title
4.1 Queue in Data Structure | Introduction to Queue | Data Structures Tutorials

description
In this lecture, I have described queue data structure as abstract data type. Discussed introduction to queue with its operations. DSA Full Course: https: https://www.youtube.com/playlist?list=PLdo5W4Nhv31bbKJzrsKfMpo_grxuLl8LU ****************************************** See Complete Playlists: C Programming Course: https://www.youtube.com/playlist?list=PLdo5W4Nhv31a8UcMN9-35ghv8qyFWD9_S C++ Programming: https://www.youtube.com/playlist?list=PLdo5W4Nhv31YU5Wx1dopka58teWP9aCee Python Full Course: https://www.youtube.com/playlist?list=PLdo5W4Nhv31bZSiqiOL5ta39vSnBxpOPT Printing Pattern in C: https://www.youtube.com/playlist?list=PLdo5W4Nhv31Yu1igxTE2x0aeShbKtVcCy DAA Course: https://www.youtube.com/playlist?list=PLdo5W4Nhv31ZTn2P9vF02bkb3SC8uiUUn Placement Series: https://www.youtube.com/playlist?list=PLdo5W4Nhv31YvlDpJhvOYbM9Ap8UypgEy Dynamic Programming: https://www.youtube.com/playlist?list=PLdo5W4Nhv31aBrJE1WS4MR9LRfbmZrAQu Operating Systems: //www.youtube.com/playlist?list=PLdo5W4Nhv31a5ucW_S1K3-x6ztBRD-PNa DBMS: https://www.youtube.com/playlist?list=PLdo5W4Nhv31b33kF46f9aFjoJPOkdlsRc ********************************************** Connect & Contact Me: Facebook: https://www.facebook.com/Jennys-Lectures-CSIT-Netjrf-316814368950701/ Quora: https://www.quora.com/profile/Jayanti-Khatri-Lamba Instagram: https://www.instagram.com/jayantikhatrilamba/ #jennyslectures #datastructures #queues #ugcnet

detail
{'title': '4.1 Queue in Data Structure | Introduction to Queue | Data Structures Tutorials', 'heatmap': [{'end': 199.15, 'start': 169.814, 'weight': 0.762}, {'end': 662.547, 'start': 601.175, 'weight': 0.771}, {'end': 769.106, 'start': 728.53, 'weight': 0.714}, {'end': 951.591, 'start': 925.808, 'weight': 0.812}, {'end': 1026.163, 'start': 967.019, 'weight': 0.764}], 'summary': 'Tutorial covers the introduction to queues in data structures, explaining its abstract data type, features, and operations without detailed implementations. it also discusses the fifo principle, basic operations, including insertion and deletion, and explores limitations and applications of the queue data structure, providing insights into real-life scenarios and examples.', 'chapters': [{'end': 46.239, 'segs': [{'end': 46.239, 'src': 'embed', 'start': 0.149, 'weight': 0, 'content': [{'end': 3.592, 'text': 'in this video we are going to talk about queues in data structure.', 'start': 0.149, 'duration': 3.443}, {'end': 5.014, 'text': 'see what is a data structure.', 'start': 3.592, 'duration': 1.422}, {'end': 8.917, 'text': 'it is a way of storing and organizing the data right.', 'start': 5.014, 'duration': 3.903}, {'end': 12.841, 'text': 'we have discussed few data structures like arrays, linked list and stacks.', 'start': 8.917, 'duration': 3.924}, {'end': 16.143, 'text': 'in this video we will see what is queue.', 'start': 12.841, 'duration': 3.302}, {'end': 18.466, 'text': 'so queue is what it is a linear data structure.', 'start': 16.143, 'duration': 2.323}, {'end': 19.427, 'text': 'you can say.', 'start': 18.466, 'duration': 0.961}, {'end': 22.77, 'text': 'or you can say queue is an abstract data type.', 'start': 19.427, 'duration': 3.343}, {'end': 26.253, 'text': 'in this video we will discuss queue as an abstract data type.', 'start': 22.77, 'duration': 3.483}, {'end': 35.427, 'text': 'ADT means when I say ADT, it means we are going to define, we are going to see the features or operations of queue.', 'start': 27.577, 'duration': 7.85}, {'end': 38.41, 'text': 'We will not go in detailed implementation.', 'start': 35.987, 'duration': 2.423}, {'end': 44.178, 'text': 'right. see, we can implement queues using arrays, linked list, as well as using stack.', 'start': 39.315, 'duration': 4.863}, {'end': 46.239, 'text': 'that implementation we will discuss in next video.', 'start': 44.178, 'duration': 2.061}], 'summary': 'This video discusses queues as a linear data structure and an abstract data type, along with their features and operations.', 'duration': 46.09, 'max_score': 0.149, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/zp6pBNbUB2U/pics/zp6pBNbUB2U149.jpg'}], 'start': 0.149, 'title': 'Introduction