1 00:00:03,150 --> 00:00:05,160 Hello, guys, and welcome back to the calls. 2 00:00:05,640 --> 00:00:08,800 In the last lesson, we covered three problems off part one. 3 00:00:09,150 --> 00:00:11,850 So to really be solving three problems of part two. 4 00:00:16,060 --> 00:00:17,050 So problem one. 5 00:00:20,820 --> 00:00:22,230 So the president's statement is. 6 00:00:23,540 --> 00:00:24,740 Read in numbers. 7 00:00:28,480 --> 00:00:33,370 And bringing to their average Brent, their average. 8 00:00:35,040 --> 00:00:39,930 So if you remember, we have already covered the simple version of this problem. 9 00:00:40,440 --> 00:00:45,690 The problem statement was we have to read five numbers and we have to print their average. 10 00:00:46,230 --> 00:00:48,330 And the flowchart was something like this. 11 00:00:48,900 --> 00:00:57,600 We start our program and then we read five numbers, read A, B, C, D and E. 12 00:00:58,900 --> 00:01:07,090 These are five numbers, and then I have to calculate some, which is summation of all these numbers. 13 00:01:09,620 --> 00:01:15,660 And then I have to conclude my average, which is equals to some by five. 14 00:01:17,300 --> 00:01:17,960 And then. 15 00:01:19,660 --> 00:01:20,780 I will print average. 16 00:01:21,760 --> 00:01:23,990 After printing average, my work is over. 17 00:01:24,370 --> 00:01:26,380 And then I will end my program. 18 00:01:28,360 --> 00:01:33,400 So this is the simpler version of this problem that we have already covered. 19 00:01:33,820 --> 00:01:37,690 So what is the difference between this problem and this problem? 20 00:01:38,320 --> 00:01:41,530 So the defense is very clear in this problem. 21 00:01:41,740 --> 00:01:47,110 I already know that I have to read five numbers, so I make five variables. 22 00:01:47,170 --> 00:01:48,290 ABC d e. 23 00:01:48,850 --> 00:01:50,260 But then this problem. 24 00:01:50,410 --> 00:01:51,400 I don't know. 25 00:01:51,490 --> 00:01:53,350 How many variables do I have to make? 26 00:01:53,800 --> 00:01:57,820 I don't know the value of and value of and will be given by user. 27 00:01:58,360 --> 00:02:01,660 So I don't know how many variables do I have to make. 28 00:02:02,350 --> 00:02:06,130 So our first problem is to how to read and numbers. 29 00:02:07,850 --> 00:02:10,940 How do read and numbers? 30 00:02:12,030 --> 00:02:15,450 So this is our first problem, how to read and numbers. 31 00:02:16,200 --> 00:02:17,190 So what will I do? 32 00:02:17,730 --> 00:02:20,460 I will run a loop and times. 33 00:02:23,250 --> 00:02:29,730 I will run a loop and times and each time I will read no, read no. 34 00:02:31,080 --> 00:02:36,370 So in total, this loop is learning and times and each time I am reading a number. 35 00:02:36,730 --> 00:02:39,130 So in total I will be reading in numbers. 36 00:02:41,850 --> 00:02:44,940 So our first problem is a lot of reading and numbers. 37 00:02:45,210 --> 00:02:47,700 OK, so how we learn loop and times. 38 00:02:49,200 --> 00:02:50,460 So the answer is very simple. 39 00:02:50,520 --> 00:02:52,230 I will use these two condition. 40 00:02:52,830 --> 00:02:56,190 I was one I less than or equal to N. 41 00:02:57,900 --> 00:02:59,820 And I it was a plus one. 42 00:03:00,450 --> 00:03:07,230 So using these three blogs, I will be able to run a loop and times and each time I will do that number. 43 00:03:07,710 --> 00:03:11,220 So in total, I will be able to read and numbers. 44 00:03:13,290 --> 00:03:16,260 So the first problem is, oh, we're operating in numbers. 45 00:03:16,380 --> 00:03:19,280 Now, the second problem I have to calculate average. 46 00:03:20,070 --> 00:03:24,060 So average equals to some of. 47 00:03:25,660 --> 00:03:27,840 All these numbers. 