adventofcode2021/aoc1-1.py

def main():
    """ For each depth in the list, determine whether it's deeper than the previous depth.
        There is no previous depth for the first entry.
        Output the total number of times the depth increased.
    """
    with open("aoc1-1.txt", "r") as file:
        depths = file.readlines()
    depths = [int(el.strip()) for el in depths]
    prev = 999999999
    increases = []
    for depth in depths:
        increases.append(1 if depth > prev else 0)
        prev = depth
    print(sum(increases))
            

if __name__ == "__main__":
    main()