to queues in data structure', 'summary': 'Introduces queues as a linear data structure in data, discussing its abstract data type, features, and operations without detailed implementation or examples of queue implementation using arrays, linked list, or stack.', 'chapters': [{'end': 46.239, 'start': 0.149, 'title': 'Introduction to queues in data structure', 'summary': 'Introduces the concept of queues in data structure as a linear data structure, and discusses its abstract data type, including its features and operations, without delving into detailed implementation or examples of queue implementation using arrays, linked list, or stack.', 'duration': 46.09, 'highlights': ['The chapter discusses queues as a linear data structure and an abstract data type, without detailed implementation. (Relevance: 4)', 'An abstract data type (ADT) is defined as the features or operations of a queue, without delving into detailed implementation. (Relevance: 3)', 'The video briefly covers data structures like arrays, linked list, and stacks before introducing the concept of queues. (Relevance: 2)', 'The implementation of queues using arrays, linked list, and stack is deferred to the next video. (Relevance: 1)']}], 'duration': 46.09, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/zp6pBNbUB2U/pics/zp6pBNbUB2U149.jpg', 'highlights': ['The chapter discusses queues as a linear data structure and an abstract data type, without detailed implementation. (Relevance: 4)', 'An abstract data type (ADT) is defined as the features or operations of a queue, without delving into detailed implementation. (Relevance: 3)', 'The video briefly covers data structures like arrays, linked list, and stacks before introducing the concept of queues. (Relevance: 2)', 'The implementation of queues using arrays, linked list, and stack is deferred to the next video. (Relevance: 1)']}, {'end': 504.398, 'segs': [{'end': 73.257, 'src': 'embed', 'start': 46.239, 'weight': 0, 'content': [{'end': 53.283, 'text': 'in this video we will see what is queue and what are different operations performed on queue fundamental operations, fine,', 'start': 46.239, 'duration': 7.044}, {'end': 56.565, 'text': 'as well as we will see some applications of queues.', 'start': 53.283, 'duration': 3.282}, {'end': 59.807, 'text': 'so let us understand this concept with the real life scenario.', 'start': 56.565, 'duration': 3.242}, {'end': 64.53, 'text': 'first of all, right, let us suppose there is a ticket counter.', 'start': 59.807, 'duration': 4.723}, {'end': 66.931, 'text': "fine, it's a movie ticket counter.", 'start': 64.53, 'duration': 2.401}, {'end': 73.257, 'text': 'you can consider, right, and now there is no one there in the queue or in the line.', 'start': 66.931, 'duration': 6.326}], 'summary': 'Introduction to queue data structure and its fundamental operations and applications.', 'duration': 27.018, 'max_score': 46.239, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/zp6pBNbUB2U/pics/zp6pBNbUB2U46239.jpg'}, {'end': 121.526, 'src': 'embed', 'start': 93.127, 'weight': 1, 'content': [{'end': 97.311, 'text': 'and suppose before you there are five persons and after that you reach there.', 'start': 93.127, 'duration': 4.184}, {'end': 107.86, 'text': 'so you have, you will have to stand at sixth position, right, and you will get ticket after the, after you know the these five persons.', 'start': 97.311, 'duration': 10.549}, {'end': 113.723, 'text': 'fine. so here the simple funda is what first in, first out.', 'start': 108.621, 'duration': 5.102}, {'end': 121.526, 'text': 'or you can say first come, first serve, the person who is first in the row will get the ticket first, right.', 'start': 113.723, 'duration': 7.803}], 'summary': "The ticketing system follows a 'first in, first out' approach, serving the person at the front of the line first.", 'duration': 28.399, 'max_score': 93.127, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/zp6pBNbUB2U/pics/zp6pBNbUB2U93127.jpg'}, {'end': 199.15, 'src': 'heatmap', 'start': 169.814, 'weight': 0.762, 'content': [{'end': 177.798, 'text': 'in case of Q, insertion would be performed from one end, right, and the name of that end.', 'start': 169.814, 'duration': 7.984}, {'end': 199.15, 