From 3a96aff0a398640ebc59c4f756ee61a5fb196a5a Mon Sep 17 00:00:00 2001
From: Matthias Bilger <matthias@bilger.info>
Date: Fri, 11 Dec 2020 08:15:36 +0100
Subject: [PATCH] use 2d array

---
 day11/module.py | 58 +++++++++++++++++++++++++------------------------
 1 file changed, 30 insertions(+), 28 deletions(-)

diff --git a/day11/module.py b/day11/module.py
index 7e95b08..7cb02c6 100644
--- a/day11/module.py
+++ b/day11/module.py
@@ -12,12 +12,12 @@ def pw(line):
 
 def p1():
     inp = get_input(pw)
-    grid = {}
     width = len(inp[0])
     height = len(inp)
+    grid = [['' for y in x] for x in inp]
     for y, sample in enumerate(inp):
         for x, o in enumerate(sample):
-            grid[(x,y)] = o
+            grid[y][x] = o
 
     changed = True
     adj = [(-1, 0), (0, -1), (1, 0), (0, 1), (1,-1), (1,1), (-1, 1), (-1, -1)]
@@ -30,28 +30,29 @@ def p1():
                 count = 0
                 for ax, ay in adj:
                     try:
-                        if grid[(x+ax, y+ay)] == '#':
+                        if grid[y+ay][x+ax] == '#':
                             count += 1
                     except:
                         pass
-                if count == 0 and grid[(x,y)] == 'L':
-                    newgrid[(x,y)] = '#'
+                if count == 0 and grid[y][x] == 'L':
+                    newgrid[y][x] = '#'
                     changed = True
                     ccnt += 1
-                if count >= 4 and grid[(x,y)] == '#':
-                    newgrid[(x,y)] = 'L'
+                if count >= 4 and grid[y][x] == '#':
+                    newgrid[y][x] = 'L'
                     changed = True
                     ccnt += 1
         grid = newgrid
 
 
     count = 0
-    if draw():
-        for y in range(height):
-            for x in range(width):
-                print(grid[(x,y)], end='')
-                if grid[(x,y)] == '#':
-                    count += 1
+    for y in range(height):
+        for x in range(width):
+            if draw():
+                print(grid[y][x], end='')
+            if grid[y][x] == '#':
+                count += 1
+        if draw():
             print()
     print(count)
 
@@ -59,12 +60,12 @@ def p1():
 
 
 def p2(inp):
-    grid = {}
     width = len(inp[0])
     height = len(inp)
+    grid = [['' for y in x] for x in inp]
     for y, sample in enumerate(inp):
         for x, o in enumerate(sample):
-            grid[(x,y)] = o
+            grid[y][x] = o
 
     changed = True
     adj = [(-1, 0), (0, -1), (1, 0), (0, 1), (1,-1), (1,1), (-1, 1), (-1, -1)]
@@ -74,7 +75,7 @@ def p2(inp):
         changed = False
         for y in range(height):
             for x in range(width):
-                if grid[(x,y)] == '.':
+                if grid[y][x] == '.':
                     continue
                 count = 0
                 for ax, ay in adj:
@@ -82,7 +83,7 @@ def p2(inp):
                     ay1 = ay
                     while True:
                         try:
-                            if grid[(x+ax, y+ay)] == '.':
+                            if grid[y+ay][x+ax] == '.':
                                 ax += ax1
                                 ay += ay1
                             else:
@@ -90,28 +91,29 @@ def p2(inp):
                         except:
                             break
                     try:
-                        if grid[(x+ax, y+ay)] == '#':
+                        if grid[y+ay][x+ax] == '#':
                             count += 1
                     except:
                         pass
-                if count == 0 and grid[(x,y)] == 'L':
-                    newgrid[(x,y)] = '#'
+                if count == 0 and grid[y][x] == 'L':
+                    newgrid[y][x] = '#'
                     changed = True
                     ccnt += 1
-                if count >= 5 and grid[(x,y)] == '#':
-                    newgrid[(x,y)] = 'L'
+                if count >= 5 and grid[y][x] == '#':
+                    newgrid[y][x] = 'L'
                     changed = True
                     ccnt += 1
         grid = newgrid
 
 
     count = 0
-    if draw():
-        for y in range(height):
-            for x in range(width):
-                print(grid[(x,y)], end='')
-                if grid[(x,y)] == '#':
-                    count += 1
+    for y in range(height):
+        for x in range(width):
+            if draw():
+                print(grid[y][x], end='')
+            if grid[y][x] == '#':
+                count += 1
+        if draw():
             print()
     print(count)