day #12 udacity basic

workspace/50_udacity/2_data_type_and_operators/quiz/1_arithmetic_operators.py

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+# Write an expression that calculates the average of 23, 32 and 64
+# Place the expression in this print statement
+print((23 +32 + 64)/3)
+
+# Fill this in with an expression that calculates how many tiles are needed.
+tiles_needed = (9*7) + (5*7)
+total_tiles = 17 * 6
+
+print(tiles_needed)
+
+left_tiles = total_tiles - tiles_needed
+
+# Fill this in with an expression that calculates how many tiles will be left over.
+print(left_tiles)

workspace/50_udacity/2_data_type_and_operators/quiz/2_variables_and_assignment_operator.py

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+# The current volume of a water reservoir (in cubic metres)
+reservoir_volume = 4.445e8
+# The amount of rainfall from a storm (in cubic metres)
+rainfall = 5e6
+
+# Decrease the rainfall variable by 10% to account for runoff
+rainfall *= 0.9
+
+# Add the rainfall variable to the reservoir_volume variable
+reservoir_volume += rainfall
+
+# Increase reservoir_volume by 5% to account for stormwater that flows
+# into the reservoir in the days following the storm
+reservoir_volume *= 1.05
+
+# Decrease reservoir_volume by 5% to account for evaporation
+reservoir_volume *= 0.95
+
+# Subtract 2.5e5 cubic metres from reservoir_volume to account for water
+# that's piped to arid regions.
+reservoir_volume -= 2.5e5
+
+# Print the new value of the reservoir_volume variable
+print(reservoir_volume)

workspace/50_udacity/2_data_type_and_operators/quiz/3_bool.py

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+# Booleans, Comparison Operators, and Logical Operators
+sf_population, sf_area = 864816, 231.89
+rio_population, rio_area = 6453682, 486.5
+
+san_francisco_pop_density = sf_population/sf_area
+rio_de_janeiro_pop_density = rio_population/rio_area
+
+# Write code that prints True if San Francisco is denser than Rio, and False otherwise
+if(san_francisco_pop_density > rio_de_janeiro_pop_density):
+    print("True")
+else:
+    print("False")
+
+print(san_francisco_pop_density > rio_de_janeiro_pop_density)

workspace/50_udacity/2_data_type_and_operators/quiz/4_strings.py

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+# TODO: Fix this string!
+ford_quote = "Whether you think you can, or you think you can't--you're right."
+
+username = "Yogesh"
+timestamp = "16:20"
+url = "http://petshop.com/pets/reptiles/pythons"
+
+# TODO: print a log message using the variables above.
+# The message should have the same format as this one:
+# "Yogesh accessed the site http://petshop.com/pets/reptiles/pythons at 16:20."
+message = username + " accessed the site " + url + " at " + timestamp + "."
+print(message)
+
+# LEN
+given_name = "William"
+middle_names = "Bradley"
+family_name = "Pitt"
+
+full_name = given_name + " " + middle_names + " " + family_name
+name_length = len(full_name)
+
+# name_length = len(given_name + middle_names + family_name) + 2. The +2 accounts for the spaces in between each word.
+
+# Now we check to make sure that the name fits within the driving license character limit
+# Nothing you need to do here
+driving_license_character_limit = 28
+print(name_length <= driving_license_character_limit)
+
+# print(len(835)) # error len only works on sequences, not numbers