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https://github.com/peter-tanner/advent-of-code-2020.git
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update day 11 soln to remove unneded crud
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115
11/a.py
115
11/a.py
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@ -15,13 +15,9 @@ def simulate(mat): # Part A.
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for j in jdom:
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adjrows.pop(0)
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adjrows.append(mat[j+1]+['.']) if j+1 in jdom else adjrows.append([ '.' for x in idom ]+['.'])
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# print(adjrows)
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for i in idom:
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cell = mat[j][i]
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# print(i,j, cell)
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if cell == "#":
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# print(adj(adjrows))
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# print( [[ x[i] for i in range(i-1,i+2) ] for x in adjrows ] )
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adjm = adj(adjrows, i).count('#')-1
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if adjm > 3:
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mat_[j][i] = 'L'
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@ -31,120 +27,15 @@ def simulate(mat): # Part A.
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if adjm == 0:
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mat_[j][i] = '#'
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d += 1
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# [ print(x) for x in mat_ ]
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if d > 0:
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mat = simulate(mat_)
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return mat
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return mat
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def a(mat): #Holy [] this is slow!
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# [ print(''.join(x)) for x in simulate(mat) ]
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#Holy [] this is slow!
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[ print(''.join(x)) for x in simulate(mat) ]
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count = []
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[ count.append(x.count('#')) for x in simulate(mat) ]
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return sum(count)
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print(sum(count))
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# SEE b.py FOR PART 2 ANSWER
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# SEE b.py FOR PART 2 ANSWER
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# SEE b.py FOR PART 2 ANSWER
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# NOT USING THIS AS MY ANSWER.
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# # print(a(mat))
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# def diagrtx(mat, r, nc, pc, jdom):
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# [c, pb, nb] = [0, False, False]
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# for x in r:
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# y = -x + nc
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# if nb == False and -y in jdom:
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# cell = mat[-y][x]
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# if cell == '#':
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# c += 1
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# nb = True
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# elif cell == "L":
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# nb = True
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# y = x + pc
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# if pb == False and -y in jdom:
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# cell = mat[-y][x]
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# if cell == '#':
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# c += 1
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# pb = True
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# elif cell == "L":
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# pb = True
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# return c
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# def hrtx(mat, r, j, idom):
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# for x in r:
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# if x in idom:
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# cell = mat[j][x]
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# if cell == "#":
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# return 1
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# break
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# elif cell == "L":
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# break
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# return 0
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# def vrtx(mat, r, i, jdom):
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# for y in r:
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# if -y in jdom:
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# cell = mat[-y][i]
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# if cell == "#":
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# return 1
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# break
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# elif cell == "L":
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# break
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# return 0
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# def RTX(mat, idom, jdom, i, j): #generate diagonals - this is quality '3am' code right here
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# nc = i + j
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# pc = j - i
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# # print(nc, pc)
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# # print(list(range(i,len(mat[0]))))
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# # [ print(x) for x in mat ]
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# rl = range(i-1, -1, -1)
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# lr = range(i+1, len(mat[0]))
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# u = range(j+1, 1)
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# d = range(j-1, -len(mat), -1)
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# return (
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# diagrtx(mat, rl, nc, pc, jdom) + hrtx(mat, rl, -j, idom)
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# + diagrtx(mat, lr, nc, pc, jdom) + hrtx(mat, lr, -j, idom)
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# + vrtx(mat, u, i, idom) + vrtx(mat, d, i, idom)
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# )
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# #wtf part over.
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# def simulate2(mat):
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# idom = range(len(mat[0]))
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# jdom = range(len(mat))
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# mat_ = deepcopy(mat)
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# d = 0
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# for j in jdom:
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# for i in idom:
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# c = RTX(mat, idom, jdom, i, j)
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# cell = mat[j][i]
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# # print(i,j, c, cell)
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# if cell == "#":
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# if c > 4:
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# mat_[j][i] = 'L'
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# d += 1
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# elif cell == "L":
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# if c == 0:
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# mat_[j][i] = '#'
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# d += 1
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# [ print(''.join(x)) for x in mat_ ]
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# print('')
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# if d > 0:
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# mat = simulate2(mat_)
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# return mat
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# return mat
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# #increment x
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# # print([-x + nc if -(-x + nc) in jdom else None, x + pc if -(x + pc) in jdom else None])
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# # print({x:[-x + nc if -(-x + nc) in jdom else None, x + pc if -(x + pc) in jdom else None] for x in idom})
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# def b(mat): #Holy shit this is even slower!
