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Comp 171 data structures - PowerPoint PPT Presentation

COMP 171 Data Structures and Algorithms

COMP 171 Data Structures and Algorithms

COMP 171 Data Structures and Algorithms. Tutorial 10 Hash Tables. Data Dictionary. A data structure that supports: Insert Search Delete Examples: Binary Search Tree Red Black Tree B Tree Link List. Hash Table. An effective data dictionary Worst Case: ?(n) time

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244 views • 15 slides
COMP 171 Data Structures and Algorithms

COMP 171 Data Structures and Algorithms

COMP 171 Data Structures and Algorithms. Tutorial 9 B-Trees. Node Structure. n[x] the number of keys it have leaf[x] return True if x is a leaf, otherwise, return False x.key[i] the value of the i-th key x.c[i] the i-th pointer to the child node. Properties. Minimum degree: t

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250 views • 14 slides
COMP 171 Data Structures and Algorithms

COMP 171 Data Structures and Algorithms

COMP 171 Data Structures and Algorithms. Tutorial 9 B-Trees. Node Structure. n[x] the number of keys it have leaf[x] return True if x is a leaf, otherwise, return False x.key[i] the value of the i-th key x.c[i] the i-th pointer to the child node. Properties. Minimum degree: t

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145 views • 14 slides
COMP 171 Data Structures and Algorithms

COMP 171 Data Structures and Algorithms

COMP 171 Data Structures and Algorithms. Tutorial 6 Binary Search Trees. Binary Search Tree. Binary Tree Node X Key values in left subtree ? key value of X Key values in right subtree ? key value of X. BST Structure. Node Key Data Left (ptr to Node) Right (ptr to Node)

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190 views • 12 slides
COMP 171 Data Structures and Algorithms

COMP 171 Data Structures and Algorithms

COMP 171 Data Structures and Algorithms. Tutorial 6 Binary Search Trees. Binary Search Tree. Binary Tree Node X Key values in left subtree ? key value of X Key values in right subtree ? key value of X. BST Structure. Node Key Data Left (ptr to Node) Right (ptr to Node)

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122 views • 12 slides
COMP 171 Data Structures and Algorithms

COMP 171 Data Structures and Algorithms

COMP 171 Data Structures and Algorithms. Tutorial 3 Merge Sort & Quick Sort. Merge Sort. mergesort(A, left, right) if left < right then middle ? ? (left + right) / 2 ? mergesort(A, left, middle) mergesort(A, middle+1, right) merge(A, left, middle+1, right) end if

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143 views • 8 slides
COMP 171 Data Structures and Algorithms

COMP 171 Data Structures and Algorithms

COMP 171 Data Structures and Algorithms. Tutorial 3 Merge Sort & Quick Sort. Merge Sort. mergesort(A, left, right) if left < right then middle ? ? (left + right) / 2 ? mergesort(A, left, middle) mergesort(A, middle+1, right) merge(A, left, middle+1, right) end if

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84 views • 8 slides

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