48 00:03:30,060 --> 00:03:31,050 Some of all this. 49 00:03:31,130 --> 00:03:33,840 And numbers, why did why? 50 00:03:33,910 --> 00:03:37,980 And so I know the really often which will be given by user. 51 00:03:38,370 --> 00:03:42,330 I have to convert this part some of all these numbers. 52 00:03:42,840 --> 00:03:43,650 So what will I do? 53 00:03:43,740 --> 00:03:45,040 I will use a variable sum. 54 00:03:45,690 --> 00:03:47,700 Initially, my son will be zero. 55 00:03:48,180 --> 00:03:52,410 And when I am reading my name, but I will add this number to the current sum. 56 00:03:52,860 --> 00:03:54,720 That is some equals. 57 00:03:54,960 --> 00:03:55,950 Some bliss number. 58 00:03:57,790 --> 00:03:58,210 So rude. 59 00:03:58,300 --> 00:04:01,170 No, at this number two, the current system. 60 00:04:01,750 --> 00:04:02,470 So when this loop. 61 00:04:02,500 --> 00:04:03,220 Wait a minute. 62 00:04:03,350 --> 00:04:07,230 That is after running and times in my variable sum. 63 00:04:07,600 --> 00:04:13,780 I will be having some of all these numbers and then I will easily calculate the value of average. 64 00:04:13,810 --> 00:04:15,130 And then I will point average. 65 00:04:15,630 --> 00:04:15,920 OK. 66 00:04:16,240 --> 00:04:17,950 So let's roll the flow chart. 67 00:04:21,350 --> 00:04:22,100 So start. 68 00:04:24,620 --> 00:04:26,750 And then I have duded and. 69 00:04:32,680 --> 00:04:39,220 And then I will take a variable eye, which is initialized to win because I want to add an eye loop 70 00:04:39,280 --> 00:04:43,240 and Pym's and my sum will be initially zero. 71 00:04:46,250 --> 00:04:50,990 Now we'll check the condition is I left the Noriko's to end. 72 00:04:52,280 --> 00:04:53,780 So if this condition is true. 73 00:04:56,040 --> 00:04:57,450 Now I'm inside the loop. 74 00:04:57,660 --> 00:04:58,290 What will I do? 75 00:04:58,380 --> 00:05:00,810 I will read no you the number. 76 00:05:05,410 --> 00:05:09,370 And after reading this number, I will add this number to my current sum. 77 00:05:10,000 --> 00:05:16,610 So the new value of some equals over the value of some, bless the number that I have read. 78 00:05:21,560 --> 00:05:26,960 I close, I listen because I want to run this loop and times. 79 00:05:27,500 --> 00:05:31,370 So this loop villain and times each time I am reading a number. 80 00:05:31,610 --> 00:05:35,150 And after reading that number, I'm adding this number to the current sum. 81 00:05:36,200 --> 00:05:38,630 So when this condition will become false. 82 00:05:45,000 --> 00:05:49,680 So my average will be some divided by and. 83 00:05:51,470 --> 00:05:59,430 Sam is storing some of all those numbers, and after calculating average, I will print average. 84 00:06:01,350 --> 00:06:02,640 Now my work is over. 85 00:06:03,030 --> 00:06:04,470 I will end my program. 86 00:06:06,140 --> 00:06:06,530 And. 87 00:06:16,870 --> 00:06:25,120 OK, so let us take an example, let's say the really off and is three and the numbers are one, two 88 00:06:25,240 --> 00:06:27,640 and three, so numbers are 120. 89 00:06:27,860 --> 00:06:29,930 And I'm having total TNM was. 90 00:06:30,320 --> 00:06:31,280 So what is the average? 91 00:06:32,260 --> 00:06:34,580 One plus two plus three. 92 00:06:34,920 --> 00:06:37,640 All elevated wady letters to. 93 00:06:38,810 --> 00:06:41,400 Okay, so I started my program. 94 00:06:41,950 --> 00:06:46,240 I read in an enclosed tree, I close one semigloss zero. 95 00:06:46,880 --> 00:06:52,140 So I it was when some equals zero. 96 00:06:53,420 --> 00:06:54,920 And then I will come here. 97 00:06:57,160 --> 00:06:59,770 Is one less to know, note goes to three. 98 00:07:00,160 --> 00:07:00,670 Yes. 99 00:07:01,030 --> 00:07:01,570 Come here. 100 00:07:02,390 --> 00:07:03,160 Read a number. 101 00:07:03,670 --> 00:07:04,600 OK, read one. 102 00:07:07,120 --> 00:07:08,650 Add this number to the current sum. 103 00:07:09,550 --> 00:07:13,330 So sum, it was zero plus one that this one. 104 00:07:14,500 --> 00:07:14,860 OK. 105 00:07:16,980 --> 00:07:18,240 I equals I plus one. 106 00:07:18,270 --> 00:07:19,740 So the new radio fi is. 107 00:07:21,160 --> 00:07:21,970 All vilify. 