1 00:00:05,960 --> 00:00:07,310 Hey, guys, what's up? 2 00:00:07,730 --> 00:00:09,950 So today we are solving one more problem. 3 00:00:10,370 --> 00:00:12,020 So the drug treatment is very simple. 4 00:00:12,730 --> 00:00:20,730 Given in use, it will give us the value of N and we have to find some of it legit, some of it. 5 00:00:22,160 --> 00:00:29,570 So given given a number and find some of it digit. 6 00:00:30,080 --> 00:00:33,560 For example, if the value of an is my number is let's say. 7 00:00:34,610 --> 00:00:41,030 347 some output should be three plus four plus seven, which is. 8 00:00:42,270 --> 00:00:42,700 Fourteen. 9 00:00:43,620 --> 00:00:43,770 OK. 10 00:00:44,260 --> 00:00:50,520 Similarly to the well, you know, my number is 123 some output, Richard Reid one plus two plus three, 11 00:00:50,610 --> 00:00:51,600 which is six. 12 00:00:52,380 --> 00:00:55,860 Similarly, if the number is one, some output should be. 13 00:00:56,910 --> 00:00:58,360 So my answer should be one. 14 00:00:59,430 --> 00:01:01,330 Similarly, if my number is, let's say ten. 15 00:01:01,530 --> 00:01:08,720 Some output should be one plus zero, which is when if my number is let's say 25, some are, which 16 00:01:08,720 --> 00:01:11,730 would be two plus five, which is seven. 17 00:01:12,870 --> 00:01:18,270 So problem is very easy, given a number and we have to find some of its legit. 18 00:01:19,790 --> 00:01:20,030 OK. 19 00:01:20,550 --> 00:01:22,410 So how we can solve this problem? 20 00:01:24,020 --> 00:01:27,820 If you want to think, if you want to take some time, you can, both of you. 21 00:01:28,650 --> 00:01:28,880 OK. 22 00:01:29,420 --> 00:01:33,290 So the solution is the algorithm for solving this problem is very easy. 23 00:01:35,090 --> 00:01:35,990 So what do we do? 24 00:01:36,800 --> 00:01:40,350 So, for example, my number is three 47. 25 00:01:41,990 --> 00:01:47,040 So first of all, what I will do 347 Modulus 10. 26 00:01:47,510 --> 00:01:50,270 So Waterloo output Remender, which is seven. 27 00:01:52,360 --> 00:02:01,260 OK, then I will divide 347 Biotin, which is thirty four point seven, but in deejayed up on A.J. has 28 00:02:01,270 --> 00:02:04,090 to be in in BIJA, which is 34. 29 00:02:05,820 --> 00:02:17,190 OK, now I will 34, now 34, more than last digit for 34, divided by a ten three point four, which 30 00:02:17,190 --> 00:02:18,050 is three. 31 00:02:18,690 --> 00:02:23,000 Now three more then will give me the last digit, which is three. 32 00:02:23,670 --> 00:02:26,400 Now three divided by ten, which is zero. 33 00:02:26,400 --> 00:02:28,410 Point three, which is zero. 34 00:02:28,830 --> 00:02:30,570 So when we reach zero, stop. 35 00:02:32,070 --> 00:02:37,340 So where did you answer seven plus four plus three. 36 00:02:40,200 --> 00:02:41,640 OK, so this will be my answer. 37 00:02:42,120 --> 00:02:45,060 Seven plus four plus three, which is. 38 00:02:46,150 --> 00:02:46,660 14. 39 00:02:48,230 --> 00:02:48,960 So this is our. 40 00:02:49,020 --> 00:02:50,850 This alone will work. 41 00:02:52,520 --> 00:02:53,660 So what I will do? 42 00:02:54,170 --> 00:02:56,660 Find the last digit. 43 00:02:58,250 --> 00:02:59,620 Find last digit. 44 00:03:00,110 --> 00:03:01,430 How I can find last digit. 