summaryrefslogtreecommitdiff
path: root/2_2021.py
blob: 1fcb2a86ed06d96dd87daa6ccae69863939f8c5b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
import sys

data = sys.argv[1] if len(sys.argv) > 1 else "../day2data.txt"
fwd1 = 0
depth1 = 0
fwd2 = 0
depth2 = 0
aim = 0

for line in open(data):
    cmd, amt = line.split()
    amt = int(amt)
    if cmd == "forward":
        fwd1 += amt
        fwd2 += amt
        depth2 += amt * aim
    elif cmd == "up":
        depth1 -= amt
        aim -= amt
    else:
        assert cmd == "down"
        depth1 += amt
        aim += amt

print(fwd1 * depth1)
print(fwd2 * depth2)