'text': 'that end is known as rear or tail, And deletion would be performed from another end and that end is known as head, or you can say front.', 'start': 177.798, 'duration': 21.352}], 'summary': 'In a q, insertion is from the rear and deletion is from the front.', 'duration': 29.336, 'max_score': 169.814, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/zp6pBNbUB2U/pics/zp6pBNbUB2U169814.jpg'}, {'end': 320.047, 'src': 'embed', 'start': 286.636, 'weight': 3, 'content': [{'end': 291.398, 'text': 'So, insertion or you can see NQ operation would be performed from rear.', 'start': 286.636, 'duration': 4.762}, {'end': 294.18, 'text': 'From here, we can insert data.', 'start': 291.539, 'duration': 2.641}, {'end': 297.727, 'text': 'in the queue.', 'start': 296.946, 'duration': 0.781}, {'end': 308.685, 'text': 'and if you want to delete data from the queue, it means from the front we can dequeue, we can delete data right.', 'start': 297.727, 'duration': 10.958}, {'end': 311.649, 'text': 'so this is what logical representation of a queue.', 'start': 308.685, 'duration': 2.964}, {'end': 313.602, 'text': 'Fine, suppose.', 'start': 312.401, 'duration': 1.201}, {'end': 320.047, 'text': 'in Q I have right now 2 elements, 2 and 3, at some point of time right?', 'start': 313.602, 'duration': 6.445}], 'summary': 'Queue operations include insertion, deletion, and current elements are 2 and 3.', 'duration': 33.411, 'max_score': 286.636, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/zp6pBNbUB2U/pics/zp6pBNbUB2U286636.jpg'}, {'end': 462.951, 'src': 'embed', 'start': 434.493, 'weight': 2, 'content': [{'end': 437.795, 'text': 'so now we will see some operation that can be performed on a queue.', 'start': 434.493, 'duration': 3.302}, {'end': 447.907, 'text': 'so you can define queue as it is a ordered list, or you can say it is a collection In which insertion can be performed from one end, that is,', 'start': 437.795, 'duration': 10.112}, {'end': 455.159, 'text': 'from rear end, and deletion can be performed from another end, that is, from front end of the cube.', 'start': 447.907, 'duration': 7.252}, {'end': 457.629, 'text': 'fine and it is going to follow.', 'start': 455.728, 'duration': 1.901}, {'end': 460.27, 'text': 'it is a structure you can say that is going to follow the fifo rules.', 'start': 457.629, 'duration': 2.641}, {'end': 462.951, 'text': 'that is first in first out right.', 'start': 460.27, 'duration': 2.681}], 'summary': 'Queue is an ordered list with fifo rule for insertion and deletion.', 'duration': 28.458, 'max_score': 434.493, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/zp6pBNbUB2U/pics/zp6pBNbUB2U434493.jpg'}], 'start': 46.239, 'title': 'Understanding queues and fifo principle', 'summary': "Explains the concept of queues using a real-life scenario, emphasizing the 'first in, first out' principle, logical representation, nq and dq operations, and the fifo rule, with a distinction between stacks and queues.", 'chapters': [{'end': 121.526, 'start': 46.239, 'title': 'Understanding queues and operations', 'summary': "Explains the concept of a queue using a real-life scenario of a ticket counter, demonstrating the 'first in, first out' principle and the order of service.", 'duration': 75.287, 'highlights': ["The fundamental concept of a queue is exemplified by the 'first in, first out' principle at a ticket counter, where the person first in the line is served first, illustrating the basic operation and behavior of a queue.", "The example of a movie ticket counter is used to illustrate the 'first come, first serve' principle, demonstrating the order of service and the impact of arrival time on receiving service."]