All language subtitles for 14. Continue (Upgrade) Rotate Left a given array by N positions - Solution

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These are the user uploaded subtitles that are being translated: 1 00:00:00,820 --> 00:00:02,010 All right. 2 00:00:02,290 --> 00:00:05,650 So have you come to some solution? 3 00:00:06,860 --> 00:00:11,630 If so, please also feel free to share it with us, so we could take a look at it together. 4 00:00:12,530 --> 00:00:17,480 But for now, let us solve it using this approach that I'm about to show you. 5 00:00:18,500 --> 00:00:24,320 So first of all, what I want you to understand is, yeah, of course, we can separate all of them 6 00:00:24,320 --> 00:00:27,050 into two functions into two separate functions. 7 00:00:27,470 --> 00:00:35,450 But for now, since we are just practicing the programming and the general approach for algorithms, 8 00:00:35,450 --> 00:00:42,950 some basic algorithms to rotate it to left by in positions, we are going to ask the following question 9 00:00:42,950 --> 00:00:49,040 OK, I'm going to make it very, very straightforward, so we will not spend a lot of time on it. 10 00:00:49,580 --> 00:00:51,230 So I want to ask you this one. 11 00:00:52,690 --> 00:00:57,750 So we know that these part of code, we know that these aren't. 12 00:00:58,270 --> 00:01:01,530 He's in charge of rotating by one, right? 13 00:01:01,870 --> 00:01:04,540 Rotate by one position. 14 00:01:04,660 --> 00:01:05,440 One was. 15 00:01:07,320 --> 00:01:15,240 So what will happen if we apply rotate by one position to this array, so we know that after applying 16 00:01:15,240 --> 00:01:20,850 these code, what we will get is the following three, four, seven, three and five. 17 00:01:21,600 --> 00:01:22,560 Is this correct? 18 00:01:23,310 --> 00:01:27,300 So this was to rotate by one. 19 00:01:28,260 --> 00:01:31,230 And that's something that we have created in previous videos. 20 00:01:32,770 --> 00:01:34,870 But that's not the expected result. 21 00:01:35,350 --> 00:01:44,230 This is the expected to result, so from this to this, what we need to do is basically to take this 22 00:01:44,230 --> 00:01:45,550 array once again. 23 00:01:46,930 --> 00:01:49,780 And to apply on it, what should we apply in it? 24 00:01:50,020 --> 00:01:53,860 Once again, the operation of rotate by one. 25 00:01:55,010 --> 00:02:03,110 That's all that's all we need to do if we rotate this array by one again, so for will, go to there 26 00:02:03,110 --> 00:02:07,790 in seven three five will be at the beginning and that should be the final result. 27 00:02:08,360 --> 00:02:15,810 So we should use the main functionality here of rotating by one, rotate by one, rotate by one. 28 00:02:16,070 --> 00:02:20,510 How many times and times is it clear? 29 00:02:21,440 --> 00:02:27,740 So that's the main objective of what we want to do here and what do we want to achieve in solving this 30 00:02:27,740 --> 00:02:28,520 exercise? 31 00:02:29,240 --> 00:02:32,060 So let me show you how it will look in code. 32 00:02:32,840 --> 00:02:37,550 So we said previously that these part of rotating by one position looks like this. 33 00:02:39,040 --> 00:02:44,530 And now what we need to do is, let's say we defined an or you created a variable in and read it from 34 00:02:44,530 --> 00:02:47,590 the user once again doesn't really matter. 35 00:02:47,860 --> 00:02:50,640 But what is matter to us? 36 00:02:50,650 --> 00:02:57,640 What does matter to us is every basically every time to apply these part of code. 37 00:02:58,540 --> 00:02:58,990 OK? 38 00:02:59,020 --> 00:03:05,140 That can again be used as an external function, but for now, for simplicity. 39 00:03:05,290 --> 00:03:11,860 Let's leave it this way because we build our way up so we can use another for a loop. 40 00:03:12,220 --> 00:03:12,730 OK? 41 00:03:13,060 --> 00:03:16,270 Using some, I don't know, additional variable G. 42 00:03:17,690 --> 00:03:21,770 OK, or better, I say let's use Kate will be better for understanding. 43 00:03:22,580 --> 00:03:33,110 So for gay equals to zero as case less than what how many times we want to do all of this part of code, 44 00:03:33,440 --> 00:03:34,300 we want to do it. 45 00:03:34,310 --> 00:03:40,760 And times so gay equals to zero as long as gay is less than M K plus plus. 46 00:03:41,600 --> 00:03:52,790 So these are part of code eight makes sure that we will use their reported left one element, one position 47 00:03:53,030 --> 00:03:53,870 and times. 48 00:03:54,650 --> 00:03:57,290 And basically, that's what will happen. 49 00:03:58,280 --> 00:04:03,470 So we take the array once here we rotate it to the left. 50 00:04:03,470 --> 00:04:04,370 That's what we get. 51 00:04:04,970 --> 00:04:07,760 Then we go back to the outer loop. 52 00:04:08,360 --> 00:04:09,800 We communicate by one. 53 00:04:09,800 --> 00:04:11,570 We ask one is less than two. 54 00:04:11,600 --> 00:04:15,980 Yes, so we make the rotation once again on this array. 55 00:04:16,930 --> 00:04:24,370 And then we get this array and then we go, Kate plus one and we get to is to less than two. 56 00:04:24,400 --> 00:04:25,270 The answer is no. 57 00:04:25,480 --> 00:04:26,440 And we are done. 58 00:04:26,770 --> 00:04:32,590 And now you should be able to print the array again and to see the expected results. 59 00:04:34,140 --> 00:04:34,580 OK. 60 00:04:35,640 --> 00:04:41,130 So, yeah, I hope this is clear, guys, and if you have any questions, feel free to ask. 61 00:04:41,460 --> 00:04:43,290 Please run some tests on your own. 62 00:04:43,290 --> 00:04:49,710 Make sure that everything works as expected because we do not have the exact full solutions. 63 00:04:49,920 --> 00:04:54,510 We solve it together with you, at least in some of the exercises. 64 00:04:55,050 --> 00:04:58,260 So, yeah, thank you so much for watching. 65 00:04:58,650 --> 00:05:00,550 Leave me some reviews, some feedback. 66 00:05:00,570 --> 00:05:09,750 It always helps and assists for me to know your thoughts and improving the content if it needs to be 67 00:05:09,750 --> 00:05:10,200 improved. 68 00:05:11,250 --> 00:05:16,710 But for now, thank you so much for watching again, and I'll see you in the next video. 69 00:05:16,800 --> 00:05:18,750 My name is Ludd Lisas alpha tech. 70 00:05:18,930 --> 00:05:19,350 My. 6492

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