day 13 python solution

2022-12-13 21:45:47 -08:00 · 2022-12-13 21:45:47 -08:00 · 96a5961ed4
parent 85e623a9db
commit 96a5961ed4
3 changed files with 291 additions and 0 deletions
--- a/day14/input
+++ b/day14/input
@ -0,0 +1,169 @@
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+536,172 -> 536,168 -> 536,172 -> 538,172 -> 538,164 -> 538,172 -> 540,172 -> 540,168 -> 540,172 -> 542,172 -> 542,163 -> 542,172 -> 544,172 -> 544,164 -> 544,172 -> 546,172 -> 546,171 -> 546,172 -> 548,172 -> 548,165 -> 548,172 -> 550,172 -> 550,170 -> 550,172 -> 552,172 -> 552,170 -> 552,172
+521,65 -> 521,67 -> 513,67 -> 513,72 -> 526,72 -> 526,67 -> 523,67 -> 523,65
+518,76 -> 518,77 -> 530,77 -> 530,76
+503,53 -> 503,50 -> 503,53 -> 505,53 -> 505,51 -> 505,53 -> 507,53 -> 507,52 -> 507,53 -> 509,53 -> 509,50 -> 509,53
+541,88 -> 545,88
+504,19 -> 504,23 -> 503,23 -> 503,31 -> 512,31 -> 512,23 -> 507,23 -> 507,19
+536,172 -> 536,168 -> 536,172 -> 538,172 -> 538,164 -> 538,172 -> 540,172 -> 540,168 -> 540,172 -> 542,172 -> 542,163 -> 542,172 -> 544,172 -> 544,164 -> 544,172 -> 546,172 -> 546,171 -> 546,172 -> 548,172 -> 548,165 -> 548,172 -> 550,172 -> 550,170 -> 550,172 -> 552,172 -> 552,170 -> 552,172
+555,122 -> 560,122
+521,65 -> 521,67 -> 513,67 -> 513,72 -> 526,72 -> 526,67 -> 523,67 -> 523,65
+527,147 -> 527,139 -> 527,147 -> 529,147 -> 529,142 -> 529,147 -> 531,147 -> 531,138 -> 531,147 -> 533,147 -> 533,137 -> 533,147 -> 535,147 -> 535,140 -> 535,147 -> 537,147 -> 537,146 -> 537,147 -> 539,147 -> 539,142 -> 539,147 -> 541,147 -> 541,140 -> 541,147
+532,86 -> 536,86
+539,150 -> 539,152 -> 534,152 -> 534,159 -> 544,159 -> 544,152 -> 543,152 -> 543,150
+536,172 -> 536,168 -> 536,172 -> 538,172 -> 538,164 -> 538,172 -> 540,172 -> 540,168 -> 540,172 -> 542,172 -> 542,163 -> 542,172 -> 544,172 -> 544,164 -> 544,172 -> 546,172 -> 546,171 -> 546,172 -> 548,172 -> 548,165 -> 548,172 -> 550,172 -> 550,170 -> 550,172 -> 552,172 -> 552,170 -> 552,172
+536,172 -> 536,168 -> 536,172 -> 538,172 -> 538,164 -> 538,172 -> 540,172 -> 540,168 -> 540,172 -> 542,172 -> 542,163 -> 542,172 -> 544,172 -> 544,164 -> 544,172 -> 546,172 -> 546,171 -> 546,172 -> 548,172 -> 548,165 -> 548,172 -> 550,172 -> 550,170 -> 550,172 -> 552,172 -> 552,170 -> 552,172
+539,150 -> 539,152 -> 534,152 -> 534,159 -> 544,159 -> 544,152 -> 543,152 -> 543,150
+550,113 -> 555,113
+554,116 -> 559,116
+521,65 -> 521,67 -> 513,67 -> 513,72 -> 526,72 -> 526,67 -> 523,67 -> 523,65
+527,147 -> 527,139 -> 527,147 -> 529,147 -> 529,142 -> 529,147 -> 531,147 -> 531,138 -> 531,147 -> 533,147 -> 533,137 -> 533,147 -> 535,147 -> 535,140 -> 535,147 -> 537,147 -> 537,146 -> 537,147 -> 539,147 -> 539,142 -> 539,147 -> 541,147 -> 541,140 -> 541,147