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# count = []
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# [ count.append(x.count('#')) for x in simulate2(mat) ]
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# return sum(count)
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# print(b(mat))
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# # def rtx(mat, i, j): #raytracer
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27
11/b.py
27
11/b.py
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@ -3,7 +3,7 @@ from copy import deepcopy
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mat = [ ['.']+list(x)+['.'] for x in open('input').read().replace('L','#').splitlines() ] #
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null = [ '.' for x in range(len(mat[0])) ]
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# cmat = [null] + [ ['.']+[ '0' for y in range(len(mat[0])-2) ]+['.'] for x in mat ] + [null]
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# cmat = [null] + [ ['.']+[ '0' for y in range(len(mat[0])-2) ]+['.'] for x in mat ] + [null] #cmat is the number of # according to the rule, in matrix form.
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mat = [null] + mat + [null]
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def RTX_side(r, d, y, mat): # Yes i know this isn't proper raytracing but haha tech tip nvidia rtx 6900ti funny moment.
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@ -20,7 +20,6 @@ def RTX_side(r, d, y, mat): # Yes i know this isn't proper raytracing but haha t
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elif cell == '#':
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top = False
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c += 1
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# mat[y+j_d][i] = "Y"
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if y-j_d in d and bottom:
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cell = mat[y-j_d][i]
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if cell == 'L':
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@ -28,14 +27,12 @@ def RTX_side(r, d, y, mat): # Yes i know this isn't proper raytracing but haha t
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elif cell == '#':
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bottom = False
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c += 1
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# mat[y-j_d][i] = "Y"
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if side:
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if mat[y][i] == "L":
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side = False
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if mat[y][i] == "#":
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side = False
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c += 1
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# mat[y][i] = 'Y'
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if c == 3: break
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j_d += 1
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return c
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@ -46,35 +43,25 @@ def RTX_top(r, i, mat):
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return 0
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elif mat[j][i] == '#':
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return 1
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# mat[j][i] = "Y"
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return 0
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# mat_ = list(map(list, zip(*mat)))
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dim_j = len(mat)-1
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# dim_j = len(mat_)-2
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dim_i = len(mat[0])-1
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domVERT = range(1,dim_j+1) #Domain for vertical / j values
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# [ print(x) for x in mat ]
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def RTX_ON(mat):
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mat_ = deepcopy(mat)
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d = False
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for x in range(1, dim_i):
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for y in range(1, dim_j):
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# [ print(x) for x in mat ]
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# mat[y][x] = 'X'
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rN = range(y-1,0,-1)
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rS = range(y+1,dim_j+1)
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rE = range(x+1, dim_i+1)
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rW = range(x-1, 0, -1)
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# print(list(rN), list(rS))
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# print(list(rE), list(rW))
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c = (RTX_side(rE, domVERT, y, mat) + RTX_side(rW, domVERT, y, mat) + RTX_top(rN, x, mat) + RTX_top(rS, x, mat))
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# cmat[y][x] = (str)(c)
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# cmat[y][x] = (str)(c) #cmat is the number of # according to the rule, in matrix form.
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if mat[y][x] == '#' and c > 4:
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mat_[y][x] = 'L'
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d = True
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@ -82,13 +69,7 @@ def RTX_ON(mat):
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mat_[y][x] = '#'
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d = True
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if d == True:
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# print("")
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# print("")
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# [ print(x) for x in mat ]
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# [ print(x) for x in cmat ]
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# print("")
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# [ print(x) for x in mat_ ]
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# print("")
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#print(""); [ print(x) for x in mat ]; print(""); [ print(x) for x in cmat ]; print(""); [ print(x) for x in mat_ ]; print("") #good ol' print debugging
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mat = RTX_ON(mat_)
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return mat
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return mat
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@ -96,5 +77,5 @@ def RTX_ON(mat):
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simulated = RTX_ON(mat) #This is slow AF
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[ print(''.join(x)) for x in simulated ] #output ascii
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[ print(''.join(x)) for x in simulated ] #output ascii, why not?
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print(sum([ x.count('#') for x in simulated ]))
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