File Systems
... read all bytes/records from the beginning cannot jump around, could rewind or back up convenient when medium was mag tape ...
... read all bytes/records from the beginning cannot jump around, could rewind or back up convenient when medium was mag tape ...
Data Structure - knowledgebounce
... memory locations. This requires a large chunk of memory. Such a large chunk of memory might not be available at all times. Whereas linked list elements can be stored at different locations in memory. Which makes memory allocation easier. Q 25. What is a pointer? How can you declare a pointer to a st ...
... memory locations. This requires a large chunk of memory. Such a large chunk of memory might not be available at all times. Whereas linked list elements can be stored at different locations in memory. Which makes memory allocation easier. Q 25. What is a pointer? How can you declare a pointer to a st ...
Slides - SRU Computer Science
... – logarithmic search time for mostly balanced trees – proportional to depth of tree – log2N on average ...
... – logarithmic search time for mostly balanced trees – proportional to depth of tree – log2N on average ...
Binary Trees
... • Finding (or not finding) the values 26 – 30 requires the maximum of four comparisons; all other values require less than four • This also demonstrates why a value should occur only once in a tree; allowing duplicates requires additional searches: – If there is a duplicate, we must either locate th ...
... • Finding (or not finding) the values 26 – 30 requires the maximum of four comparisons; all other values require less than four • This also demonstrates why a value should occur only once in a tree; allowing duplicates requires additional searches: – If there is a duplicate, we must either locate th ...
empty table
... All items that hash to the same address are maintained in descending order of the key. Assume that a nil entry is less than all possible keys. A search can then terminate whenever a key less than that being searched for is found. On insertion when a collision occurs the keys are compared and the reh ...
... All items that hash to the same address are maintained in descending order of the key. Assume that a nil entry is less than all possible keys. A search can then terminate whenever a key less than that being searched for is found. On insertion when a collision occurs the keys are compared and the reh ...
・ P Q RIORITY
... described above, in O(nlogn) machine operations and O(n) memory cells. It also allows for an efficient treatment of a large number of updates, which is crucial in connection with spanning tree algorithms: Our data structure provides an implementation (described in [25]) of the Cheriton-Tarjan-Yao [3 ...
... described above, in O(nlogn) machine operations and O(n) memory cells. It also allows for an efficient treatment of a large number of updates, which is crucial in connection with spanning tree algorithms: Our data structure provides an implementation (described in [25]) of the Cheriton-Tarjan-Yao [3 ...
Data Structures So Far
... In the array based implementation The space used by the data structure is O(n) size, isEmpty, get and set run in O(1) time add and remove run in O(n) time ...
... In the array based implementation The space used by the data structure is O(n) size, isEmpty, get and set run in O(1) time add and remove run in O(n) time ...
Part 1 - Anna University
... Data Structure is a particular way of storing and organizing data in a computer so that it can be used efficiently. Different kinds of data structures are suited to different kinds of applications. Storing and retrieving can be carried out on data stored in both main memory and in secondary memory. ...
... Data Structure is a particular way of storing and organizing data in a computer so that it can be used efficiently. Different kinds of data structures are suited to different kinds of applications. Storing and retrieving can be carried out on data stored in both main memory and in secondary memory. ...
Optimal Color Range Reporting in One Dimension
... time where U is the size of the universe. The new results are listed at the bottom of Table 1. Our internal memory results are valid in the word RAM model of computation, the same model that was used in e.g. [1, 16, 17]. In this model, we assume that any standard arithmetic operation and the basic b ...
... time where U is the size of the universe. The new results are listed at the bottom of Table 1. Our internal memory results are valid in the word RAM model of computation, the same model that was used in e.g. [1, 16, 17]. In this model, we assume that any standard arithmetic operation and the basic b ...
Vectors, Lists, and Sequences
... Applications of Sequences • The Sequence ADT is a basic, general-purpose, data structure for storing an ordered collection of elements • Direct applications: – Generic replacement for stack, queue, vector, or list – small database (e.g., address book) ...
... Applications of Sequences • The Sequence ADT is a basic, general-purpose, data structure for storing an ordered collection of elements • Direct applications: – Generic replacement for stack, queue, vector, or list – small database (e.g., address book) ...
Lecture7PL
... Suppose each method preserves the representation invariant, assuming it is true initially. Then the representation invariant will always be true at the completion of each method. Assuming the code is not concurrent! ...
... Suppose each method preserves the representation invariant, assuming it is true initially. Then the representation invariant will always be true at the completion of each method. Assuming the code is not concurrent! ...
B-tree
In computer science, a B-tree is a tree data structure that keeps data sorted and allows searches, sequential access, insertions, and deletions in logarithmic time. The B-tree is a generalization of a binary search tree in that a node can have more than two children (Comer 1979, p. 123). Unlike self-balancing binary search trees, the B-tree is optimized for systems that read and write large blocks of data. B-trees are a good example of a data structure for external memory. It is commonly used in databases and filesystems.