45 00:03:02,460 --> 00:03:06,060 No, MAAD, then will you give me the last digit? 46 00:03:06,390 --> 00:03:11,220 You can see here seven was the last digit, four was the last digit. 47 00:03:11,910 --> 00:03:12,750 So if you take. 48 00:03:13,980 --> 00:03:15,390 More to turn off any number. 49 00:03:15,450 --> 00:03:16,980 It will give me the last digit. 50 00:03:17,820 --> 00:03:18,990 So you got the last digit. 51 00:03:19,500 --> 00:03:20,100 What do you will do? 52 00:03:20,160 --> 00:03:23,190 We will maintain a variable sum, which will initially be zero. 53 00:03:23,640 --> 00:03:31,360 And after finding the last digit, we will add the last digit to some because some equals some blis 54 00:03:31,520 --> 00:03:31,930 last. 55 00:03:32,370 --> 00:03:33,410 And now we will not. 56 00:03:33,600 --> 00:03:35,250 And now we are updating the number. 57 00:03:35,770 --> 00:03:36,050 OK. 58 00:03:36,450 --> 00:03:39,990 So number will be updated by number will be divided by 10. 59 00:03:41,840 --> 00:03:44,840 Here you can see 347 was divided by 10. 60 00:03:44,880 --> 00:03:47,010 So my new number is 34. 61 00:03:47,910 --> 00:03:51,270 So with the help of this line, I will get a new number. 62 00:03:51,360 --> 00:03:56,550 So this is new number 34 is new number and 347 was all the number. 63 00:03:57,210 --> 00:04:01,950 Similarly, you can see here, 34 was here, all the number. 64 00:04:02,280 --> 00:04:07,390 And by dividing sorry, the 34 was all in the mood here and dividing by 10. 65 00:04:07,470 --> 00:04:09,390 I will get three, which is my new number. 66 00:04:09,990 --> 00:04:12,000 So with the help of this, I will get a new number. 67 00:04:12,600 --> 00:04:17,820 And how many times I will find the last digit and last digit. 68 00:04:18,180 --> 00:04:19,310 And update a number. 69 00:04:20,040 --> 00:04:21,870 Bill, I get a zero. 70 00:04:23,220 --> 00:04:25,860 Daily, my new number is not close to zero. 71 00:04:26,700 --> 00:04:27,900 So what I will do. 72 00:04:28,710 --> 00:04:29,880 So let me write the code. 73 00:04:35,040 --> 00:04:36,600 So I will do something like this. 74 00:04:38,310 --> 00:04:40,680 Initially, my sum will be zero. 75 00:04:41,490 --> 00:04:43,860 Now, how many times I have to run the loop? 76 00:04:44,010 --> 00:04:45,840 How many times I will find last digit? 77 00:04:46,240 --> 00:04:48,540 Add Lustiger to the same update the number. 78 00:04:48,570 --> 00:04:50,740 How many times daily? 79 00:04:50,910 --> 00:04:51,720 My number. 80 00:04:53,020 --> 00:04:55,990 Is Nathi close to zero Deleware in the mud? 81 00:04:56,170 --> 00:04:57,500 As in articles two zero? 82 00:04:57,550 --> 00:04:58,270 What I will do. 83 00:04:58,510 --> 00:04:59,980 I will find the last digit. 84 00:05:00,790 --> 00:05:07,120 So end let's call it digit, which is number MAAD 10. 85 00:05:07,900 --> 00:05:09,790 So I will get the last digit. 86 00:05:10,630 --> 00:05:17,800 Now, after getting the last digit, I will add this digit to my variable some. 87 00:05:20,070 --> 00:05:22,680 And now we have to update our number. 88 00:05:23,100 --> 00:05:26,070 So number equals number by 10. 89 00:05:27,550 --> 00:05:28,450 And finally. 