Python challenges hw

challenges/01-calc.py

@@ -2,3 +2,25 @@
 # input() always returns a string value. If you ever want someone
 # to enter a number you have to use the `int()` function to convert
 # what they typed in to a string.
+
+
+user_input = input("what method wouls you like to use: +, -, *, / ")
+user_input_num_1 = input("give me a number")
+user_input_num_2 = input('give me another number')
+number1 = int(user_input_num_1)
+number2 = int(user_input_num_2)
+
+def do_math():
+    if user_input == "+":
+        return number1 + number2
+    elif user_input == "-":
+        return number1 - number2
+    elif user_input == "*":
+        return number1 * number2
+    elif user_input == "/":
+        return number1 / number2
+    else:
+        return "not a valid operator"
+
+print(do_math())
+

challenges/02-reverse.py

@@ -6,3 +6,12 @@
 # several ways to reverse a string, and it's a good read!
 #
 # http://www.techbeamers.com/essential-python-tips-tricks-programmers/?utm_source=mybridge&utm_medium=blog&utm_campaign=read_more#tip1
+
+
+def reverse_string(string):
+    reversed_string = ''
+    for _ in string:
+        reversed_string = _ + reversed_string
+    return reversed_string
+
+print(reverse_string("carebears"))

challenges/03-bank.py

@@ -1,3 +1,23 @@
 print("Welcome to Chase bank.")
 print("Have a nice day!")
 
+
+action = input("Chose an action: balance, withdraw, deposit\n" )
+user_balance = 4000
+
+if action == 'balance':
+    print(user_balance)
+elif action == "withdraw":
+    deposit = input("how much would you like to withdraw \n")
+    deposit_value = int(deposit)
+    print(user_balance - deposit_value)
+elif action == 'deposit':
+    withdraw = input("how much would you like to deposit \n")
+    withdraw_amount = int(withdraw)
+    print(user_balance + withdraw_amount)
+else:
+    print("invalid option")
+
+
+
+

challenges/04-alphabetical.py

@@ -1,3 +1,11 @@
 # You'll need to use a couple of built in functions to alphabetize a string. 
 # Try to avoid looking up the exact answer and look at built in functions for
 # lists and strings instead.
+
+def sort_string(string):
+    sorted_string = ''.join(sorted(string))
+    return sorted_string
+
+user_string = input("Give me a string\n")
+
+print(sort_string(user_string))