}, {'end': 504.398, 'start': 121.526, 'title': 'Understanding queues and fifo principle', 'summary': 'Explains the concept of queues, including their logical representation, operations such as nq and dq, and the fifo principle, with emphasis on insertion and deletion processes and the fifo rule. it also highlights the distinction between stacks and queues.', 'duration': 382.872, 'highlights': ['Queues follow the FIFO principle, with insertion from the rear end and deletion from the front end, and are represented logically with two open ends, distinct from stacks that adhere to the LIFO principle. The concept of queues is centered around the FIFO principle, with emphasis on insertion and deletion processes and the logical representation of queues with two open ends, in contrast to stacks that follow the LIFO principle.', 'The insertion operation in a queue, known as NQ, is performed from the rear end, while the deletion operation, known as DQ, takes place from the front end, with examples demonstrating the process and distinction between NQ and DQ. The chapter explains the fundamental operations of queues, NQ and DQ, highlighting the distinct processes of insertion and deletion, along with illustrative examples.', 'Illustration of the logical representation of a queue, focusing on the front and rear variables as essential components, with a detailed description of the process of insertion and deletion and the impact on the front and rear pointers. The logical representation of queues is detailed, emphasizing the significance of front and rear variables and their role in insertion and deletion processes, along with the impact on the position of front and rear pointers.']}], 'duration': 458.159, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/zp6pBNbUB2U/pics/zp6pBNbUB2U46239.jpg', 'highlights': ["The fundamental concept of a queue is exemplified by the 'first in, first out' principle at a ticket counter, illustrating the basic operation and behavior of a queue.", "The example of a movie ticket counter is used to illustrate the 'first come, first serve' principle, demonstrating the order of service and the impact of arrival time on receiving service.", 'Queues follow the FIFO principle, with insertion from the rear end and deletion from the front end, and are represented logically with two open ends, distinct from stacks that adhere to the LIFO principle.', 'The insertion operation in a queue, known as NQ, is performed from the rear end, while the deletion operation, known as DQ, takes place from the front end, with examples demonstrating the process and distinction between NQ and DQ.', 'Illustration of the logical representation of a queue, focusing on the front and rear variables as essential components, with a detailed description of the process of insertion and deletion and the impact on the front and rear pointers.']}, {'end': 979.605, 'segs': [{'end': 662.547, 'src': 'heatmap', 'start': 538.522, 'weight': 0, 'content': [{'end': 543.611, 'text': 'It will return true if the queue is full, otherwise it will return false.', 'start': 538.522, 'duration': 5.089}, {'end': 546.198, 'text': 'is empty.', 'start': 544.617, 'duration': 1.581}, {'end': 548.079, 'text': 'same we have discussed in stack.', 'start': 546.198, 'duration': 1.881}, {'end': 552.481, 'text': 'if the queue is empty, then it would return true, otherwise it would return false.', 'start': 548.079, 'duration': 4.402}, {'end': 556.284, 'text': 'right now, see the logical representation of q.', 'start': 552.481, 'duration': 3.803}, {'end': 558.585, 'text': 'so this is the logical representation of q.', 'start': 556.284, 'duration': 2.301}, {'end': 560.126, 'text': 'fine, any end.', 'start': 558.585, 'duration': 1.541}, {'end': 565.128, 'text': 'you can take front or rear, but you have to take care of that thing.', 'start': 560.126, 'duration': 5.002}, {'end': 568.65, 'text': 'deletion from front and insertion from rear right.', 'start': 565.128, 'duration': 3.522}, {'end': 578.047, 'text': 'so here i am taking this is what front and this is what rear I will insert always from here, delete from here.', 'start': 568.65, 'duration': 9.397}, {'end': 585.27, 'text': 'you can take front, this side, rear, this side as you wish, but insertion and deletion would be according to the rule only fine.', 'start': 578.047, 'duration': 7.223}, {'end': 589.951, 'text': 'now, if you want to insert some data here, obviously you need to specify the size of this queue.', 'start': 585.27, 'duration': 4.681}, {'end': 596.354, 'text': 'suppose the capacity of queue is 5, you can say size I am taking is 5.', 'start': 589.951, 'duration': 6.403}, {'end': 599.054, 'text': 'how we will take the size 5, how we will implement this queue.', 'start': 596.354, 'duration': 2.7}, {'end': 601.175, 