2023 day 1.

2023/day1.py

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+
+with open("input.txt") as file:
+    lines = file.readlines()
+
+# part 1
+
+total = 0
+for line in lines:
+    line = line.strip()
+    for my_char in line:
+        if my_char.isdigit():
+            first_number = my_char
+            break
+    for my_char in line[::-1]:
+        if my_char.isdigit():
+            second_number = my_char
+            break
+    str_number = first_number + second_number
+    int_number = int(str_number)
+    print(int_number)
+    total += int_number
+print(total)
+
+# part 2
+
+str_digits = ["one", "two", "three", "four", "five", "six", "seven", "eight", "nine"]
+
+
+
+total = 0
+for line in lines:
+    numbers = []
+    line = line.strip()
+    for i in range(len(line)):
+        my_char = line[i]
+        if my_char.isdigit():
+            numbers.append(my_char)
+            continue
+        for j, digit in enumerate(str_digits):
+            # python's string slicing prevents IndexError so don't need to worry about going out of bounds
+            my_digit = line[i:i+len(digit)]
+            # print("mydigit ", my_digit, ":", digit, ":", line)
+            if digit == my_digit:
+                number = str(j + 1)
+                numbers.append(number)
+                break
+
+    print("numbers", numbers)
+    str_number = numbers[0] + numbers[-1]
+    int_number = int(str_number)
+    print(int_number)
+    total += int_number
+print("part2")
+print(total)