Spicy Food

The facts are:

1. You've just finished dinner.
2. You love spicy food but your friend hates it.

Given your friend's unfortunate taste preferences, you decide to split the bill only for non-spicy items. You will pay in full for the spicy dishes.

Given two ordered arrays, one classifying the dishes as spicy vs. non-spicy and the other listing their prices, write a function that outputs an array where the first element is how much you pay and the second element is how much your friend pays.

billSplit(["S", "N", "S", "S"], [13, 18, 15, 4]) ➞ [41, 9]

// Since:
// You pay: [13, 9, 15, 4] = 41
// Friend pays: [0, 9, 0, 0] = 9

Examples

billSplit(["N", "S", "N"], [10, 10, 20]) ➞ [25, 15]
// You pay for half of both "N" dishes (5 + 10) and entirely pay for the "S" dish (10).

billSplit(["N", "N"], [10, 10]) ➞ [10, 10]

billSplit(["S", "N"], [41, 10]) ➞ [46, 5]

Notes

• The dishes are in the same order for both input arrays.
• Remember to output an array in this order: [your payment, friend's payment]
• The array will contain at least one non-spicy dish N (you're not going to let your poor friend go hungry, are you?).
• Express both payments as integers.