Added new algorithm to generate numbers in lexicographical order

data_structures/stacks/lexicographical_numbers.py

@@ -0,0 +1,21 @@
+def lexical_order(n: int) -> str:
+
+    ans = []
+    stack = [1]
+
+    while stack:
+        num = stack.pop()
+        if num > n:
+            continue
+
+        ans.append(str(num))
+        if (num % 10) != 9:  
+            stack.append(num + 1)
+
+        stack.append(num * 10)
+
+    return " ".join(ans)
+
+if __name__ == "__main__":
+
+    print(f"Numbers from 1 to 25 in lexical order: {lexical_order(25)}")