All language subtitles for 5. Total Even Numbers in a Sequence - Question

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Would you like to inspect the original subtitles? These are the user uploaded subtitles that are being translated: 1 00:00:00,680 --> 00:00:10,370 All right, welcome back to additional exercise in our programming course, who we are getting better 2 00:00:10,370 --> 00:00:12,920 and better every hopefully every day. 3 00:00:13,180 --> 00:00:18,410 OK, so what this exercise is all about. 4 00:00:19,430 --> 00:00:19,910 All right. 5 00:00:19,910 --> 00:00:23,570 So we are talking about recursions and this exercise. 6 00:00:24,490 --> 00:00:31,330 As well as probably the next one are going to be pretty much the same or not the same, but they are 7 00:00:31,330 --> 00:00:37,000 going to be very similar, but actually different, OK, because you will have to think what is the 8 00:00:37,000 --> 00:00:43,990 difference in their solution, although the question is going to be pretty much very similar, but the 9 00:00:43,990 --> 00:00:46,910 solution has to be very precise. 10 00:00:47,320 --> 00:00:53,080 So with that being said, I hope you already grab something nice to bring beforehand. 11 00:00:53,080 --> 00:00:58,420 And let's start our practice, our recursion practice. 12 00:01:00,080 --> 00:01:10,690 OK, so what do we have to do now is to write a recursive recursive function that will calculate and 13 00:01:10,690 --> 00:01:13,870 return the total number. 14 00:01:14,050 --> 00:01:26,050 The total number are the total total number of occurrences or occurrences of even numbers in a sequence. 15 00:01:26,240 --> 00:01:35,050 OK, so once again, we will have a sequence of numbers that the user will specify, OK, up until this 16 00:01:35,050 --> 00:01:37,840 stopping condition, up until minus one. 17 00:01:38,260 --> 00:01:45,580 So the user is going to insert different numbers one after the other and we are going to read it and 18 00:01:45,730 --> 00:01:53,510 to calculate what is the total number of occurrences of even numbers in this sequence. 19 00:01:54,010 --> 00:01:57,670 So, for example, let's make something simple. 20 00:01:58,450 --> 00:02:04,480 For example, we have this sequence like one, three, four, six. 21 00:02:04,630 --> 00:02:12,970 OK, then for this sequence, the function, this recursive function, basically with this stopping 22 00:02:12,970 --> 00:02:20,890 condition for this sequence, the function should return the value of two and why we want to return 23 00:02:20,890 --> 00:02:27,480 the value of two, because we know that one is not even three is not even four is even. 24 00:02:27,520 --> 00:02:35,170 That's why we have at least one even value in our section when we read the next element. 25 00:02:35,170 --> 00:02:38,550 And that six six is also an even number. 26 00:02:39,070 --> 00:02:45,000 That's why we know we have two two even numbers in this sequence. 27 00:02:45,970 --> 00:02:49,510 So the minus one will be used for the stopping condition. 28 00:02:49,510 --> 00:02:56,530 And then like we've seen it previously, we are going to make some recursive calls, recursive functions 29 00:02:56,530 --> 00:02:57,670 and so on and so forth. 30 00:02:57,940 --> 00:03:07,660 We are going to receive finally the number of the total amount of numbers which are even in this sequence. 31 00:03:08,600 --> 00:03:17,810 So I hope the instructions are clear and let's start working, try it on your own and only then watch 32 00:03:17,840 --> 00:03:18,740 the solutions. 33 00:03:18,830 --> 00:03:19,820 Good luck, guys. 3526

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