90 00:05:30,690 --> 00:05:32,840 We will see out some. 91 00:05:33,330 --> 00:05:35,670 So this is all that we have to do. 92 00:05:37,270 --> 00:05:37,520 OK. 93 00:05:38,620 --> 00:05:45,710 So, for example, let's take an example to the Valley of and is 123 OK? 94 00:05:46,480 --> 00:05:46,930 So. 95 00:05:49,520 --> 00:05:50,860 I am writing my output here. 96 00:05:54,000 --> 00:05:57,020 So initially, my variable sum equals zero. 97 00:05:57,510 --> 00:05:59,990 So check the condition is one quantity. 98 00:06:00,240 --> 00:06:01,110 It goes to zero. 99 00:06:01,350 --> 00:06:01,580 No. 100 00:06:02,160 --> 00:06:04,130 The condition is the condition is two. 101 00:06:04,230 --> 00:06:05,550 Number is not close to zero. 102 00:06:05,730 --> 00:06:06,630 You will come inside. 103 00:06:08,010 --> 00:06:10,260 And Bridget did this. 104 00:06:10,460 --> 00:06:14,390 Find out the last digit digit equals three. 105 00:06:15,590 --> 00:06:17,000 Now add this digit. 106 00:06:17,270 --> 00:06:18,590 The way the variable some. 107 00:06:19,040 --> 00:06:20,060 So some will become. 108 00:06:20,210 --> 00:06:20,570 Three. 109 00:06:21,500 --> 00:06:22,700 Now, update the number. 110 00:06:22,760 --> 00:06:24,350 Number equals number by ten. 111 00:06:24,740 --> 00:06:25,900 So a new number equals. 112 00:06:27,260 --> 00:06:28,670 Now check the condition again. 113 00:06:30,090 --> 00:06:33,450 So is will it close to zero? 114 00:06:34,470 --> 00:06:34,710 No. 115 00:06:34,800 --> 00:06:38,250 The condition is to it is not close to zero. 116 00:06:38,970 --> 00:06:40,260 You will come inside the loop. 117 00:06:42,130 --> 00:06:51,430 So any digital clues, no more than that as the last digit digit, it was to add a digit to some. 118 00:06:51,580 --> 00:06:56,830 So some will become three below store, which is five, upbraid the number. 119 00:06:57,070 --> 00:07:02,140 So number will become twelve by ten, which is when I would check the condition again. 120 00:07:03,690 --> 00:07:07,970 So is when articles two zero, the condition is true, you will come inside. 121 00:07:09,050 --> 00:07:09,250 OK. 122 00:07:09,350 --> 00:07:11,520 When is not close to zero, the condition is true. 123 00:07:11,620 --> 00:07:11,980 Yes. 124 00:07:12,050 --> 00:07:13,280 When it's not to close to zero. 125 00:07:13,940 --> 00:07:15,740 Find the last digit, which is one. 126 00:07:16,170 --> 00:07:17,740 Add this digit some. 127 00:07:18,350 --> 00:07:19,250 So some will become. 128 00:07:20,120 --> 00:07:21,230 Here it was five. 129 00:07:21,380 --> 00:07:23,660 So five plus one, which is six. 130 00:07:24,440 --> 00:07:27,620 So somebody becomes six and you have to update the number. 131 00:07:27,680 --> 00:07:31,940 So number equals number about ten, which is one by ten, which is zero. 132 00:07:32,790 --> 00:07:33,950 Now I will check the condition. 133 00:07:34,550 --> 00:07:37,250 So here zero is not close to zero. 134 00:07:37,940 --> 00:07:41,480 This condition is void because zero equals zero. 135 00:07:41,970 --> 00:07:43,300 OK, so this condition is false. 136 00:07:43,310 --> 00:07:48,770 You will come out of the loop of your loop, will terminated and you will print some, which is six 137 00:07:48,860 --> 00:07:49,940 and which is my output. 