Instructions

Your friend Li Mei runs a juice bar where she sells delicious mixed fruit juices. You are a frequent customer in her shop and realized you could make your friend's life easier. You decide to use your coding skills to help Li Mei with her job.

1. Determine how long it takes to make a juice

Li Mei likes to tell her customers in advance how long they have to wait for a juice from the menu that they ordered. She has a hard time remembering the exact numbers because the time it takes to mix the juices varies:

Write a function time_to_make_juice that takes an ID for a juice, as a 32-bit number, and returns the time it takes to make the juice, also as a 32-bit number.

2. Determine how long it takes to make all ordered juices

Li Mei needs to periodically replenish her supplies, so she needs to know in advance how much time she will take to prepare all the currently available orders.

To help your friend, write a function time_to_prepare that takes an array of IDs for each ordered juice and the number of juices in the array. This function should return the total time it will take to prepare all the drinks in the array.

You can consider that each ID, the number of IDs in the array and the return value are all 32-bit numbers. The result will always fit in a 32-bit number.

3. Replenish the lime wedge supply

A lot of Li Mei's creations include lime wedges, either as an ingredient or as part of the decoration. So when she starts her shift in the morning she needs to make sure the bin of lime wedges is full for the day ahead.

Implement the function limes_to_cut which takes the number of lime wedges Li Mei needs to cut, an array representing the supply of whole limes she has at hand, and the number of limes in the array.

Each lime is represented in the array by a character with its size. Different sizes of lime can give Li Mei a different number of wedges:

Li Mei always cuts the limes in the order in which they appear in the array, starting with the first item. She keeps going until she reached the number of wedges that she needs or until she runs out of limes.

Li Mei would like to know in advance how many limes she needs to cut.

You can consider that the number of wedges needed, the number of limes in the array and the return value are all 32-bit numbers. The result will always fit in a 32-bit number.

4. Finish up the shift

Li Mei always works until 3pm. Then her employee Dmitry takes over. There are often drinks that have been ordered but are not prepared yet when Li Mei's shift ends. Dmitry will then prepare the remaining juices.

To make the hand-over easier, implement a function remaining_orders which takes:

• The number of minutes left in Li Mei's shift.
• An array of IDs for each juice that has been ordered but not prepared yet.

The function should return the number of orders that Li Mei prepared before the end of her workday.

The time left in the shift will always be greater than 0. The array of juices to prepare will never be empty and the shift will always end before reaching the end of the array. Furthermore, the orders are prepared in the order in which they appear in the array. If Li Mei starts to mix a certain juice, she will always finish it even if she has to work a bit longer.

You can consider that the number of minutes left, each ID in the array and the return value are all 32-bit numbers. The result will always fit in a 32-bit number.