108 00:07:22,440 --> 00:07:24,730 Which is one plus one that this, too. 109 00:07:25,530 --> 00:07:28,860 So new if I is to and then you have to come here. 110 00:07:30,940 --> 00:07:32,810 Is to list the Noriko's two three. 111 00:07:32,860 --> 00:07:34,840 So the condition is again through, you will come here? 112 00:07:35,590 --> 00:07:36,000 No. 113 00:07:36,580 --> 00:07:38,590 This time I will do so. 114 00:07:38,830 --> 00:07:42,870 The new valy of some will be all will leave some place. 115 00:07:43,060 --> 00:07:44,370 That number that you have read. 116 00:07:45,460 --> 00:07:46,810 One to two. 117 00:07:47,220 --> 00:07:47,680 Destry. 118 00:07:48,510 --> 00:07:48,740 OK. 119 00:07:48,820 --> 00:07:52,140 Now you will come here and given really if I buy one. 120 00:07:52,750 --> 00:07:55,390 So the new value of fi will be two plus one. 121 00:07:55,440 --> 00:07:56,260 That is three. 122 00:07:57,860 --> 00:08:02,040 Jack Deconditioned again is three, Lester goes to three. 123 00:08:02,480 --> 00:08:04,670 So the condition is again through, you will again come here. 124 00:08:05,960 --> 00:08:06,230 Greed. 125 00:08:06,450 --> 00:08:08,220 Number three. 126 00:08:09,000 --> 00:08:09,960 Some equals. 127 00:08:11,160 --> 00:08:13,640 All three of them, plus the number that you have read. 128 00:08:14,250 --> 00:08:16,450 So three plus three letters. 129 00:08:16,830 --> 00:08:19,260 Six in commander commendably if I buy one. 130 00:08:19,620 --> 00:08:23,010 So the new vilify is always lo fi. 131 00:08:24,140 --> 00:08:27,010 Which is three plus one at this food. 132 00:08:27,820 --> 00:08:28,930 Check the condition again. 133 00:08:30,640 --> 00:08:35,050 As for less tornadoes, two, three, no, so a condition is false. 134 00:08:35,680 --> 00:08:38,210 And this loop will break again. 135 00:08:38,410 --> 00:08:45,320 So average equals some, which is close to six divided by N and is three. 136 00:08:46,030 --> 00:08:47,790 So my averages do. 137 00:08:48,490 --> 00:08:50,050 And then you will bring to an average. 138 00:08:51,690 --> 00:08:52,830 So, too, will be printed. 139 00:08:53,100 --> 00:08:59,670 And you will endure program so for this do, which is hundred percent correct. 140 00:09:00,390 --> 00:09:01,410 Okay, so. 141 00:09:07,160 --> 00:09:13,670 Let us revise what we have done, so I have to read in numbers, and I would do bring average. 142 00:09:14,540 --> 00:09:18,920 We have already done a simple evasion of this problem and that problem. 143 00:09:18,980 --> 00:09:23,450 I have read this five numbers and I have to bring the average of those five numbers. 144 00:09:23,780 --> 00:09:28,160 So what I did, I tried my program, I read five numbers. 145 00:09:28,250 --> 00:09:29,420 I make five variables. 146 00:09:29,750 --> 00:09:32,570 And I take the values of those five numbers. 147 00:09:32,600 --> 00:09:33,800 Then I concluded some. 148 00:09:34,160 --> 00:09:37,220 Then I concluded average print average and end my program. 149 00:09:37,790 --> 00:09:42,290 But the first problem of discussion is how I will read in them was. 150 00:09:43,710 --> 00:09:49,920 I can't make any variables because I don't know the value of an the value of and we beg you and my user. 151 00:09:50,490 --> 00:09:55,830 So this is very straightforward that I cannot make any variables because I don't know the value of an. 152 00:09:56,980 --> 00:09:58,930 So what we will do. 153 00:09:59,020 --> 00:10:03,400 We will run a loop and times is using these three blocks. 154 00:10:03,910 --> 00:10:08,620 I will be able to run my loop and times and each time I will read that number. 155 00:10:09,130 --> 00:10:11,890 So in total, I will be able to read and numbers. 