138 00:07:50,690 --> 00:07:51,740 So let us write the code. 139 00:07:52,520 --> 00:07:54,110 Then I will explain it one more time. 140 00:07:57,240 --> 00:07:58,890 So let us name this file as. 141 00:08:03,180 --> 00:08:06,330 Some of digits. 142 00:08:10,040 --> 00:08:10,960 Not CBP. 143 00:08:27,170 --> 00:08:29,720 Now, what I have to do, I will take a number. 144 00:08:31,030 --> 00:08:32,240 And Bert Fundi use it. 145 00:08:32,440 --> 00:08:34,950 So N10 seen. 146 00:08:35,560 --> 00:08:44,590 And now I will take a variable, some equals zero, which will finally contain the sum of digits. 147 00:08:45,640 --> 00:08:54,110 So while my number is not close to zero, what I have to do, I will find out the last Midgard. 148 00:08:55,290 --> 00:08:55,540 So. 149 00:08:56,280 --> 00:08:58,900 And let's call last. 150 00:09:00,780 --> 00:09:04,200 Digit, which is equal to number. 151 00:09:05,510 --> 00:09:06,680 Maude, 10. 152 00:09:06,870 --> 00:09:16,920 So I got the last budget and I have to add this digit to my variable sum, so some plus it goes to last 153 00:09:17,460 --> 00:09:18,000 digit. 154 00:09:18,870 --> 00:09:21,090 And now I have to update my number. 155 00:09:21,540 --> 00:09:27,450 So number equals number equals number by 10. 156 00:09:28,590 --> 00:09:32,230 And finally, my answer will be stored in variable some. 157 00:09:32,910 --> 00:09:36,510 So I will print out some. 158 00:09:37,710 --> 00:09:39,360 So this is all that we have to do. 159 00:09:41,860 --> 00:09:42,100 OK. 160 00:09:45,420 --> 00:09:46,800 So let us test our program. 161 00:09:49,470 --> 00:09:51,510 Layer to level value of is 123. 162 00:09:51,920 --> 00:09:53,270 So our approach would be six. 163 00:09:55,330 --> 00:09:57,490 No, test it one more time. 164 00:09:59,800 --> 00:10:02,280 Let's see, my number is 10. 165 00:10:03,150 --> 00:10:04,370 So outproduce when. 166 00:10:04,920 --> 00:10:05,110 OK. 167 00:10:05,280 --> 00:10:07,900 One plus you always won some accord is. 168 00:10:07,920 --> 00:10:08,610 Hundred percent. 169 00:10:08,640 --> 00:10:09,030 Correct. 170 00:10:09,750 --> 00:10:15,450 If you're having difficulty in understanding this condition, what you can also do here is you can write 171 00:10:16,530 --> 00:10:22,290 while my number is good than zero because we have to stop when number equals zero. 172 00:10:22,680 --> 00:10:26,610 So the numbers are good, then zero, you will be able to find out the last digit. 173 00:10:28,010 --> 00:10:33,030 OK, so this is also a condition you can also use that a condition if you are not able to understand 174 00:10:33,470 --> 00:10:34,280 previous condition. 175 00:10:36,250 --> 00:10:39,400 So let's say my number is 25, so output is seven. 176 00:10:41,030 --> 00:10:42,320 Now, let us test out. 177 00:10:42,470 --> 00:10:50,940 No, no, no, let us barran our program for any cause, let's say then when it goes down. 178 00:10:51,890 --> 00:10:55,060 So initially, some equals zero. 179 00:10:55,550 --> 00:10:58,460 Now a check is 10 Gurdon's zero. 180 00:10:58,580 --> 00:11:01,760 Yes, the condition is through last digit. 181 00:11:01,880 --> 00:11:05,990 So last digit will be no more than 10. 