'text': 'that thing we will discuss in next video.', 'start': 599.054, 'duration': 2.121}, {'end': 614.545, 'text': 'so it means I can insert 5 element in this queue right here i have this end and index is 0, 1, 2, 3 and 4.', 'start': 601.175, 'duration': 13.37}, {'end': 617.329, 'text': 'so initially there is nothing in the queue right.', 'start': 614.545, 'duration': 2.784}, {'end': 618.611, 'text': 'in that case, what we will do?', 'start': 617.329, 'duration': 1.282}, {'end': 623.473, 'text': 'both front front, end, this rear would point to minus 1.', 'start': 619.648, 'duration': 3.825}, {'end': 628.519, 'text': 'hypothetically we assume that there is a minus 1 index and these are pointing to minus 1.', 'start': 623.473, 'duration': 5.046}, {'end': 630.401, 'text': 'it means q is empty.', 'start': 628.519, 'duration': 1.882}, {'end': 632.203, 'text': 'right, that is the signal.', 'start': 630.401, 'duration': 1.802}, {'end': 634.946, 'text': 'if this is minus 1, it means q is empty.', 'start': 632.203, 'duration': 2.743}, {'end': 637.409, 'text': 'now i want to enqueue 2.', 'start': 634.946, 'duration': 2.463}, {'end': 638.591, 'text': 'now what would happen?', 'start': 637.409, 'duration': 1.182}, {'end': 643.28, 'text': 'see, Front is minus 1, rear is also minus 1..', 'start': 638.591, 'duration': 4.689}, {'end': 646.061, 'text': 'Obviously we will increase front and rear both.', 'start': 643.28, 'duration': 2.781}, {'end': 649.782, 'text': 'So front plus plus and rear plus plus also right.', 'start': 646.761, 'duration': 3.021}, {'end': 662.547, 'text': 'So now front is also pointing to here and at this point of time rear is also pointing to here at 0 and now we can insert here too.', 'start': 650.303, 'duration': 12.244}], 'summary': 'Discussion of queue implementation with logical representation and capacity of 5 elements.', 'duration': 80.089, 'max_score': 538.522, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/zp6pBNbUB2U/pics/zp6pBNbUB2U538522.jpg'}, {'end': 769.106, 'src': 'heatmap', 'start': 728.53, 'weight': 0.714, 'content': [{'end': 732.272, 'text': 'no need to pass anything because always the data will be deleted from front.', 'start': 728.53, 'duration': 3.742}, {'end': 735.774, 'text': 'now you can touch this front.', 'start': 732.272, 'duration': 3.502}, {'end': 737.735, 'text': 'now we will not touch this rear in dq.', 'start': 735.774, 'duration': 1.961}, {'end': 740.336, 'text': 'we will touch this front right.', 'start': 737.735, 'duration': 2.601}, {'end': 746.439, 'text': "so now, suppose you want to print the data you have dq'd, so you can write down printf.", 'start': 740.336, 'duration': 6.103}, {'end': 749.101, 'text': "the data you have dq'd is from the queue.", 'start': 746.439, 'duration': 2.662}, {'end': 755.084, 'text': 'you can print this value and after that, what you will do, you will do front plus plus, right.', 'start': 749.101, 'duration': 5.983}, {'end': 765.005, 'text': 'so now front is pointing to here front is 1, rear is 2, or in DQ, simply you will write front plus plus.', 'start': 755.084, 'duration': 9.921}, {'end': 769.106, 'text': 'that is also fine, because now this is not a part of Q.', 'start': 765.005, 'duration': 4.101}], 'summary': 'Data manipulation in a queue: accessing, printing, and moving pointers.', 'duration': 40.576, 'max_score': 728.53, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/zp6pBNbUB2U/pics/zp6pBNbUB2U728530.jpg'}, {'end': 857.456, 'src': 'embed', 'start': 825.639, 'weight': 3, 'content': [{'end': 827.099, 'text': 'it means you can say overflow condition.', 'start': 825.639, 'duration': 1.46}, {'end': 829.02, 'text': 'this is overflow condition, right.', 'start': 827.099, 'duration': 1.921}, {'end': 834.962, 'text': 'so this would print what overflow condition this is now of overflow condition.', 'start': 829.02, 'duration': 5.942}, {'end': 838.408, 'text': 'right, and what is underflow condition?', 'start': 834.962, 'duration': 3.446}, {'end': 844.25, 'text': 'suppose you want to dq and there is nothing in this list, right.', 'start': 838.408, 'duration': 5.842}, {'end': 847.532, 'text': 'both front and rear are minus 1.', 'start': 844.25, 'duration': 3.282}, {'end': 853.234, 'text': 'in