Part 1 Python
New to coding and behind in the calendar but this one looked easy overall.
with open ('input.txt') as inp:
EW = 0
NS = 0
dir = 90
for line in inp:
action = line[0]
num = int(line[1:])
if action == "F" and dir == 90 or action == "E":
EW += num
elif action == "F" and dir == 180 or action == "S":
NS -= num
elif action == "F" and dir == 270 or action == "W":
EW -= num
elif action == "F" and dir == 0 or action == "N":
NS += num
elif action == "L":
dir -= num
if dir == 360 or dir == -360:
dir = 0
if dir == -90:
dir = 270
if dir == -180 or dir == 540:
dir = 180
if dir == -270 or dir == 450:
dir = 90
elif action == "R":
dir += num
if dir == 360 or dir == -360:
dir = 0
if dir == -90:
dir = 270
if dir == -180 or dir == 540:
dir = 180
if dir == -270 or dir == 450:
dir = 90
print(f"Manhatten Distance: {abs(NS)+ abs(EW)}")
not sure how to get syntax highlighting to show here
Part 2
with open ('input.txt') as inp:
ship_ew = 0
ship_ns = 0
way_ew = 10
way_ns = 1
for line in inp:
action = line[0]
num = int(line[1:])
if action == "F":
ship_ns += (way_ns * num)
ship_ew += (way_ew * num)
elif action == "N":
way_ns += num
elif action == "S":
way_ns -= num
elif action == "E":
way_ew += num
elif action == "W":
way_ew -= num
elif action == "L" and num == 90 or action == "R" and num == 270:
way_ns, way_ew = way_ew, -way_ns
elif action == "L" and num == 270 or action == "R" and num ==90:
way_ns, way_ew = -way_ew, way_ns
elif action == "L" and num == 180 or action == "R" and num == 180:
way_ns = -way_ns
way_ew = -way_ew
print(f"Manhattan Distance: {abs(ship_ns)+ abs(ship_ew)}")
Nice! I like how you folded the absolute directions and the forward commands into one action with checks on the current direction. Look into the % (modulo) operator for handling the circular arithmetic around the rotation additions - in short (dir + num) % 360 for right turns and (dir + 360 - num) % 360 for left.
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Part 1 Python
New to coding and behind in the calendar but this one looked easy overall.
not sure how to get syntax highlighting to show here
Part 2
I need to refactor this and function it out
Nice! I like how you folded the absolute directions and the forward commands into one action with checks on the current direction. Look into the
%(modulo) operator for handling the circular arithmetic around the rotation additions - in short(dir + num) % 360for right turns and(dir + 360 - num) % 360for left.