1 00:00:01,280 --> 00:00:03,110 Hey, guys, what's up? 2 00:00:03,800 --> 00:00:07,880 So in this session, we will learn a new concept called Loop. 3 00:00:09,760 --> 00:00:14,020 So if you remember, we have done Leupen flowchart and pseudocode. 4 00:00:15,130 --> 00:00:15,380 OK. 5 00:00:15,760 --> 00:00:19,000 So this loop is exactly the same that we have done. 6 00:00:19,840 --> 00:00:24,490 So I am just we are doing a quick recap of how a loop work. 7 00:00:25,060 --> 00:00:28,920 So first of all, I was having an initialization first. 8 00:00:29,170 --> 00:00:30,180 We will initialize. 9 00:00:31,600 --> 00:00:33,700 Then I will have a condition. 10 00:00:35,900 --> 00:00:38,010 If this condition is true. 11 00:00:38,690 --> 00:00:42,830 So if this condition is true, then I will do some work. 12 00:00:44,270 --> 00:00:48,440 If this condition is true, I will do some work and then I will update. 13 00:00:51,090 --> 00:00:54,670 Then I will update and then after updating. 14 00:00:54,840 --> 00:00:59,700 I will check the condition again if the condition is again through. 15 00:01:00,030 --> 00:01:01,550 I will again do some work. 16 00:01:03,120 --> 00:01:10,120 And then I will update again, again, I will check the condition, but if condition is false. 17 00:01:10,290 --> 00:01:13,990 So if the condition is false, I will come out of the loop. 18 00:01:14,450 --> 00:01:17,100 So come out of the loop. 19 00:01:18,540 --> 00:01:21,960 So this is how a loop looks. 20 00:01:23,120 --> 00:01:24,710 OK, now let's see. 21 00:01:26,340 --> 00:01:34,080 So, for example, our task is to print hello five times. 22 00:01:35,580 --> 00:01:37,650 I want to print halloo five times. 23 00:01:37,920 --> 00:01:41,180 So what I can do is I can write Seo Tolu. 24 00:01:43,400 --> 00:01:45,170 And I will write it five times. 25 00:01:45,260 --> 00:01:45,880 So see out. 26 00:01:46,050 --> 00:01:46,430 Hello. 27 00:01:48,140 --> 00:01:48,760 So now. 28 00:01:49,310 --> 00:01:49,600 Hello. 29 00:01:49,680 --> 00:01:51,230 We printed five times. 30 00:01:51,590 --> 00:01:51,860 OK. 31 00:01:53,720 --> 00:01:56,340 I will just copy paste this line four more times. 32 00:01:57,440 --> 00:02:00,170 So in total, HelloWallet printer five times. 33 00:02:01,490 --> 00:02:05,360 But my task is to printed 500 times. 34 00:02:06,800 --> 00:02:07,840 So we have to right? 35 00:02:08,090 --> 00:02:11,980 We have to compete for 99 times to make it 500. 36 00:02:13,040 --> 00:02:14,080 Now I'm saying it. 37 00:02:14,180 --> 00:02:16,550 You have to print hello one million times. 38 00:02:18,530 --> 00:02:25,570 So obviously, by this time you might have noticed that this approach is very inefficient and time consuming. 39 00:02:26,630 --> 00:02:28,940 So what we can use, we can use a loop. 40 00:02:30,230 --> 00:02:31,190 So what will I do? 41 00:02:31,520 --> 00:02:35,510 I will say, hey, Lupe ran 500 times. 42 00:02:37,230 --> 00:02:42,290 Loop run 500 times, and each time this loop is running, I will bring telo. 43 00:02:44,480 --> 00:02:48,170 So this loop is running 500 times, and each time I am bending. 44 00:02:48,320 --> 00:02:48,800 Hello. 45 00:02:49,100 --> 00:02:49,550 So hello. 46 00:02:49,550 --> 00:02:51,680 Will be printed five hundred times. 47 00:02:54,150 --> 00:02:55,810 OK, so let's see. 48 00:02:57,350 --> 00:03:00,590 So if you remember in pseudocode, I was having. 49 00:03:01,650 --> 00:03:02,520 Via loop. 50 00:03:05,800 --> 00:03:08,150 So here we are also having while loop. 51 00:03:09,130 --> 00:03:12,460 So how does a code of why Loop looks like. 52 00:03:12,880 --> 00:03:14,350 So let's take a variable. 