1 00:00:01,110 --> 00:00:02,460 All right, congratulations! 2 00:00:02,460 --> 00:00:05,970 You've got yourself a job at Python Pizza. 3 00:00:05,970 --> 00:00:09,870 So your first job as a programmer at Python Pizza 4 00:00:09,870 --> 00:00:13,380 is to build an automatic Pizza Order Program. 5 00:00:13,380 --> 00:00:16,110 That is the goal of this exercise. 6 00:00:16,110 --> 00:00:18,360 Take a look at the starting code. 7 00:00:18,360 --> 00:00:23,340 You'll see that the user can put in the size that they want, 8 00:00:23,340 --> 00:00:25,680 whether if they want to add pepperoni 9 00:00:25,680 --> 00:00:28,590 and whether if they want extra cheese. 10 00:00:28,590 --> 00:00:32,670 Based on the user input for these three criteria, 11 00:00:32,670 --> 00:00:36,060 we're going to work out what is the price of their pizza. 12 00:00:36,060 --> 00:00:38,310 If you look inside the description box 13 00:00:38,310 --> 00:00:40,950 you'll see the different modifiers. 14 00:00:40,950 --> 00:00:44,340 Starting with the size, we have different prices 15 00:00:44,340 --> 00:00:46,830 for small, medium, and large. 16 00:00:46,830 --> 00:00:50,010 And then if somebody wants to add pepperoni 17 00:00:50,010 --> 00:00:53,437 that's an extra $2 to a small pizza, 18 00:00:53,437 --> 00:00:56,640 $3 for a medium or large pizza. 19 00:00:56,640 --> 00:01:00,000 And finally, if you want to add extra cheese for any pizza 20 00:01:00,000 --> 00:01:03,000 that's just a single extra dollar. 21 00:01:03,000 --> 00:01:05,280 If you take a look at the example input 22 00:01:05,280 --> 00:01:06,810 where we've got a large pizza 23 00:01:06,810 --> 00:01:11,810 where they want "Yes" to pepperoni and "No" to extra cheese, 24 00:01:12,420 --> 00:01:16,140 then the example output is as follows. 25 00:01:16,140 --> 00:01:18,300 "Thank you for choosing Python Pizza Deliveries! 26 00:01:18,300 --> 00:01:21,630 "Your final bill is: $28." 27 00:01:21,630 --> 00:01:23,880 Now remember, the first line of that output 28 00:01:23,880 --> 00:01:26,130 is already printed for you in line 1, 29 00:01:26,130 --> 00:01:27,930 so you don't need to worry about that. 30 00:01:27,930 --> 00:01:30,630 All you need to figure out is how to build the program 31 00:01:30,630 --> 00:01:33,480 so that it prints out, "Your final bill is", 32 00:01:33,480 --> 00:01:35,700 and then calculates the correct value 33 00:01:35,700 --> 00:01:37,680 based on the user input. 34 00:01:37,680 --> 00:01:40,710 And the user input is just going to be a bunch of letters. 35 00:01:40,710 --> 00:01:44,370 So the first input is going to come in for the size, 36 00:01:44,370 --> 00:01:45,510 S, M or L. 37 00:01:45,510 --> 00:01:48,060 The second one is going to be Y or N, 38 00:01:48,060 --> 00:01:51,120 and the third one is also going be Y or N. 39 00:01:51,120 --> 00:01:52,770 Pause, have a think about this, 40 00:01:52,770 --> 00:01:54,780 apply your knowledge of conditionals, 41 00:01:54,780 --> 00:01:57,123 and see if you can complete this exercise. 42 00:02:05,490 --> 00:02:07,410 Alright, so the first thing we're going to do 43 00:02:07,410 --> 00:02:10,590 is we're going to create a variable called "bill" 44 00:02:10,590 --> 00:02:15,590 to keep track of the ongoing price of their pizza. 45 00:02:16,050 --> 00:02:20,640 We can start that bill at $0 and then we can proceed. 46 00:02:20,640 --> 00:02:24,480 The next part of our code checks for the first condition, 47 00:02:24,480 --> 00:02:29,480 which is whether if their first input was S, M, or L, 48 00:02:30,330 --> 00:02:32,460 and we can use an if, elif, else, 49 00:02:32,460 --> 00:02:34,560 or we can use three if statements. 50 00:02:34,560 --> 00:02:36,810 You can do it in many ways, 51 00:02:36,810 --> 00:02:38,580 but essentially we're checking to see 52 00:02:38,580 --> 00:02:40,620 if they put an input of S, 53 00:02:40,620 --> 00:02:42,660 then we're going to add $15 to the bill. 54 00:02:42,660 --> 00:02:45,330 If they put an input of M on the first line, 55 00:02:45,330 --> 00:02:46,620 then we're going to add 20. 56 00:02:46,620 --> 00:02:51,510 And if the last condition, or we want to check if it was L, 57 00:02:51,510 --> 00:02:54,033 then we can add $25. 58 00:02:55,860 --> 00:02:58,680 Now the next condition is whether if they wanted pepperoni 59 00:02:58,680 --> 00:02:59,880 on their pizza, 60 00:02:59,880 --> 00:03:01,980 and if the answer is yes, 61 00:03:01,980 --> 00:03:05,730 then we have to check against the size that they ordered. 62 00:03:05,730 --> 00:03:09,030 If the size was medium or large, 63 00:03:09,030 --> 00:03:11,250 we're going to add $3 to their bill, 64 00:03:11,250 --> 00:03:14,460 and if it was small, then we're going to add only $2. 65 00:03:14,460 --> 00:03:16,740 So you could have used a combination. 66 00:03:16,740 --> 00:03:19,170 So you could have said if size == "M" 67 00:03:19,170 --> 00:03:20,790 and size == "L", 68 00:03:20,790 --> 00:03:23,010 but in this case, what I've done is simply checked 69 00:03:23,010 --> 00:03:25,860 for just the single statement, which is unique. 70 00:03:25,860 --> 00:03:27,900 If the size is small, then add two. 71 00:03:27,900 --> 00:03:31,140 In all other conditions, add three. 72 00:03:31,140 --> 00:03:33,420 Final condition is probably the easiest. 73 00:03:33,420 --> 00:03:37,500 We simply want to check is the last input is "Yes" 74 00:03:37,500 --> 00:03:40,380 in this case, we just add $1 to the bill. 75 00:03:40,380 --> 00:03:42,600 And all of these things added up 76 00:03:42,600 --> 00:03:46,230 will eventually create the final price for the pizza. 77 00:03:46,230 --> 00:03:50,190 And we can print out that final price using an f-string 78 00:03:50,190 --> 00:03:54,510 by inserting the bill into the print statement, 79 00:03:54,510 --> 00:03:57,330 and make sure that you've got all your punctuation, 80 00:03:57,330 --> 00:04:00,960 your full stops, everything matching exactly what it says 81 00:04:00,960 --> 00:04:01,950 in the description, 82 00:04:01,950 --> 00:04:04,140 otherwise, the tests won't pass. 83 00:04:04,140 --> 00:04:05,880 But otherwise, all going well, 84 00:04:05,880 --> 00:04:09,210 you should be able to submit your code solution 85 00:04:09,210 --> 00:04:12,783 and it should show as passed for all conditions.