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34 lines
748 B
34 lines
748 B
lines = []
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for l in open("input.txt", 'r').read().splitlines():
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p = l.split(" -> ")
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q = []
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q.append(p[0].split(","))
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q.append(p[1].split(","))
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lines.append([[int(q[0][0]),int(q[0][1])],[int(q[1][0]), int(q[1][1])]])
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grid = [[0 for i in range(1000)] for j in range(1000)]
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overlaps = 0
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for l in lines:
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xDir = 0
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yDir = 0
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if l[0][0] > l[1][0]:
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xDir = -1
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if l[0][0] < l[1][0]:
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xDir = 1
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if l[0][1] > l[1][1]:
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yDir = -1
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if l[0][1] < l[1][1]:
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yDir = 1
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if xDir == 0:
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for i in range(l[0][1],l[1][1]+yDir,yDir):
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grid[l[0][0]][i] += 1
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if grid[l[0][0]][i] == 2:
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overlaps += 1
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if yDir == 0:
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for i in range(l[0][0],l[1][0]+xDir,xDir):
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grid[i][l[0][1]] += 1
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if grid[i][l[0][1]] == 2:
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overlaps += 1
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print(overlaps)
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