53 00:03:14,530 --> 00:03:15,990 I saw in time equals one. 54 00:03:16,150 --> 00:03:17,650 This is my initialization. 55 00:03:18,580 --> 00:03:21,290 While some condition will be there. 56 00:03:24,040 --> 00:03:26,260 And then some oblation will be. 57 00:03:28,560 --> 00:03:31,450 And here I will do my work that I want to do. 58 00:03:34,580 --> 00:03:35,300 So let's see. 59 00:03:36,050 --> 00:03:37,270 So let us spend hello. 60 00:03:37,420 --> 00:03:38,480 500 times. 61 00:03:40,680 --> 00:03:42,120 So I'm making a new file. 62 00:03:44,300 --> 00:03:45,870 Leard Snam, This Fire Les. 63 00:03:47,310 --> 00:03:47,940 While. 64 00:03:49,880 --> 00:03:51,330 Not CBB. 65 00:03:52,610 --> 00:03:52,930 OK. 66 00:04:23,550 --> 00:04:28,140 OK, so what we want to do is I want to print hello 500 times. 67 00:04:29,960 --> 00:04:34,610 So, OK, so let's first of all, print hello five times. 68 00:04:34,700 --> 00:04:36,170 So N.T. equals one. 69 00:04:37,700 --> 00:04:39,370 So this was my initialization. 70 00:04:39,410 --> 00:04:40,940 Now I will check the condition. 71 00:04:40,970 --> 00:04:43,890 So while vial is a key word here. 72 00:04:44,120 --> 00:04:44,390 OK. 73 00:04:44,780 --> 00:04:47,720 So while I lasdun articles two five. 74 00:04:50,430 --> 00:04:56,700 And I will update here a plus plus a plus plus means increment of a little five by one, it is same 75 00:04:56,700 --> 00:04:59,010 as I equals a plus one. 76 00:04:59,670 --> 00:05:02,820 Now each time this loop is learning, I have to print. 77 00:05:03,420 --> 00:05:03,810 Hello. 78 00:05:03,870 --> 00:05:04,560 So see you out. 79 00:05:06,150 --> 00:05:06,480 Hello. 80 00:05:11,110 --> 00:05:12,880 So this is all that we have to do. 81 00:05:13,570 --> 00:05:14,980 So let's put in our program. 82 00:05:17,370 --> 00:05:18,450 So we'll see out. 83 00:05:19,030 --> 00:05:20,610 Hello and Lane. 84 00:05:21,480 --> 00:05:22,300 So what is the error? 85 00:05:33,350 --> 00:05:34,150 OK, so. 86 00:05:35,830 --> 00:05:38,300 Analyze this. 87 00:05:39,170 --> 00:05:40,340 Now let us earn it again. 88 00:05:44,010 --> 00:05:47,100 So as you can see, Helo's printed five times. 89 00:05:47,820 --> 00:05:50,400 Now let's see how it is working. 90 00:05:52,290 --> 00:05:55,140 So first of all, this is my initialization. 91 00:05:56,100 --> 00:05:58,140 So this is initialization. 92 00:05:58,470 --> 00:05:59,670 First part of the loop. 93 00:06:02,250 --> 00:06:03,750 This is my condition. 94 00:06:03,780 --> 00:06:05,520 I list an order close to five. 95 00:06:05,730 --> 00:06:06,870 This is my condition. 96 00:06:08,100 --> 00:06:10,040 And this is my oblate. 97 00:06:12,420 --> 00:06:12,660 OK. 98 00:06:13,030 --> 00:06:15,790 So all three combatants of a loop are present. 99 00:06:16,830 --> 00:06:18,750 So how many times this little building. 100 00:06:19,440 --> 00:06:27,220 So initially I was when and in the condition I am checking while I left, then we're close to five. 101 00:06:28,080 --> 00:06:29,280 So this is my condition. 102 00:06:30,000 --> 00:06:34,110 And each time I am incrementing the value of I buy one. 103 00:06:34,890 --> 00:06:37,470 So this means I equals a plus one. 104 00:06:37,920 --> 00:06:39,870 This is just another way of writing. 105 00:06:40,020 --> 00:06:41,280 I quote I plus one. 106 00:06:42,070 --> 00:06:42,310 OK. 107 00:06:42,600 --> 00:06:44,490 So initially the value of fi is one. 108 00:06:44,730 --> 00:06:47,760 And each time I am incrementing the value if I buy one. 109 00:06:48,150 --> 00:06:50,430 And this low in this condition. 110 00:06:50,640 --> 00:06:54,150 So with the help of these three, my loop will run five times. 