Basic Tower Defence

You are playing a tower defense game. Let $K$ denote the number of towers you have and $P$ denote the power of each tower. Initially, $K = 1$ and $P = 1$. The game has $N$ waves of enemies. The $i$-th wave contains $A_i$ enemies, each with $H_i$ health, and all these $A_i$ enemies must be defeated in **at most** $S_i$ turns to beat the wave. Each wave proceeds under the following rules: - Ev