that case what that is an underflow condition, that is q, is empty right now.', 'start': 847.532, 'duration': 5.702}, {'end': 857.456, 'text': 'suppose, before calling this dq function i am calling peak function after this nq.', 'start': 853.234, 'duration': 4.222}], 'summary': 'Discussion on overflow and underflow conditions in a queue.', 'duration': 31.817, 'max_score': 825.639, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/zp6pBNbUB2U/pics/zp6pBNbUB2U825639.jpg'}, {'end': 951.591, 'src': 'heatmap', 'start': 925.808, 'weight': 0.812, 'content': [{'end': 932.171, 'text': 'right? or if you will not do this thing, then simply same processor front plus plus right.', 'start': 925.808, 'duration': 6.363}, {'end': 934.512, 'text': 'front plus plus means front would point to here.', 'start': 932.171, 'duration': 2.341}, {'end': 937.453, 'text': 'that is 5, front becomes 5.', 'start': 934.512, 'duration': 2.941}, {'end': 946.104, 'text': 'so another condition of checking the empty queue is what If front is greater than this rear because rear is still 4, front is 5, right?', 'start': 937.453, 'duration': 8.651}, {'end': 948.487, 'text': 'In that case it means Q is empty.', 'start': 946.364, 'duration': 2.123}, {'end': 951.591, 'text': 'Front plus plus means we have deleted this Q.', 'start': 949.368, 'duration': 2.223}], 'summary': 'Explanation of front++ operation and condition for checking an empty queue.', 'duration': 25.783, 'max_score': 925.808, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/zp6pBNbUB2U/pics/zp6pBNbUB2U925808.jpg'}, {'end': 987.671, 'src': 'embed', 'start': 960.296, 'weight': 4, 'content': [{'end': 964.077, 'text': 'so we are going to see how to write down these condition in next video.', 'start': 960.296, 'duration': 3.781}, {'end': 967.019, 'text': 'fine, now, suppose, if you talk about the time complexity,', 'start': 964.077, 'duration': 2.942}, {'end': 976.523, 'text': 'then in that case these operations would take order of one only because we are not going to write any loops or anything for performing these operations.', 'start': 967.019, 'duration': 9.504}, {'end': 979.605, 'text': 'so it would take order of one only right, constant time.', 'start': 976.523, 'duration': 3.082}, {'end': 984.849, 'text': 'Now, suppose, at some point of time both front and rear are pointing to this node.', 'start': 980.505, 'duration': 4.344}, {'end': 987.671, 'text': 'it means Q is having only one data.', 'start': 984.849, 'duration': 2.822}], 'summary': 'Operations have constant time complexity, taking order of one only.', 'duration': 27.375, 'max_score': 960.296, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/zp6pBNbUB2U/pics/zp6pBNbUB2U960296.jpg'}], 'start': 504.398, 'title': 'Queue data structure basics and operations', 'summary': 'Covers the basic operations of a queue data structure including insertion and deletion processes, and the possibility of inserting 5 elements into the queue. it also explains the operations of enqueue and dequeue, along with the conditions of overflow and underflow, and provides insights into the time complexity of these operations.', 'chapters': [{'end': 618.611, 'start': 504.398, 'title': 'Queue data structure basics', 'summary': 'Covers the basic operations of a queue data structure including checking if the queue is full or empty, and the logical representation of a queue, emphasizing the insertion and deletion processes, and the possibility of inserting 5 elements into the queue.', 'duration': 114.213, 'highlights': ['The chapter emphasizes the basic operations of a queue, including checking if the queue is full or empty, and the logical representation of a queue.', 'It discusses the insertion and deletion processes in a queue, highlighting the importance of adhering to the rules of insertion and deletion.', 'The chapter concludes by highlighting the possibility of inserting 5 elements into the queue, emphasizing the initial index as 0 and the capacity as 5.']