111 00:06:55,970 --> 00:06:56,230 OK. 112 00:06:58,080 --> 00:07:03,610 Initially, the value of fire is one each time the slope is running, I am incrementing the value of 113 00:07:03,610 --> 00:07:04,440 fire by one. 114 00:07:04,770 --> 00:07:07,500 And my condition is I list in order close to five. 115 00:07:07,620 --> 00:07:10,170 So in total, this loop will run five times. 116 00:07:10,500 --> 00:07:13,350 And each time this loop is running, I am printing. 117 00:07:13,500 --> 00:07:14,040 Hello. 118 00:07:14,880 --> 00:07:18,210 So in total, hello will be Brendel 500 times. 119 00:07:20,190 --> 00:07:26,440 OK, so what if I remove it close to a list in five? 120 00:07:26,560 --> 00:07:27,370 How many times? 121 00:07:27,430 --> 00:07:28,540 Now this loop will run. 122 00:07:29,320 --> 00:07:32,170 So this loop will run four times. 123 00:07:32,770 --> 00:07:33,280 Let's see. 124 00:07:36,570 --> 00:07:40,110 So Hillary is getting printed four times by. 125 00:07:47,030 --> 00:07:50,960 So when the value of AI is when this condition is true. 126 00:07:51,060 --> 00:07:51,950 Hello teleprinter. 127 00:07:52,070 --> 00:07:57,710 So when when I equals two to this condition will again do so. 128 00:07:57,740 --> 00:07:57,940 Hello. 129 00:07:57,950 --> 00:07:58,490 Blueprinted. 130 00:07:58,580 --> 00:08:01,460 Two times when I was three. 131 00:08:01,760 --> 00:08:03,620 This condition is again to trace. 132 00:08:03,770 --> 00:08:04,490 Less than five. 133 00:08:04,760 --> 00:08:05,230 So hello. 134 00:08:05,230 --> 00:08:06,200 Ilive rendered again. 135 00:08:06,290 --> 00:08:07,010 So three times. 136 00:08:07,010 --> 00:08:07,310 Hello. 137 00:08:07,760 --> 00:08:10,970 When I equals four four it is less than five. 138 00:08:11,030 --> 00:08:12,650 This condition is again true. 139 00:08:13,000 --> 00:08:14,630 Harrowingly brain dead one more time. 140 00:08:14,690 --> 00:08:15,650 So lower spending. 141 00:08:15,710 --> 00:08:19,370 Hello is getting rendered four times when I equals five. 142 00:08:19,460 --> 00:08:25,190 This condition will become false because five is not less than five. 143 00:08:25,460 --> 00:08:26,090 This is wrong. 144 00:08:26,540 --> 00:08:31,400 So this condition will become false and I will reach line number 14. 145 00:08:33,090 --> 00:08:35,860 OK, so hello, loop under four times. 146 00:08:39,760 --> 00:08:42,040 Now, let's take one more example. 147 00:08:44,350 --> 00:08:45,400 So suppose. 148 00:08:48,040 --> 00:08:51,540 Now, if I want to print hello 500 times. 149 00:08:52,000 --> 00:08:55,180 So the only change that I have to do, I will right here. 150 00:08:55,410 --> 00:08:58,060 500 or let's say five thousand. 151 00:08:58,200 --> 00:08:59,140 Fifty thousand. 152 00:09:00,270 --> 00:09:00,530 OK. 153 00:09:00,830 --> 00:09:03,250 So this is the benefit of the loop. 154 00:09:03,730 --> 00:09:05,080 This is the advantage of a loop. 155 00:09:05,920 --> 00:09:06,550 So listen. 156 00:09:09,410 --> 00:09:13,880 So as you can see, our program is running five thousand times. 157 00:09:18,100 --> 00:09:23,110 Now, let's see one more thing, how this halloo is getting printed. 158 00:09:23,260 --> 00:09:24,100 Five things. 159 00:09:27,500 --> 00:09:33,110 So my code is very simple and I equals one. 160 00:09:34,510 --> 00:09:43,040 While I is less than or equal to five, I am printing hello. 161 00:09:45,950 --> 00:09:49,570 And then I am incrementing to vilify my one. 162 00:09:51,530 --> 00:09:53,330 So let's say, hey, is my output. 163 00:09:57,920 --> 00:09:58,910 So this is my output. 