QN$\mathrm{.}5.$ USING CONDITIONAL STATEMENTS, WRITE THE C PROGRAMMING CODE FOR THE FOLLOWING:

a$.$ A parking lot charges $$2$ for the first hour or part thereof and $$1\mathrm{.}50$ for each additional hour or part thereof. Ask the user for the number of hours parked and calculate the total charge.

b$.$ A library charges a fine for books returned late. For the first $5$ days, the fine is $$0\mathrm{.}50$ per day, for $6$ to $10$ days the fine is $$1$ per day, and above $10$ days the fine is $$2$ per day. Ask the user for the number of days the book is late and calculate the fine.