}, {'end': 979.605, 'start': 619.648, 'title': 'Queue operation and conditions', 'summary': 'Explains the operations of enqueue and dequeue in a queue data structure, along with the conditions of overflow and underflow, and provides insights into the time complexity of these operations.', 'duration': 359.957, 'highlights': ['The chapter provides a detailed explanation of enqueue and dequeue operations in a queue data structure, along with the conditions of overflow and underflow. It covers the process of enqueue and dequeue, the overflow and underflow conditions, and the front and rear pointers in the queue.', 'The chapter discusses the time complexity of queue operations, stating that these operations would take order of one only, implying constant time. It mentions that the operations of enqueue and dequeue have a time complexity of order one, indicating that these operations can be performed in constant time.', 'The transcript explains the conditions for overflow and underflow in a queue, providing clear insights into the scenarios leading to these conditions. It delves into the situations that lead to overflow and underflow in a queue, ensuring a comprehensive understanding of the conditions.']}], 'duration': 475.207, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/zp6pBNbUB2U/pics/zp6pBNbUB2U504398.jpg', 'highlights': ['The chapter emphasizes the basic operations of a queue, including checking if the queue is full or empty, and the logical representation of a queue.', 'The chapter discusses the insertion and deletion processes in a queue, highlighting the importance of adhering to the rules of insertion and deletion.', 'The chapter concludes by highlighting the possibility of inserting 5 elements into the queue, emphasizing the initial index as 0 and the capacity as 5.', 'The chapter provides a detailed explanation of enqueue and dequeue operations in a queue data structure, along with the conditions of overflow and underflow.', 'The chapter discusses the time complexity of queue operations, stating that these operations would take order of one only, implying constant time.', 'The transcript explains the conditions for overflow and underflow in a queue, providing clear insights into the scenarios leading to these conditions.']}, {'end': 1218.236, 'segs': [{'end': 1055.378, 'src': 'embed', 'start': 1027.424, 'weight': 0, 'content': [{'end': 1030.766, 'text': 'fine, so, but this is now a drawback.', 'start': 1027.424, 'duration': 3.342}, {'end': 1034.568, 'text': 'you have space but you cannot insert here data.', 'start': 1030.766, 'duration': 3.802}, {'end': 1037.611, 'text': 'right now we will see some applications of queue.', 'start': 1034.568, 'duration': 3.043}, {'end': 1045.553, 'text': 'so the most common application of this queue data structure is what it is used where you want to.', 'start': 1038.55, 'duration': 7.003}, {'end': 1050.896, 'text': 'you know, serve the request on a single shared resource.', 'start': 1045.553, 'duration': 5.343}, {'end': 1053.958, 'text': 'suppose you have a single resource and that is shareable.', 'start': 1050.896, 'duration': 3.062}, {'end': 1055.378, 'text': 'let us take you.', 'start': 1053.958, 'duration': 1.42}], 'summary': 'Queue data structure commonly used to serve requests on a single shared resource.', 'duration': 27.954, 'max_score': 1027.424, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/zp6pBNbUB2U/pics/zp6pBNbUB2U1027424.jpg'}, {'end': 1142.193, 'src': 'embed', 'start': 1117.472, 'weight': 1, 'content': [{'end': 1125.218, 'text': 'then two like this right, and queues are also used in real life scenario, like you can take an example of, when you call in customer care,', 'start': 1117.472, 'duration': 7.746}, {'end': 1131.623, 'text': 'then sometimes they tell you that they tell you to hold on for few minutes because their representative is not free.', 'start': 1125.218, 'duration': 6.405}, {'end': 1132.284, 'text': 'so what they do?', 'start': 1131.623, 'duration': 0.661}, {'end': 1139.31, 'text': 'they use queues to put the people on hold right until their representative are free.', 'start': 1132.284, 'duration': 7.026}, {'end': 1142.193, 'text': 'fine. next you can take an example of processor.', 'start': 1139.31, 'duration': 2.883}], 'summary': 'Queues are used in real-life scenarios, such as customer care, to manage wait times until representatives are free.', 'duration': 24.721, 'max_score': 1117.472, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/zp6pBNbUB2U/pics/zp6pBNbUB2U1117472.jpg'}], 