164 00:09:59,510 --> 00:10:01,850 So initially the value of AI is one. 165 00:10:02,510 --> 00:10:04,700 OK, so AI is one. 166 00:10:05,440 --> 00:10:08,290 The condition is one less 10 articles to five. 167 00:10:09,700 --> 00:10:11,510 Is one less than or close to five? 168 00:10:11,570 --> 00:10:12,700 Yes, the condition is true. 169 00:10:12,940 --> 00:10:14,320 You will come inside the loop. 170 00:10:15,340 --> 00:10:15,960 You will print. 171 00:10:16,000 --> 00:10:16,300 Hello. 172 00:10:16,570 --> 00:10:17,770 So in my output. 173 00:10:17,950 --> 00:10:18,220 Hello. 174 00:10:18,220 --> 00:10:19,300 Is getting printed. 175 00:10:20,440 --> 00:10:22,700 Then you add incrementing the value if I buy one. 176 00:10:23,140 --> 00:10:28,600 So the new value if I will become to and from this broker to you will again reach here. 177 00:10:29,680 --> 00:10:34,360 Now you will check the condition again is to less than or equal to five. 178 00:10:34,700 --> 00:10:36,010 Yes, the condition is true. 179 00:10:36,220 --> 00:10:37,120 You will again print. 180 00:10:37,240 --> 00:10:37,990 Hello sir. 181 00:10:38,170 --> 00:10:38,590 Hello. 182 00:10:38,800 --> 00:10:39,970 Will be printed again. 183 00:10:40,600 --> 00:10:42,640 Now you will increase the value if I buy one. 184 00:10:42,670 --> 00:10:44,910 So a new value of fly is three. 185 00:10:45,640 --> 00:10:49,180 Now you will again check the condition. 186 00:10:49,780 --> 00:10:52,030 So is three list in order close to five. 187 00:10:52,120 --> 00:10:53,410 Yes, the condition is true. 188 00:10:53,680 --> 00:10:56,260 So will you will come inside and you will print. 189 00:10:56,590 --> 00:10:56,890 Hello. 190 00:10:57,270 --> 00:10:57,700 So hello. 191 00:10:57,700 --> 00:10:59,650 Is getting printed one more time. 192 00:11:00,130 --> 00:11:02,440 And now you will increase the value of I buy one. 193 00:11:02,470 --> 00:11:04,360 So the new value of five is No. 194 00:11:04,930 --> 00:11:05,280 Four. 195 00:11:05,930 --> 00:11:09,960 Now you will again reach here and you will check the condition again. 196 00:11:10,600 --> 00:11:13,960 So is for less than not close to five years. 197 00:11:14,110 --> 00:11:16,080 The condition is again true. 198 00:11:16,390 --> 00:11:17,800 You will print hello again. 199 00:11:18,150 --> 00:11:20,320 So hello will be printed again. 200 00:11:20,860 --> 00:11:25,630 Now you will increase the value of I by one to the new value of I will become forward. 201 00:11:26,020 --> 00:11:28,510 Now you will check the condition again. 202 00:11:29,140 --> 00:11:32,170 So is five less than articles to five. 203 00:11:32,470 --> 00:11:35,290 Yes, five is less than articles to five. 204 00:11:35,650 --> 00:11:37,150 So welcome Inside the Loop. 205 00:11:37,180 --> 00:11:37,960 And you will print. 206 00:11:38,010 --> 00:11:38,380 Hello. 207 00:11:38,800 --> 00:11:40,300 So hello is getting Brender. 208 00:11:40,390 --> 00:11:41,320 One more time. 209 00:11:41,680 --> 00:11:43,900 And then you will increase the value of I. 210 00:11:44,530 --> 00:11:45,050 So I. 211 00:11:45,070 --> 00:11:46,450 It was six. 212 00:11:46,870 --> 00:11:48,930 Now you will check the condition again. 213 00:11:49,210 --> 00:11:50,500 So is six. 214 00:11:50,520 --> 00:11:52,090 Less than Orchestre five. 215 00:11:52,240 --> 00:11:52,660 No. 216 00:11:53,020 --> 00:11:57,210 So this condition will become fallers when I. 217 00:11:57,240 --> 00:11:58,330 Becomes six. 218 00:11:58,990 --> 00:12:02,530 So since this condition is false, I will not go inside the loop. 219 00:12:03,220 --> 00:12:04,990 I will reach at this line. 220 00:12:06,280 --> 00:12:06,540 OK. 221 00:12:06,850 --> 00:12:08,020 And this is my output. 