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Copy pathday5.py
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day5.py
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def part1():
matrix = list()
for i in range(1000):
row = list()
for i2 in range(1000):
row.append(0)
matrix.append(row)
with open('resources/input5.txt') as f:
lines = f.readlines()
for line in lines:
pairs = line.split(" -> ")
first = True
start = None
end = None
for pair in pairs:
values = pair.split(",")
x = int(values[1].strip())
y = int(values[0].strip())
int_pair = (x, y)
if first:
start = int_pair
first = False
else:
end = int_pair
if use_line(start, end):
if start[0] == end[0]:
low_high = get_low_and_high(start[1], end[1])
for i in range(low_high[0], low_high[1] + 1):
matrix[start[0]][i] += 1
else:
low_high = get_low_and_high(start[0], end[0])
for i in range(low_high[0], low_high[1] + 1):
matrix[i][start[1]] += 1
overlap_line_count = 0
for row in matrix:
for val in row:
if val > 1:
overlap_line_count += 1
print(overlap_line_count)
def use_line(start, end):
if start[0] == end[0]:
return True
if start[1] == end[1]:
return True
return False
def get_low_and_high(val1, val2):
low = val1
high = val1
if val2 > val1:
high = val2
else:
low = val2
return low, high
def part2():
matrix = list()
for i in range(1000):
row = list()
for i2 in range(1000):
row.append(0)
matrix.append(row)
with open('resources/input5.txt') as f:
lines = f.readlines()
for line in lines:
pairs = line.split(" -> ")
first = True
start = None
end = None
for pair in pairs:
values = pair.split(",")
x = int(values[1].strip())
y = int(values[0].strip())
int_pair = (x, y)
if first:
start = int_pair
first = False
else:
end = int_pair
if use_line2(start, end):
if start[0] == end[0]:
low_high = get_low_and_high(start[1], end[1])
for i in range(low_high[0], low_high[1] + 1):
matrix[start[0]][i] += 1
else:
if start[1] == end[1]:
low_high = get_low_and_high(start[0], end[0])
for i in range(low_high[0], low_high[1] + 1):
matrix[i][start[1]] += 1
else:
x_mod = 1
if end[0] < start[0]:
x_mod = -1
y_mod = 1
if end[1] < start[1]:
y_mod = -1
x_val = start[0]
y_val = start[1]
low_high1 = get_low_and_high(start[0], end[0])
for i in range(0, low_high1[1] - low_high1[0] + 1):
matrix[x_val][y_val] += 1
x_val += x_mod
y_val += y_mod
overlap_line_count = 0
for row in matrix:
for val in row:
if val > 1:
overlap_line_count += 1
print(overlap_line_count)
def use_line2(start, end):
if start[0] == end[0]:
return True
if start[1] == end[1]:
return True
if abs(start[0] - end[0]) == abs(start[1] - end[1]):
return True
return False
if __name__ == '__main__':
part1()
part2()