'start': 980.505, 'title': 'Queue data structure', 'summary': 'Discusses the limitations of a queue data structure, where the rear pointer reaching the maximum size causes overflow and wasted space, leading to a need for a circular queue. it also explores applications of the queue data structure, such as serving requests on a single shared resource like printers and processors, and real-life scenarios like customer care, with examples and explanations.', 'chapters': [{'end': 1027.424, 'start': 980.505, 'title': 'Queue data structure overview', 'summary': 'Discusses the limitation of a queue data structure, where the rear pointer reaching the maximum size causes overflow and wasted space, leading to a need for a circular queue.', 'duration': 46.919, 'highlights': ['Rear pointer reaching maximum size causes overflow When the rear pointer points to the maximum size minus one, an overflow condition occurs, and the queue is considered full.', 'Wasted space due to inability to insert in free spaces Despite having free spaces, the queue experiences wasted space as it cannot insert data, leading to inefficiency and space utilization drawbacks.', 'Introduction of circular queue as a solution The discussion mentions the circular queue as a solution to the limitations of the queue data structure, providing an insight into the upcoming topic of circular queues.']}, {'end': 1218.236, 'start': 1027.424, 'title': 'Applications of queue data structure', 'summary': 'Discusses the applications of the queue data structure, such as serving requests on a single shared resource like printers and processors, and real-life scenarios like customer care, with examples and explanations.', 'duration': 190.812, 'highlights': ['Queue data structure is commonly used to serve requests on a single shared resource like printers and processors, allowing for efficient management of tasks and resources. It is used in scenarios like sharing a printer among multiple PCs and managing processes in the operating system, ensuring that the resource is utilized effectively and tasks are managed efficiently.', 'Real-life scenarios, such as customer care, utilize queues to manage incoming requests and efficiently allocate resources when representatives are available. Customer care uses queues to hold calls until representatives are free, showcasing the practical application of queues in managing resource allocation and task scheduling.', 'The upcoming videos will delve into the implementation of queues using arrays, linked lists, and stacks, providing a comprehensive understanding of queue data structures and their practical implementations. The chapter outlines the plan to explore the implementation of queues using arrays, linked lists, and stacks in subsequent videos, offering a detailed understanding of the practical aspects of queue data structures.']}], 'duration': 237.731, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/zp6pBNbUB2U/pics/zp6pBNbUB2U980505.jpg', 'highlights': ['Introduction of circular queue as a solution to limitations of queue data structure', 'Real-life scenarios, such as customer care, utilize queues to manage incoming requests and efficiently allocate resources', 'Queue data structure is commonly used to serve requests on a single shared resource like printers and processors']}], 'highlights': ['The chapter discusses queues as a linear data structure and an abstract data type, without detailed implementation. (Relevance: 4)', 'An abstract data type (ADT) is defined as the features or operations of a queue, without delving into detailed implementation. (Relevance: 3)', "The fundamental concept of a queue is exemplified by the 'first in, first out' principle at a ticket counter, illustrating the basic operation and behavior of a queue.", "The example of a movie ticket counter is used to illustrate the 'first come, first serve' principle, demonstrating the order of service and the impact of arrival time on receiving service.", 'The chapter emphasizes the basic operations of a queue, including checking if the queue is full or empty, and the logical representation of a queue.', 'Introduction of circular queue as a solution to limitations of queue data structure']}