222 00:12:08,410 --> 00:12:08,680 Hello. 223 00:12:08,680 --> 00:12:11,340 Is getting printed five times. 224 00:12:12,520 --> 00:12:12,740 OK. 225 00:12:13,090 --> 00:12:15,010 So this is how a loop works. 226 00:12:15,730 --> 00:12:19,300 Now let me tell you the concept of infinite loop. 227 00:12:19,840 --> 00:12:20,030 OK. 228 00:12:20,080 --> 00:12:22,550 So what if I remove this update condition? 229 00:12:23,620 --> 00:12:26,260 What will happen if I remove the subject condition? 230 00:12:27,730 --> 00:12:28,420 So let's see. 231 00:12:32,910 --> 00:12:40,440 So you can see hello is getting printed in finite times, so this loop will never stop. 232 00:12:42,060 --> 00:12:43,680 This loop will never stop. 233 00:12:43,710 --> 00:12:45,210 It will keep on executing. 234 00:12:45,860 --> 00:12:49,440 So why this helo is getting printed infinite number of times. 235 00:12:50,480 --> 00:12:55,820 So let us try to understand why it is so OK, so this will not stop. 236 00:12:55,880 --> 00:12:57,920 You have to stop it from here. 237 00:12:59,430 --> 00:13:01,890 Now, let's see what is happening in. 238 00:13:08,630 --> 00:13:10,830 So our record is in question. 239 00:13:12,620 --> 00:13:20,160 While I is less than or equal to five, then you are printing hello here. 240 00:13:22,940 --> 00:13:28,140 And then we have commandeered this line I E-Plus plus. 241 00:13:29,150 --> 00:13:30,320 So let's see what happens. 242 00:13:31,160 --> 00:13:32,480 So here is my output. 243 00:13:34,850 --> 00:13:36,910 First of all, I will check my equation. 244 00:13:36,980 --> 00:13:37,210 OK. 245 00:13:37,280 --> 00:13:38,510 So I equals one. 246 00:13:38,840 --> 00:13:41,990 Now I will check every condition is one less than close to five. 247 00:13:42,050 --> 00:13:42,260 Yes. 248 00:13:42,260 --> 00:13:44,510 The condition is to go inside the loop. 249 00:13:44,570 --> 00:13:44,840 Brent. 250 00:13:44,840 --> 00:13:45,170 Hello. 251 00:13:46,280 --> 00:13:46,520 OK. 252 00:13:46,580 --> 00:13:47,270 I am printing. 253 00:13:47,300 --> 00:13:47,660 Hello. 254 00:13:47,930 --> 00:13:49,220 So this line is a comment. 255 00:13:49,370 --> 00:13:51,860 We will not do anything now from this record. 256 00:13:51,980 --> 00:13:53,390 I will check the condition again. 257 00:13:54,540 --> 00:13:56,290 So the value of AI is again one. 258 00:13:56,330 --> 00:13:57,950 So one is less than it goes to five. 259 00:13:58,010 --> 00:13:58,100 Yes. 260 00:13:58,100 --> 00:13:59,090 Have the condition is true. 261 00:13:59,640 --> 00:14:01,730 Brent, hello again. 262 00:14:02,630 --> 00:14:03,470 Condition is true. 263 00:14:03,860 --> 00:14:04,160 Brent. 264 00:14:04,160 --> 00:14:05,830 Hello again. 265 00:14:06,080 --> 00:14:06,980 The condition is true. 266 00:14:07,070 --> 00:14:07,370 Brent. 267 00:14:07,370 --> 00:14:08,560 Hello again. 268 00:14:08,570 --> 00:14:09,600 The condition is true. 269 00:14:09,710 --> 00:14:11,080 Brent, hello again. 270 00:14:11,090 --> 00:14:12,020 The condition is true. 271 00:14:12,110 --> 00:14:12,380 Brent. 272 00:14:12,380 --> 00:14:12,680 Hello. 273 00:14:13,040 --> 00:14:21,170 So I will always be one since I is always one and one and one is always less than close to five. 274 00:14:21,500 --> 00:14:23,780 So this condition is always true. 275 00:14:25,340 --> 00:14:26,230 True, always. 276 00:14:27,550 --> 00:14:29,960 So this condition is always true. 277 00:14:29,960 --> 00:14:30,940 And that is that is reason. 278 00:14:31,010 --> 00:14:31,380 Hello. 279 00:14:31,380 --> 00:14:31,600 Really. 280 00:14:32,090 --> 00:14:32,330 Hello. 281 00:14:32,340 --> 00:14:36,340 We keep bringing in finite number of times. 