Cities Colours

You once again find yourself exploring the beautiful region of Chefland. There are $N$ cities in a row. Each city has a color preference of $C_i$ and has a wealth of $W_i$. Initially, you are at city $1$ with a color of $0$, and you have $0$ coins. For simplicity's sake, it is guaranteed that $C_1=W_1=0$. Then, you may perform any of the following operations: - Set your color to any integer you