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day 9

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Aéna Aria 2025-12-09 08:42:13 +01:00
parent b16a7975bc
commit 8d7b9d1971
3 changed files with 565 additions and 0 deletions
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14
day9/1.py Normal file
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with open(r'day9/input.txt', 'r') as input:
lines = list(map(lambda x: list(map(lambda y: int(y),x.split(','))),input.read().split('\n')[:-1]))
def surface(a,b):
return (abs(a[0]-b[0])+1)*(abs(a[1]-b[1])+1)
best = surface(lines[0],lines[1])
for i in range(len(lines)):
for j in range(i):
best = max(best,surface(lines[i],lines[j]))
print(best)

55
day9/2.py Normal file
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with open(r'day9/input.txt', 'r') as input:
lines = list(map(lambda x: list(map(lambda y: int(y),x.split(','))),input.read().split('\n')[:-1]))
def surface(a,b):
return (abs(a[0]-b[0])+1)*(abs(a[1]-b[1])+1)
inner = set()
for i in range(len(lines)):
j = (i+1)%len(lines)
if lines[i][0] == lines[j][0]:
sign = 1 if lines[i][1] <= lines[j][1] else -1
for x in range(lines[i][1],lines[j][1],sign):
inner.add((lines[i][0],x))
else:
sign = 1 if lines[i][0] <= lines[j][0] else -1
for x in range(lines[i][0],lines[j][0],sign):
inner.add((x,lines[i][1]))
if lines[0][0] == lines[1][0]:
init = (lines[0][0]-1,lines[0][1]+1)
else:
init = (lines[0][0]+1,lines[0][1]+1)
print(init)
L=[init]
neigh = [[-1,0],[-1,-1],[0,-1],[1,0],[0,1],[1,1],[-1,1],[1,-1]]
while len(L):
sommet = L.pop(0)
if sommet not in inner:
inner.add(sommet)
for nei in neigh:
new = (sommet[0]+nei[0],sommet[1]+nei[1])
if new not in inner and new not in L:
L.append(new)
print("init done")
def is_inside(a,b):
for i in range(min(a[0],b[0]),max(a[0],b[0])+1):
for j in range(min(a[1],b[1]),max(a[1],b[1])+1):
if (i,j) not in inner:
return False
return True
best = surface(lines[0],lines[1])
for i in range(len(lines)):
for j in range(i):
if is_inside(lines[i],lines[j]):
best = max(best,surface(lines[i],lines[j]))
print(best)

496
day9/input.txt Normal file
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