282 00:14:38,640 --> 00:14:43,530 OK, so that's that is there is an updated condition is important. 283 00:14:44,220 --> 00:14:50,740 So if you would an outright W8 condition or the right update condition wrong, our loop will run in 284 00:14:50,810 --> 00:14:52,210 finite number of times. 285 00:14:53,680 --> 00:14:54,970 OK, now let us. 286 00:14:55,050 --> 00:14:55,500 Right. 287 00:14:56,610 --> 00:14:57,360 Wrong loop. 288 00:14:58,970 --> 00:15:07,370 So instead of incrementing, I plus plus, what if I'm updating, but I am doing it wrong, I am decreasing 289 00:15:07,370 --> 00:15:13,280 the value if I buy one in this case also my loop will run and finite number of times. 290 00:15:13,370 --> 00:15:13,910 Let's see. 291 00:15:18,700 --> 00:15:26,500 So as you can see, again, this loop is an infinite loop, Hallowell get printed and finite number 292 00:15:26,500 --> 00:15:27,120 of times. 293 00:15:28,250 --> 00:15:30,770 Now, we have written W8 condition here. 294 00:15:30,860 --> 00:15:35,710 So why this loop is infinite running infinite number of times in the previous case? 295 00:15:36,050 --> 00:15:37,700 I commended W8 condition. 296 00:15:38,090 --> 00:15:40,610 So there it is, the reason my condition was always true. 297 00:15:41,730 --> 00:15:42,790 OK, Martin. 298 00:15:43,090 --> 00:15:48,910 We have an updated condition then also my loop is running in finite number of things. 299 00:15:49,480 --> 00:15:50,740 So what is happening here? 300 00:15:51,130 --> 00:15:52,380 Let's try to understand. 301 00:15:56,610 --> 00:16:03,330 So in previous case, Lupe was running in funny at times because we have commented out IWD condition. 302 00:16:03,750 --> 00:16:06,310 But in this case, we have written ablate condition. 303 00:16:06,360 --> 00:16:12,360 Then also my loop is running in finite number of times, socio telo. 304 00:16:14,730 --> 00:16:17,670 Now we are decreasing the value of fire by one. 305 00:16:19,350 --> 00:16:21,420 OK, so here's my output. 306 00:16:24,210 --> 00:16:25,170 I equals one. 307 00:16:25,470 --> 00:16:27,330 So is one less than close to five. 308 00:16:27,370 --> 00:16:28,530 Yes, the condition is true. 309 00:16:29,040 --> 00:16:29,580 Brent hello. 310 00:16:30,180 --> 00:16:30,930 So is he out? 311 00:16:31,470 --> 00:16:31,830 Hello. 312 00:16:32,370 --> 00:16:33,490 The keys, the radio five. 313 00:16:33,500 --> 00:16:35,910 I once knew a little five will become zero. 314 00:16:36,330 --> 00:16:40,560 Now check the condition again is zero listing close to five. 315 00:16:40,710 --> 00:16:41,100 Yes. 316 00:16:41,200 --> 00:16:43,620 Zero is less than out of close to five. 317 00:16:44,160 --> 00:16:46,510 So I will come inside the loop and I will print. 318 00:16:46,560 --> 00:16:47,340 Hello again. 319 00:16:48,510 --> 00:16:52,320 Now the keys to vilify by went to the new l'oeil five becomes minus one. 320 00:16:52,830 --> 00:16:54,760 And now you will check the condition again. 321 00:16:55,170 --> 00:16:56,970 So is minus one. 322 00:16:57,340 --> 00:16:58,770 Let's 10 articles to five. 323 00:16:58,800 --> 00:16:59,970 Yes, the condition is true. 324 00:17:00,240 --> 00:17:02,730 You will come inside the loop and you will print. 325 00:17:02,970 --> 00:17:03,990 Hello again. 326 00:17:04,830 --> 00:17:06,530 Now the keys to vilify by one. 327 00:17:06,570 --> 00:17:07,010 So new. 328 00:17:07,010 --> 00:17:11,150 Well, if I is minus two again you will check the condition head. 329 00:17:11,220 --> 00:17:12,450 Will we get printed. 330 00:17:12,820 --> 00:17:14,360 Now I equals minus three. 