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Author: Salatmate

Day 8.py

@@ -0,0 +1,82 @@
+test2 = ['acedgfb cdfbe gcdfa fbcad dab cefabd cdfgeb eafb cagedb ab | cdfeb fcadb cdfeb cdbaf']
+
+test = '''be cfbegad cbdgef fgaecd cgeb fdcge agebfd fecdb fabcd edb | fdgacbe cefdb cefbgd gcbe
+edbfga begcd cbg gc gcadebf fbgde acbgfd abcde gfcbed gfec | fcgedb cgb dgebacf gc
+fgaebd cg bdaec gdafb agbcfd gdcbef bgcad gfac gcb cdgabef | cg cg fdcagb cbg
+fbegcd cbd adcefb dageb afcb bc aefdc ecdab fgdeca fcdbega | efabcd cedba gadfec cb
+aecbfdg fbg gf bafeg dbefa fcge gcbea fcaegb dgceab fcbdga | gecf egdcabf bgf bfgea
+fgeab ca afcebg bdacfeg cfaedg gcfdb baec bfadeg bafgc acf | gebdcfa ecba ca fadegcb
+dbcfg fgd bdegcaf fgec aegbdf ecdfab fbedc dacgb gdcebf gf | cefg dcbef fcge gbcadfe
+bdfegc cbegaf gecbf dfcage bdacg ed bedf ced adcbefg gebcd | ed bcgafe cdgba cbgef
+egadfb cdbfeg cegd fecab cgb gbdefca cg fgcdab egfdb bfceg | gbdfcae bgc cg cgb
+gcafb gcf dcaebfg ecagb gf abcdeg gaef cafbge fdbac fegbdc | fgae cfgab fg bagce'''.split('\n')
+inp = open('Day 8.txt','r').read().split('\n')
+
+def part1(inp):
+    ans = 0
+    for i in inp:
+        output = i.split('| ')[1]
+        for x in output.split(' '):
+            length = len(x)
+            if length == 2 or length == 3 or length == 4 or length == 7:
+                ans += 1
+    print(ans)
+                
+    
+def part2(inp):
+    ans = 0
+    for i in inp:
+        patterns = i.split(' |')[0].split()
+        patterns.sort(key=len)
+        signals = [list('abcdefg') for i in range(7)]
+        signals[0] = [i for i in list(patterns[1]) if i not in list(patterns[0])][0]
+        signals[1] = [i for i in list(patterns[2]) if i not in list(patterns[0])]
+        signals[2] = list(patterns[0])
+        signals[3] = [i for i in list(patterns[2]) if i not in list(patterns[0])]
+        signals[4] = [i for i in list('abcdefg') if i not in list(patterns[1])+list(patterns[2])]
+        signals[5] = list(patterns[0])
+        signals[6] = [i for i in list('abcdefg') if i not in list(patterns[1])+list(patterns[2])]
+
+        char5 = patterns[3:6]
+        if sum([chars.count(signals[1][0]) for chars in char5]) == 1:
+            signals[1] = signals[1][0]
+            signals[3] = signals[3][1]
+        else:
+            signals[1] = signals[1][1]
+            signals[3] = signals[3][0]
+
+        char6 = patterns[6:9]
+        if sum([chars.count(signals[2][0]) for chars in char6]) == 2:
+            signals[2] = signals[2][0]
+            signals[5] = signals[5][1]
+        else:
+            signals[2] = signals[2][1]
+            signals[5] = signals[5][0]
+        if sum([chars.count(signals[4][0]) for chars in char6]) == 2:
+            signals[4] = signals[4][0]
+            signals[6] = signals[6][1]
+        else:
+            signals[4] = signals[4][1]
+            signals[6] = signals[6][0]
+            
+
+        out = i.split('| ')[1].split()
+        string = ''
+        for digit in out:
+            match sorted([signals.index(i) for i in digit]):
+                case [0,1,2,4,5,6]: string += '0'
+                case [2,5]: string += '1'
+                case [0,2,3,4,6]: string += '2'
+                case [0,2,3,5,6]: string += '3'
+                case [1,2,3,5]: string += '4'
+                case [0,1,3,5,6]: string += '5'
+                case [0,1,3,4,5,6]: string += '6'
+                case [0,2,5]: string += '7'
+                case [0,1,2,3,4,5,6]: string += '8'
+                case [0,1,2,3,5,6]: string += '9'
+        ans += int(string)
+    print(ans)
+                    
+    
+part1(inp)
+part2(inp)