Advent of Code 2021 Python Solution: Day 2

Again, I will be using my helper function created on day 1 and the input data will be in same format.

Part 1

hs = 0
vs = 0

for d in data:
    k,v = d.split()

    if k =="forward":
        hs+=int(v)
    elif k == "down":
        vs+=int(v)
    elif k=="up":
        vs-=int(v)

print(hs*vs)

Answer of test data will be 150 and of real input will be 1947824, we just have to give data1 instead of data in loop.

Part 2

hs = 0
vs = 0
aim = 0

for d in data1:
    k,v = d.split()
    v = int(v)

    if k =="forward":
        hs+=v
        vs+=aim*v
    elif k == "down":
        aim+=v
#         vs+=v
    elif k=="up":
        aim-=v
#         vs-=v

print(hs*vs)

The output of above code will be 1813062561.

All of my codes are available in GitHub as Jupyter Notebook.

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