182 00:11:06,050 --> 00:11:08,270 So 10 more 10, which is zero. 183 00:11:09,920 --> 00:11:11,650 And this last digit to some. 184 00:11:12,700 --> 00:11:17,520 So some equals all the value of some plus lastra digit zero. 185 00:11:18,200 --> 00:11:21,610 Now update the numbers on the medical's number by then. 186 00:11:22,460 --> 00:11:28,000 So number equals all the value of number by ten, which is one. 187 00:11:28,830 --> 00:11:30,350 Now check the condition again. 188 00:11:30,920 --> 00:11:32,450 So one is better than zero. 189 00:11:33,170 --> 00:11:34,300 One is better than zero. 190 00:11:34,360 --> 00:11:35,600 Yes, the condition is true. 191 00:11:35,720 --> 00:11:38,120 You will go inside, find the last four digit. 192 00:11:39,300 --> 00:11:44,320 So last digit a close to one more. 193 00:11:44,540 --> 00:11:44,940 Ten. 194 00:11:45,050 --> 00:11:46,370 Which is when. 195 00:11:47,090 --> 00:11:51,140 And then you have to add this last digit to variable sum. 196 00:11:51,590 --> 00:11:57,110 So some equals all the value of some, which is zero plus last budget, which is one. 197 00:11:57,140 --> 00:11:58,340 So some equals one. 198 00:11:58,970 --> 00:12:00,680 Now you will update the number. 199 00:12:00,740 --> 00:12:06,900 So number equals number by ten, which is one by 10, zero point one, which is zero. 200 00:12:06,950 --> 00:12:09,480 Because in digit upon integer is in Indonesia. 201 00:12:10,310 --> 00:12:11,980 Now you will check the condition again. 202 00:12:13,370 --> 00:12:14,940 So is zero good. 203 00:12:14,990 --> 00:12:16,320 Then Enquist is zero good. 204 00:12:16,460 --> 00:12:16,850 Zero. 205 00:12:16,940 --> 00:12:18,740 No, the condition is false. 206 00:12:19,370 --> 00:12:23,690 Since the condition is false, our loop will terminate. 207 00:12:23,810 --> 00:12:26,950 And I will reach line number 17. 208 00:12:27,140 --> 00:12:28,400 So I will print some. 209 00:12:29,060 --> 00:12:30,940 So my sum is containing one. 210 00:12:31,760 --> 00:12:34,730 And output for this number should be one. 211 00:12:35,830 --> 00:12:39,460 Obviously, this is how our program is working. 212 00:12:41,140 --> 00:12:45,670 Initially, what happened is you will find difficult to understand all of these things. 213 00:12:46,300 --> 00:12:47,310 So how against. 214 00:12:47,630 --> 00:12:48,610 Understand these things. 215 00:12:48,640 --> 00:12:51,260 So the only ways they go to a pen and paper. 216 00:12:51,940 --> 00:12:52,250 Right. 217 00:12:52,270 --> 00:12:53,170 Hold on your own. 218 00:12:53,230 --> 00:12:55,390 Try to understand how things are working. 219 00:12:55,870 --> 00:12:59,740 And with a little more practice, you will be able to chorded yourself. 220 00:13:00,520 --> 00:13:02,230 I will be solving many such problems. 221 00:13:02,680 --> 00:13:04,090 So just to follow my approach. 222 00:13:04,120 --> 00:13:06,130 How I'm approaching these problems. 223 00:13:06,960 --> 00:13:07,230 OK. 224 00:13:07,600 --> 00:13:09,520 So initially, everyone faces difficulty. 225 00:13:09,580 --> 00:13:14,730 I also faced a difficulty when I first see how to find some digits. 226 00:13:15,640 --> 00:13:17,080 OK, so it's completely normal. 227 00:13:17,290 --> 00:13:18,550 If I'm facing difficulty. 228 00:13:19,120 --> 00:13:21,370 So if you have any doubt, feel free to ask. 229 00:13:21,580 --> 00:13:21,850 OK. 230 00:13:22,870 --> 00:13:23,340 Thank you.