Add 2023-1

1/main.py

@@ -0,0 +1,40 @@
+#!/usr/bin/env python3
+
+digit_map = {
+    'zero': 0,
+    'one': 1,
+    'two': 2,
+    'three': 3,
+    'four': 4,
+    'five':  5,
+    'six': 6,
+    'seven': 7,
+    'eight': 8,
+    'nine': 9
+}
+
+def find_digit_name(line):
+    for digit_name in digit_map.keys():
+        if line.startswith(digit_name):
+            return digit_map[digit_name]
+    return None
+
+def find_digit(line, check_range):
+    for i in check_range:
+        if line[i].isdigit():
+            return int(line[i])
+        if (digit := find_digit_name(line[i:])) is not None:
+            return digit
+        
+
+# read input file
+with open('input', 'r') as f:
+    lines = f.readlines()
+    lines_sum = 0
+    for line in lines:
+        first_digit = find_digit(line, range(len(line)))
+        last_digit = find_digit(line, range(len(line) - 1, -1, -1))
+        num = str(first_digit) + str(last_digit)
+        lines_sum += int(num)
+
+print(lines_sum)