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What is an algorithm? What are the characteristics of a good algorithm?
An algorithm is "a step-by-step process for accomplishing some task'' An algorithm can be given in many ways. For example, it can be written down in English (or French, or any other ''natural'' language). Though, we are interested in algorithms which have been precisely specified using an appropriate mathematical formalism--like as a programming language.
Each algorithm should have the following three characteristics:
1. Input: The algorithm should take zero or more input.
2. Output: The algorithm should produce one or more outputs.
3. Definiteness: Each and every step of algorithm should be described unambiguously.
Example of worse case of time
AVL tree An AVL tree is a binary search tree in which the height of the left and right subtree of the root vary by at most 1 and in which the left and right subtrees are again
Q. In the given figure find the shortest path from A to Z using Dijkstra's Algorithm. Ans: 1. P=φ; T={A,B,C,D,E,F,G,H,I,J,K,L,M,Z} Let L(A)
explain quick sort algorithm
Big oh notation (O) : The upper bound for the function 'f' is given by the big oh notation (O). Considering 'g' to be a function from the non-negative integers to the positive real
A graph G might be defined as a finite set V of vertices & a set E of edges (pair of connected vertices). The notation utilized is as follows: Graph G = (V, E) Consider the g
Q. Write down any four applications or implementation of the stack. Ans. (i) The Conversion of infix to postfix form (ii)
Ask question find frequency count of function- {for(i=1;i {for(j=1;j {for(k=1;k } } }
Thread By changing the NULL lines in a binary tree to special links known as threads, it is possible to perform traversal, insertion and deletion without using either a stack
Merging 4 sorted files having 50, 10, 25 and 15 records will take time O (100)
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