advent_of_code_2024_day_1

2024/01/part 1 solution.py

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+with open(r'2024/01/input.txt', 'r') as file:
+    input = file.read()
+
+test_input = '''3   4
+4   3
+2   5
+1   3
+3   9
+3   3'''
+
+
+# first split the input into two lists, left and right
+left_list = []
+right_list = []
+
+for line in input.split('\n'):
+    left, right = line.split('   ')
+    left_list.append(int(left))
+    right_list.append(int(right))
+
+# now sort each list acecnding
+left_list.sort()
+right_list.sort()
+# print('left ',left_list)
+# print('right',right_list)
+
+# now compare each element in the left list with the corresponding element in the right list
+# we need to get the difference between the two elements
+diff_list = []
+for i in range(len(left_list)):
+    diff_list.append(abs(left_list[i] - right_list[i]))
+
+# print(diff_list)
+
+# now we sum up all the items in the list
+
+print(sum(diff_list))

2024/01/part 2 solution.py

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+with open(r'2024/01/input.txt', 'r') as file:
+    input = file.read()
+
+test_input = '''3   4
+4   3
+2   5
+1   3
+3   9
+3   3'''
+
+
+# first split the input into two lists, left and right
+left_list = []
+right_list = []
+
+for line in input.split('\n'):
+    left, right = line.split('   ')
+    left_list.append(int(left))
+    right_list.append(int(right))
+
+# for every item in the left list we need to count how many times it appears in the right list
+
+score = []
+for i in left_list:
+    if i in right_list:
+        score.append(i * right_list.count(i))
+
+
+#print(score)
+print(sum(score))