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finished day 15

main
Luna Lailatova 2 years ago
parent
eca7cde10a
commit
1fa310d466
4 changed files with 181 additions and 2 deletions
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  1. 61
      day15-1.py
  2. 79
      day15-2.py
  3. 16
      in.txt
  4. 27
      input15.txt

61
day15-1.py
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beacons = []
sensors = []
lineY = 2000000
vectors = []
def loop():
for j in range(len(vectors)):
for i in range(len(vectors)):
if j != i:
if vectors[j][0] in range (vectors[i][0], vectors[i][1]) or vectors[i][0] in range (vectors[j][0], vectors[j][1]):
tempSt = min(vectors[j][0],vectors[i][0])
tempEn = max(vectors[j][1],vectors[i][1])
vectors.append((tempSt, tempEn))
vectors.pop(max(i, j))
vectors.pop(min(i, j))
return False
return True
with open('input15.txt','r') as f:
inp = f.read().splitlines(keepends=False)
for line in inp:
tempA, tempB = line.split(': closest beacon is at x=')
tempA = tempA.replace('Sensor at x=', '')
tempA = tempA.split(', y=')
sensors.append(tuple(map(int, tempA)))
tempB = tempB.split(', y=')
beacons.append(tuple(map(int, tempB)))
for i in range(len(sensors)):
print('checking sensor', i, 'out of', len(sensors) - 1)
(sensX, sensY) = sensors[i]
(beacX, beacY) = beacons[i]
distance = (max(sensX, beacX) - min(sensX, beacX)) + (max(sensY, beacY) - min(sensY, beacY))
if sensY <= lineY and (sensY + distance) >= lineY:
modifier = distance - (lineY - sensY)
vectors.append((sensX - modifier, sensX + modifier))
elif sensY >= lineY and (sensY - distance) <= lineY:
modifier = distance - (sensY - lineY)
vectors.append((sensX - modifier, sensX + modifier))
done = False
tempA = []
while not done:
done = loop()
vectors = sorted(vectors)
CoveredPoints = vectors[-1][1] - vectors[0][0] + 1
for i in range(len(vectors) - 1):
if vectors[i + 1][0] != vectors[i][1]:
CoveredPoints -= (vectors[i + 1][0] - vectors[i][1] - 1)
for beacon in beacons:
if beacon[1] == lineY and beacon not in tempA:
tempA.append(beacon)
CoveredPoints -= 1
print(CoveredPoints)

79
day15-2.py
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beacons = []
sensors = []
CoveredPoints = {}
maxcoord = 4000000
def loop(vectors):
for j in range(len(vectors)):
for i in range(len(vectors)):
if j != i:
if vectors[j][0] in range (vectors[i][0], vectors[i][1]) or vectors[i][0] in range (vectors[j][0], vectors[j][1]):
tempSt = min(vectors[j][0],vectors[i][0])
tempEn = max(vectors[j][1],vectors[i][1])
vectors.append((tempSt, tempEn))
vectors.pop(max(i, j))
vectors.pop(min(i, j))
return False, vectors
return True, vectors
def loop2(vectors):
if len(vectors) > 2:
for i in range(len(vectors) - 1):
if vectors[i][1] == vectors[i+1][0] or vectors[i][1] + 1== vectors[i+1][0]:
vectors.append((vectors[i][0], vectors[i+1][1]))
vectors.pop(i+1)
vectors.pop(i)
vectors = sorted(vectors)
return False, vectors
elif len(vectors) == 2:
if vectors[0][1] == vectors[1][0] or vectors[0][1] + 1== vectors[1][0]:
vectors = [(vectors[0][0], vectors[1][1])]
return True, vectors
return True, vectors
with open('input15.txt','r') as f:
inp = f.read().splitlines(keepends=False)
for line in inp:
tempA, tempB = line.split(': closest beacon is at x=')
tempA = tempA.replace('Sensor at x=', '')
tempA = tempA.split(', y=')
sensors.append(tuple(map(int, tempA)))
tempB = tempB.split(', y=')
beacons.append(tuple(map(int, tempB)))
for i in range(len(sensors)):
print('checking sensor', i, 'out of', len(sensors) - 1)
(sensX, sensY) = sensors[i]
(beacX, beacY) = beacons[i]
distance = (max(sensX, beacX) - min(sensX, beacX)) + (max(sensY, beacY) - min(sensY, beacY))
for j in range(distance + 1):
CoveredPoints.setdefault((sensY-j), [])
CoveredPoints.setdefault((sensY+j), [])
CoveredPoints[sensY-j].append((sensX - (distance - j), sensX + (distance - j)))
CoveredPoints[sensY+j].append((sensX - (distance - j), sensX + (distance - j)))
tempA = []
for vc in CoveredPoints:
done = False
vectors = CoveredPoints[vc].copy()
while not done:
done, vectors = loop(vectors)
done = False
vectors = sorted(vectors)
while not done:
done, vectors = loop2(vectors)
CoveredPoints[vc] = vectors
for i in range(maxcoord + 1):
line = CoveredPoints[i]
if len(line) > 1:
coordX = line[0][1] + 1
coordY = i
frequency = coordX * 4000000 + coordY
print('Beacon found y =',coordY,'x =',coordX,'frequency =', frequency)

