Merge pull request YearOfProgramming#186 from returnlove/master

challenge_0 in python

challenge_0/python/returnlove/README.md

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+hello world.
+
+run:
+python helloworld.py

challenge_0/python/returnlove/src/helloworld.py

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+print("Hello World!")

challenge_1/python/returnlove/README.md

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+Solution to reverse a string
+
+Run:
+
+python reverse_a_string.py
+type input string on the console and enter

challenge_1/python/returnlove/src/reverse_a_string.py

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+# read input string from user
+input_string = raw_input("enter any string")
+
+# solution 1
+# create a variable to store the reversed string
+reversed_string = ""
+
+# loop through the input in reverse order and append each letter
+for l in xrange(len(input_string)-1, -1, -1):
+	reversed_string += str(input_string[l])
+
+print('Solution 1: ',reversed_string)
+
+
+# solutin 2
+print('Solution 2: ',''.join(reversed(input_string)))
+
+# solution 3
+print('Solution 3: ',input_string[::-1])