+514,60 -> 518,60
+539,105 -> 539,98 -> 539,105 -> 541,105 -> 541,100 -> 541,105 -> 543,105 -> 543,103 -> 543,105 -> 545,105 -> 545,101 -> 545,105 -> 547,105 -> 547,95 -> 547,105 -> 549,105 -> 549,104 -> 549,105 -> 551,105 -> 551,99 -> 551,105 -> 553,105 -> 553,97 -> 553,105 -> 555,105 -> 555,96 -> 555,105
+535,84 -> 539,84
+521,65 -> 521,67 -> 513,67 -> 513,72 -> 526,72 -> 526,67 -> 523,67 -> 523,65
+511,62 -> 515,62
+503,53 -> 503,50 -> 503,53 -> 505,53 -> 505,51 -> 505,53 -> 507,53 -> 507,52 -> 507,53 -> 509,53 -> 509,50 -> 509,53
+536,172 -> 536,168 -> 536,172 -> 538,172 -> 538,164 -> 538,172 -> 540,172 -> 540,168 -> 540,172 -> 542,172 -> 542,163 -> 542,172 -> 544,172 -> 544,164 -> 544,172 -> 546,172 -> 546,171 -> 546,172 -> 548,172 -> 548,165 -> 548,172 -> 550,172 -> 550,170 -> 550,172 -> 552,172 -> 552,170 -> 552,172
+539,105 -> 539,98 -> 539,105 -> 541,105 -> 541,100 -> 541,105 -> 543,105 -> 543,103 -> 543,105 -> 545,105 -> 545,101 -> 545,105 -> 547,105 -> 547,95 -> 547,105 -> 549,105 -> 549,104 -> 549,105 -> 551,105 -> 551,99 -> 551,105 -> 553,105 -> 553,97 -> 553,105 -> 555,105 -> 555,96 -> 555,105
+527,147 -> 527,139 -> 527,147 -> 529,147 -> 529,142 -> 529,147 -> 531,147 -> 531,138 -> 531,147 -> 533,147 -> 533,137 -> 533,147 -> 535,147 -> 535,140 -> 535,147 -> 537,147 -> 537,146 -> 537,147 -> 539,147 -> 539,142 -> 539,147 -> 541,147 -> 541,140 -> 541,147
+529,80 -> 533,80
+545,131 -> 549,131
+503,53 -> 503,50 -> 503,53 -> 505,53 -> 505,51 -> 505,53 -> 507,53 -> 507,52 -> 507,53 -> 509,53 -> 509,50 -> 509,53
+527,147 -> 527,139 -> 527,147 -> 529,147 -> 529,142 -> 529,147 -> 531,147 -> 531,138 -> 531,147 -> 533,147 -> 533,137 -> 533,147 -> 535,147 -> 535,140 -> 535,147 -> 537,147 -> 537,146 -> 537,147 -> 539,147 -> 539,142 -> 539,147 -> 541,147 -> 541,140 -> 541,147
+504,19 -> 504,23 -> 503,23 -> 503,31 -> 512,31 -> 512,23 -> 507,23 -> 507,19
+539,150 -> 539,152 -> 534,152 -> 534,159 -> 544,159 -> 544,152 -> 543,152 -> 543,150
+536,172 -> 536,168 -> 536,172 -> 538,172 -> 538,164 -> 538,172 -> 540,172 -> 540,168 -> 540,172 -> 542,172 -> 542,163 -> 542,172 -> 544,172 -> 544,164 -> 544,172 -> 546,172 -> 546,171 -> 546,172 -> 548,172 -> 548,165 -> 548,172 -> 550,172 -> 550,170 -> 550,172 -> 552,172 -> 552,170 -> 552,172
+554,110 -> 563,110
+539,105 -> 539,98 -> 539,105 -> 541,105 -> 541,100 -> 541,105 -> 543,105 -> 543,103 -> 543,105 -> 545,105 -> 545,101 -> 545,105 -> 547,105 -> 547,95 -> 547,105 -> 549,105 -> 549,104 -> 549,105 -> 551,105 -> 551,99 -> 551,105 -> 553,105 -> 553,97 -> 553,105 -> 555,105 -> 555,96 -> 555,105
+493,15 -> 493,16 -> 504,16 -> 504,15
+529,88 -> 533,88