331 00:17:14,370 --> 00:17:15,270 Then minus four. 332 00:17:15,300 --> 00:17:15,960 And so on. 333 00:17:17,550 --> 00:17:17,800 OK. 334 00:17:18,170 --> 00:17:21,440 So basically, I will never become close to six. 335 00:17:23,910 --> 00:17:27,030 OK, so the value of FI is decreasing. 336 00:17:28,200 --> 00:17:29,550 And what should happen? 337 00:17:29,630 --> 00:17:31,380 The value of I should have increased. 338 00:17:32,970 --> 00:17:40,460 But in this case, the vilify is decreasing and hence the value of I will never become greater than 339 00:17:40,470 --> 00:17:44,110 five since the very five will never become good. 340 00:17:44,140 --> 00:17:44,760 Then five. 341 00:17:45,180 --> 00:17:48,210 This loop will always be true. 342 00:17:49,720 --> 00:17:53,170 This loop will always be true. 343 00:17:53,530 --> 00:17:57,700 And that is the reason hello will get printed in finite number of times. 344 00:17:58,870 --> 00:18:00,040 In previous case. 345 00:18:01,730 --> 00:18:08,950 In previous case, this condition was true because we have not returned the update statement. 346 00:18:11,080 --> 00:18:11,360 OK. 347 00:18:11,730 --> 00:18:14,100 In this case, I believe statement was missing. 348 00:18:14,250 --> 00:18:16,920 Notice the reason this condition was always true. 349 00:18:17,550 --> 00:18:21,650 But in this case, we have written the updated condition. 350 00:18:21,930 --> 00:18:24,810 But we have written the wrong update condition. 351 00:18:25,260 --> 00:18:28,950 So that is there is in this loop is always through. 352 00:18:30,580 --> 00:18:30,870 OK. 353 00:18:31,770 --> 00:18:35,670 Now, there is one more way to make our loop. 354 00:18:37,960 --> 00:18:38,670 Always true. 355 00:18:38,760 --> 00:18:39,600 So what we can do. 356 00:18:39,680 --> 00:18:39,980 OK. 357 00:18:40,080 --> 00:18:40,490 Sorry. 358 00:18:40,560 --> 00:18:41,100 See old. 359 00:18:45,710 --> 00:18:52,550 So basically, the main concept is my loop will run an infinite number of times only when my condition 360 00:18:52,550 --> 00:18:53,810 is always true. 361 00:18:54,740 --> 00:18:59,360 OK, so this is the mean idea of running a loop and in a number of games. 362 00:18:59,960 --> 00:19:00,670 What do you do? 363 00:19:01,070 --> 00:19:02,620 Make the loop always. 364 00:19:03,220 --> 00:19:06,260 So wild when one means through. 365 00:19:06,890 --> 00:19:11,150 So vilely means run the loop infinite number of times. 366 00:19:11,210 --> 00:19:14,280 So this loop will run infinite number of times. 367 00:19:14,480 --> 00:19:15,020 Let's see. 368 00:19:18,190 --> 00:19:24,540 So as you can see, this loop is also running in finite number of times. 369 00:19:26,740 --> 00:19:27,000 OK. 370 00:19:29,890 --> 00:19:32,770 Now, why this little boy is running and fired a number of times to. 371 00:19:32,890 --> 00:19:38,520 So the logic is very simple, Viall when I am printing hello. 372 00:19:43,000 --> 00:19:52,210 So if you look carefully at the above example, my loop will run in finite number of times if the condition 373 00:19:52,210 --> 00:19:53,350 is true, all these. 374 00:19:54,360 --> 00:20:02,430 Similarly, hair, my lube with was also running in finite a number of times because this condition 375 00:20:02,430 --> 00:20:03,600 was always true. 376 00:20:04,230 --> 00:20:12,630 So the main concept is any loop will run in finite number of times if the condition is always true. 377 00:20:13,080 --> 00:20:22,770 So if the condition is always through, my loop will run in finite number of times. 378 00:20:24,180 --> 00:20:31,560 So I have already told you on that any positive value, any positive value means through and the zero 379 00:20:31,560 --> 00:20:32,730 means false. 