
0

Hey mind explaining the logic ?
0

I got TLE for that.
0

In problem D, what is the role of x in res-=cur-x. For the first iteration of the loop we check for strings that end with AAB or BBA. And for the second iteration we check for strings that start with ABB or BBA. Why subtract x=1 from res ? Got it.