+527,147 -> 527,139 -> 527,147 -> 529,147 -> 529,142 -> 529,147 -> 531,147 -> 531,138 -> 531,147 -> 533,147 -> 533,137 -> 533,147 -> 535,147 -> 535,140 -> 535,147 -> 537,147 -> 537,146 -> 537,147 -> 539,147 -> 539,142 -> 539,147 -> 541,147 -> 541,140 -> 541,147
+536,134 -> 540,134
+500,34 -> 500,37 -> 496,37 -> 496,40 -> 506,40 -> 506,37 -> 504,37 -> 504,34
+520,86 -> 524,86
--- a/day14/sample
+++ b/day14/sample
@ -0,0 +1,2 @@
+498,4 -> 498,6 -> 496,6
+503,4 -> 502,4 -> 502,9 -> 494,9
--- a/day14/sol.py
+++ b/day14/sol.py
@ -0,0 +1,120 @@
+
+source = (500,0)
+
+data = []
+xs = []
+ys = []
+for line in open("input"):
+    path = []
+    for point in line.replace("->", " ").split():
+        x, y = map(int, point.split(","))
+        path.append((x,y))
+        xs.append(x)
+        ys.append(y)
+    data.append(path)
+
+
+grid = []
+sand = {}
+
+X0 = min(xs)
+X1 = max(xs) + 1
+Y0 = 0
+Y1 = max(ys) + 1
+
+# part 2:
+X0 -= 1000
+X1 += 1000
+Y1 += 1
+
+DX = X1 - X0
+DY = Y1 - Y0
+
+grid = [['.']*DX for _ in range(DY)]
+
+def put(x,y,c):
+    if c == 'o':
+        sand[(x,y)] = c
+    if X0 <= x < X1:
+        if Y0 <= y < Y1:
+            grid[y-Y0][x-X0] = c
+            return
+    print(x,y,"out of range")
+
+def get(x,y):
+    if (x,y) in sand:
+        return 'o'
+    if X0 <= x < X1:
+        if Y0 <= y < Y1:
+            return grid[y-Y0][x-X0]
+    return '#'
+
+def draw(path):
+    for p1, p2 in zip(path, path[1:]):
+        #print(p1, p2)
+        if p1[0] == p2[0]:
+            x = p1[0]
+            y0, y1 = p1[1], p2[1]
+            if y0 > y1:
+                y0, y1 = y1, y0
+            for y in range(y0, y1+1):
+                put(x,y, '#')
+        else:
+            y = p1[1]
+            x0, x1 = p1[0], p2[0]
+            if x0 > x1:
+                x0, x1 = x1, x0
+            for x in range(x0, x1+1):
+                put(x,y, '#')
+
+for path in data:
+    #print(path)
+    draw(path)
+
+
+def show():
+    for r in grid: print("".join(r))
+
+#show()
+
+def drip(p):
+    x,y=p
+    while True:
+        c = get(x,y+1)
+        if c == '?':
+            return 'bye'
+        if c == '.':
+            y += 1
+            continue
+        # try left
+        c = get(x-1,y+1)
+        if c == '?':
+            return 'bye'
+        if c == '.':
+            x,y = x-1,y+1
+            continue
+        # try right
+        c = get(x+1, y+1)
+        if c == '?':
+            return 'bye'
+        if c == '.':
+            x,y = x+1, y+1
+            continue
+        # blocked!
+        put(x,y,'o')
+        #print(x,y)
+        return 'done'
+
+#i = 0
+#for _ in range(100000):
+#    if drip(source) == 'bye':
+#        break
+#    i+= 1
+
+i = 0
+while source not in sand:
+    drip(source)
+    i += 1
+
+#show()
+print(i)