16
in.txt
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498,4 -> 498,6 -> 496,6 Sensor at x=2, y=18: closest beacon is at x=-2, y=15
503,4 -> 502,4 -> 502,9 -> 494,9 Sensor at x=9, y=16: closest beacon is at x=10, y=16
Sensor at x=13, y=2: closest beacon is at x=15, y=3
Sensor at x=12, y=14: closest beacon is at x=10, y=16
Sensor at x=10, y=20: closest beacon is at x=10, y=16
Sensor at x=14, y=17: closest beacon is at x=10, y=16
Sensor at x=8, y=7: closest beacon is at x=2, y=10
Sensor at x=2, y=0: closest beacon is at x=2, y=10
Sensor at x=0, y=11: closest beacon is at x=2, y=10
Sensor at x=20, y=14: closest beacon is at x=25, y=17
Sensor at x=17, y=20: closest beacon is at x=21, y=22
Sensor at x=16, y=7: closest beacon is at x=15, y=3
Sensor at x=14, y=3: closest beacon is at x=15, y=3
Sensor at x=20, y=1: closest beacon is at x=15, y=3

27
input15.txt
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Sensor at x=2288642, y=2282562: closest beacon is at x=1581951, y=2271709
Sensor at x=2215505, y=2975419: closest beacon is at x=2229474, y=3709584
Sensor at x=275497, y=3166843: closest beacon is at x=-626874, y=3143870
Sensor at x=1189444, y=2115305: closest beacon is at x=1581951, y=2271709
Sensor at x=172215, y=2327851: closest beacon is at x=-101830, y=2000000
Sensor at x=3953907, y=1957660: closest beacon is at x=2882446, y=1934422
Sensor at x=685737, y=2465261: closest beacon is at x=1581951, y=2271709
Sensor at x=1458348, y=2739442: closest beacon is at x=1581951, y=2271709
Sensor at x=3742876, y=2811554: closest beacon is at x=3133845, y=3162635
Sensor at x=437819, y=638526: closest beacon is at x=-101830, y=2000000
Sensor at x=2537979, y=1762726: closest beacon is at x=2882446, y=1934422
Sensor at x=1368739, y=2222863: closest beacon is at x=1581951, y=2271709
Sensor at x=2743572, y=3976937: closest beacon is at x=2229474, y=3709584
Sensor at x=2180640, y=105414: closest beacon is at x=3011118, y=-101788
Sensor at x=3845753, y=474814: closest beacon is at x=3011118, y=-101788
Sensor at x=2493694, y=3828087: closest beacon is at x=2229474, y=3709584
Sensor at x=2786014, y=3388077: closest beacon is at x=3133845, y=3162635
Sensor at x=3593418, y=3761871: closest beacon is at x=3133845, y=3162635
Sensor at x=856288, y=3880566: closest beacon is at x=2229474, y=3709584
Sensor at x=1757086, y=2518373: closest beacon is at x=1581951, y=2271709
Sensor at x=2853518, y=2939097: closest beacon is at x=3133845, y=3162635
Sensor at x=1682023, y=1449902: closest beacon is at x=1581951, y=2271709
Sensor at x=3360575, y=1739100: closest beacon is at x=2882446, y=1934422
Sensor at x=2904259, y=1465606: closest beacon is at x=2882446, y=1934422
Sensor at x=3078500, y=3564862: closest beacon is at x=3133845, y=3162635
Sensor at x=2835288, y=1011055: closest beacon is at x=2882446, y=1934422
Sensor at x=2998762, y=2414323: closest beacon is at x=2882446, y=1934422
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