The code to perform a binary search is below. Match the variable name with what it holds. first = 0
last = len(data) - 1
done = False
numberPasses = 0 while first <= last and not done:
middle = (first + last) // 2
numberPasses =
numberPasses + 1
if data[middle] == 10:
done = True
else:
if data[middle] > 10:
last = middle - 1
else:
first = middle + 1

(This is a matching thing, the last, middle, and first will be matched with the options below:)

-the index of the center item in the list being considered
-the index of the rightmost member of the list being considered
-the index of the leftmost member of the list being considered