Add word_to_number function for converting words to numbers

Author: NitkarshChourasia

word2number.py

@@ -0,0 +1,75 @@
+def word_to_number(word):
+    numbers_dict = {
+        "zero": 0,
+        "one": 1,
+        "two": 2,
+        "three": 3,
+        "four": 4,
+        "five": 5,
+        "six": 6,
+        "seven": 7,
+        "eight": 8,
+        "nine": 9,
+        "ten": 10,
+        "eleven": 11,
+        "twelve": 12,
+        "thirteen": 13,
+        "fourteen": 14,
+        "fifteen": 15,
+        "sixteen": 16,
+        "seventeen": 17,
+        "eighteen": 18,
+        "nineteen": 19,
+        "twenty": 20,
+        "thirty": 30,
+        "forty": 40,
+        "fifty": 50,
+        "sixty": 60,
+        "seventy": 70,
+        "eighty": 80,
+        "ninety": 90,
+        "hundred": 100,
+        "thousand": 1000,
+        "lakh": 100000,
+        "crore": 10000000,
+        "billion": 1000000000,
+        "trillion": 1000000000000,
+    }
+
+    # Split the string into words
+    words = word.split()
+
+    result = 0
+    current_number = 0
+
+    # Ways I can make this more efficient:
+    for w in words:
+        if w in numbers_dict:
+            current_number += numbers_dict[w]
+        elif w == "hundred":
+            current_number *= 100
+        elif w == "thousand":
+            result += current_number * 1000
+            current_number = 0
+        elif w == "lakh":
+            result += current_number * 100000
+            current_number = 0
+        elif w == "crore":
+            result += current_number * 10000000
+            current_number = 0
+        elif w == "billion":
+            result += current_number * 1000000000
+            current_number = 0
+        elif w == "trillion":
+            result += current_number * 1000000000000
+            current_number = 0
+
+    result += current_number
+
+    return result
+
+
+# Example usage:
+number_str = "two trillion seven billion fifty crore thirty-four lakh seven thousand nine hundred"
+result = word_to_number(number_str)
+print(result)