# Returns the number of elements in the given list whose values
# are between the given min and max, inclusive.
def count_between(list, min, max):
    occurrences = 0
    for n in list:
        if min <= n <= max:
            occurrences += 1
    return occurrences

# Returns the index of the last occurrence of the given target
# value in the given list, or raises a ValueError if not found.
def last_index(list, target):
    for i in range(len(list) - 1, -1, -1):
        if list[i] == target:
            return i
    raise ValueError(str(target) + " is not in list")

# Returns a list of the unique words in the given file,
# excluding any duplicate words.
def unique_words(filename):
    with open(filename) as file:
        words = []
        for word in file.read().split():
            if word not in words:
                words.append(word)
        return words

# Replaces the first occurrence of the given target value
# with the given replacement value in the given list.
def replace(list, target, replacement):
    if target in list:
        index = list.index(target)
        list[index] = replacement

# Replaces all occurrences of the given target value with the
# given replacement value in the given list.
def replace_all(list, target, replacement):
    for i in range(len(list)):
        if list[i] == target:
            list[i] = replacement

# Swaps the list elements at indexes i and j.
def swap(list, i, j):
    temp = list[i]
    list[i] = list[j]
    list[j] = temp

# Reverses the order of the elements in the given list.
def reverse(list):
    for i in range(len(list) // 2):
        # swap list[i] with list[j]
        j = len(list) - i - 1
        temp = list[i]
        list[i] = list[j]
        list[j] = temp


# Moves each element left by 1 index in the given list,
# wrapping the front element to the back of the list.
def rotate_left(data):
    first = data[0]
    for i in range(len(data) - 1)):
        data[i] = data[i + 1]
    data[-1] = first

# Moves each element right by 1 index in the given list,
# wrapping the last element to the front of the list.
def rotate_right(data):
    last = data[-1]
    for i in range(len(data) - 1, 0, -1):
        data[i] = data[i - 1]
    data[0] = last

def main():
    numbers = [8, 7, 19, 2, 82, 8, 7, 25, 8]
    print(count_between(numbers, 1, 10))
    print(last_index(numbers, 7))
    replace_all(numbers, 8, -1)
    print(numbers)
    reverse(numbers)
    print(numbers)

main()