380 00:20:33,750 --> 00:20:36,910 So one means through survival, through. 381 00:20:37,200 --> 00:20:42,950 So this condition will always be true and will be printed in finite number of times. 382 00:20:44,300 --> 00:20:44,540 OK. 383 00:20:44,850 --> 00:20:47,160 So what will happen instead of writing one here? 384 00:20:47,190 --> 00:20:48,120 I write five. 385 00:20:48,660 --> 00:20:52,500 Then also this loop will end in fact number of times because five means through. 386 00:20:53,130 --> 00:20:55,830 Similarly, you can write three, seven, eight anyway. 387 00:20:56,760 --> 00:21:02,130 And if we write vilely, zero zero means Falls City out. 388 00:21:02,820 --> 00:21:03,210 Hello. 389 00:21:04,740 --> 00:21:08,430 So if you will run this, my loop will not run. 390 00:21:09,060 --> 00:21:13,920 So hello will not be Brender because this is false. 391 00:21:14,430 --> 00:21:16,890 Since the condition is false, I will reach here. 392 00:21:17,010 --> 00:21:18,930 I will not go inside the loop. 393 00:21:19,770 --> 00:21:20,390 So let's see. 394 00:21:21,950 --> 00:21:24,200 So Insitute of One here you can write anyway, Lou. 395 00:21:24,300 --> 00:21:25,460 For example, seven. 396 00:21:28,170 --> 00:21:31,140 Because seven is a positive number. 397 00:21:31,560 --> 00:21:34,040 Has the condition a lot less brutal. 398 00:21:34,080 --> 00:21:35,350 So the loop is running fine. 399 00:21:35,400 --> 00:21:36,210 Number of times. 400 00:21:37,110 --> 00:21:38,280 Now, let us slide here. 401 00:21:38,430 --> 00:21:38,820 Zero. 402 00:21:39,120 --> 00:21:45,000 So while zero zero means false, since the condition is false, I will not go inside the loop. 403 00:21:45,540 --> 00:21:47,980 I will directly commit line number one. 404 00:21:49,230 --> 00:21:50,730 OK, so I will likely come here. 405 00:21:50,840 --> 00:21:51,960 Line number two. 406 00:21:55,880 --> 00:21:56,120 OK. 407 00:21:56,760 --> 00:21:58,530 So nothing is getting printed. 408 00:21:59,160 --> 00:21:59,580 Great. 409 00:22:02,680 --> 00:22:05,850 Now, our task force, we have to print hello. 410 00:22:07,330 --> 00:22:08,380 We have to print hello. 411 00:22:10,470 --> 00:22:13,730 Let's say 2000 times our problem was started. 412 00:22:14,370 --> 00:22:17,190 So our problem was started from 5000 times. 413 00:22:17,310 --> 00:22:19,020 We have to print our low 5000 times. 414 00:22:19,770 --> 00:22:21,210 So logic is very simple. 415 00:22:21,810 --> 00:22:22,890 Take a video, Ballay. 416 00:22:24,770 --> 00:22:26,110 And you should either to one. 417 00:22:27,050 --> 00:22:27,260 Right. 418 00:22:27,290 --> 00:22:29,360 The condition condition is very simple. 419 00:22:29,480 --> 00:22:34,160 While a listing goes to five and just increment the radio five by one. 420 00:22:34,220 --> 00:22:35,240 So I bless plus. 421 00:22:36,260 --> 00:22:38,090 Now, this loop is perfect. 422 00:22:38,600 --> 00:22:39,850 So HelloWallet Carpenter. 423 00:22:40,000 --> 00:22:41,330 Five thousand times. 424 00:22:46,150 --> 00:22:47,480 So hello is getting Brender. 425 00:22:47,660 --> 00:22:50,120 Five thousand times you can scroll up if you want. 426 00:22:50,780 --> 00:22:53,450 And if you have extra time, you can also countered. 427 00:22:56,980 --> 00:22:57,190 OK. 428 00:22:57,630 --> 00:22:59,890 So this is the mean idea of a loop. 429 00:23:00,780 --> 00:23:02,750 No incoming weirdos from what we will do. 430 00:23:02,860 --> 00:23:09,200 We will solve many problems with the help of Loop to get a better understanding how the loop is working. 431 00:23:10,390 --> 00:23:12,610 OK, so that is all for this video. 432 00:23:12,910 --> 00:23:13,390 Thank you.