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2024(4): getting there, but not yet

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Kees van Kempen
2024-12-18 23:53:19 +01:00
parent a9d85adf00
commit 04c1a5259a
1 changed files with 23 additions and 8 deletions
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31
2024/4/puzzle1.py
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@ -1,3 +1,5 @@
import itertools
def scan_line(line): def scan_line(line):
to_find = "XMAS" to_find = "XMAS"
@ -5,9 +7,19 @@ def scan_line(line):
return line.count(to_find) return line.count(to_find)
def transpose(list_2d): def transpose(list_2d):
return list(zip(*list_2d)) #return list(zip(*list_2d))
#return list(map(list, zip(*list_2d)))
#return list(map(list, itertools.zip_longest(*list_2d, fillvalue=None)))
outlist = []
for j in range(len(list_2d[0])):
outlist.append([])
for i in range(len(list_2d)):
outlist[j].append(list_2d[i][j])
outlist[j] = "".join(outlist[j])
return outlist
def rotate(list_2d): def rotate(list_2d):
#print(list_2d)
x_max, y_max = len(list_2d), len(list_2d[0]) x_max, y_max = len(list_2d), len(list_2d[0])
diagonal_list = [] diagonal_list = []
@ -16,21 +28,22 @@ def rotate(list_2d):
substring = "" substring = ""
x = i x = i
y = 0 y = 0
#while x < x_max and y < y_max: while x < x_max and y < y_max:
# TODO: Snapperniksvan -- Kees #print(x, x_max, y, y_max)
while x < x_max and y < len(list_2d[x]):
print(x, x_max, y, y_max)
substring += list_2d[x][y] substring += list_2d[x][y]
x += 1 x += 1
y += 1 y += 1
diagonal_list.append(substring) diagonal_list.append(substring)
# Reverse
diagonal_list = diagonal_list[::-1]
# Diagonals starting from (0,1), for the first column. # Diagonals starting from (0,1), for the first column.
for j in range(1, y_max): for j in range(1, y_max):
substring = "" substring = ""
x = 0 x = 0
y = j y = j
while x < x_max and y < y_max: while x < x_max and y < len(list_2d[x]):
substring += list_2d[x][y] substring += list_2d[x][y]
x += 1 x += 1
y += 1 y += 1
@ -42,7 +55,8 @@ if __name__ == "__main__":
result = 0 result = 0
with open("input", "r") as fp: with open("input", "r") as fp:
full_string = fp.read().split("\n") # Skip last line as it is empty
full_string = fp.read().split("\n")[:-1]
for line in full_string: for line in full_string:
result += scan_line(line) result += scan_line(line)
result += scan_line(line[::-1]) result += scan_line(line[::-1])
@ -54,7 +68,8 @@ if __name__ == "__main__":
for line in full_string: for line in full_string:
result += scan_line(line) result += scan_line(line)
result += scan_line(line[::-1]) result += scan_line(line[::-1])
for line in transpose(full_string): print(result)
for line in rotate(transpose(full_string)):
result += scan_line(line) result += scan_line(line)
result += scan_line(line[::-1]) result += scan_line(line[::-1])