156 00:10:12,910 --> 00:10:14,490 OK, so first problem is over. 157 00:10:15,340 --> 00:10:16,940 Now let's see that problem. 158 00:10:17,050 --> 00:10:18,190 I have to print that average. 159 00:10:19,810 --> 00:10:26,470 For calculating the average, I read some of these numbers for calculating some. 160 00:10:26,560 --> 00:10:28,870 What will I do when I am reading the number? 161 00:10:29,020 --> 00:10:31,060 I will add this number to the current sum. 162 00:10:33,160 --> 00:10:39,910 So the new value of some goes to or value of some plus the number that I have read. 163 00:10:42,250 --> 00:10:46,380 And then when this loop will terminate, when this loop. 164 00:10:46,470 --> 00:10:47,170 Wait a minute. 165 00:10:47,350 --> 00:10:50,110 That is after this loop at an end times. 166 00:10:50,560 --> 00:10:58,660 My variable sum will be storing the sum of all these numbers and then I will calculate my average using 167 00:10:58,660 --> 00:10:59,290 this formula. 168 00:10:59,910 --> 00:11:00,060 OK. 169 00:11:00,260 --> 00:11:00,640 So. 170 00:11:02,710 --> 00:11:04,080 Let's look at the flow chart. 171 00:11:04,320 --> 00:11:07,990 Okay, let's take another example, let's say any equals. 172 00:11:09,490 --> 00:11:11,040 Two, and then the Mossad. 173 00:11:12,490 --> 00:11:16,750 Four and six, so averages four plus six. 174 00:11:17,410 --> 00:11:18,670 By doing that, it's five. 175 00:11:19,240 --> 00:11:23,770 OK, so start with you then I equals one time it goes zero. 176 00:11:24,130 --> 00:11:25,570 So I equals one. 177 00:11:26,290 --> 00:11:28,090 Some equals zero. 178 00:11:28,540 --> 00:11:29,020 Come here. 179 00:11:30,640 --> 00:11:33,580 Is one less than already close to two. 180 00:11:33,850 --> 00:11:35,080 So the condition is true. 181 00:11:35,710 --> 00:11:36,130 Yes. 182 00:11:36,640 --> 00:11:37,090 Come here. 183 00:11:37,200 --> 00:11:37,410 Rude. 184 00:11:37,480 --> 00:11:42,180 No, I will read for them here at this number. 185 00:11:42,230 --> 00:11:42,940 The current sum. 186 00:11:44,440 --> 00:11:47,020 So some equals zero plus four letters, four. 187 00:11:47,560 --> 00:11:47,870 Okay. 188 00:11:48,370 --> 00:11:50,530 Come here and go under. 189 00:11:50,610 --> 00:11:58,060 If I, I went to the new Bailey, if I will be to check the condition again is to list Donna goes to 190 00:11:58,060 --> 00:11:59,770 do for the condition is true. 191 00:12:00,670 --> 00:12:01,090 Yes. 192 00:12:01,460 --> 00:12:01,730 No. 193 00:12:02,500 --> 00:12:04,230 This time I will read six. 194 00:12:05,200 --> 00:12:06,700 Add this number to the current sum. 195 00:12:07,540 --> 00:12:11,350 So sum equals four plus six. 196 00:12:11,440 --> 00:12:12,190 That is 10. 197 00:12:13,220 --> 00:12:14,800 And given the value if I buy one. 198 00:12:16,450 --> 00:12:16,930 So I. 199 00:12:16,930 --> 00:12:18,240 It goes to bless one. 200 00:12:18,340 --> 00:12:19,150 That is three. 201 00:12:20,050 --> 00:12:22,710 Check the condition again is three less. 202 00:12:22,780 --> 00:12:23,750 Then I go straight to. 203 00:12:26,080 --> 00:12:26,390 No. 204 00:12:26,540 --> 00:12:27,640 The condition is false. 205 00:12:27,670 --> 00:12:28,650 So you will come here. 206 00:12:30,080 --> 00:12:30,300 OK. 207 00:12:30,380 --> 00:12:37,370 Calculate the average average equals sum divided away and add the value of. 208 00:12:37,400 --> 00:12:38,540 And is to. 209 00:12:40,050 --> 00:12:43,800 So average equals five, then Brint average. 210 00:12:43,890 --> 00:12:48,100 OK, five for Lubricator and then endure program. 211 00:12:48,660 --> 00:12:53,220 So I am burning five and average of four and six is five. 212 00:12:53,790 --> 00:12:56,340 So I went flowcharts hundred percent. 213 00:12:56,550 --> 00:12:56,920 Correct. 214 00:12:57,950 --> 00:12:58,590 Like, that's all. 215 00:12:58,620 --> 00:12:59,340 And the problem.