2 Algorithm Analysis And Complexity

Data Structures and Algorithms · Unit 2

Algorithm Analysis and Complexity

Exam-focused notes for Algorithm Analysis and Complexity (Data Structures and Algorithms, BIT201): what the TU syllabus asks and how it has actually been tested, with 5 solved past questions from this unit.

What this unit covers

  • Definition of algorithm analysis
  • Big O notation with examples
  • Omega notation with examples
  • Time complexity definition and measurement
  • Space complexity definition and measurement
  • Asymptotic analysis fundamentals

Time complexity definition and measurement

20825 marks

Define time and space complexity. Discuss about Round Robin Algorithm for MST. [1+4]

--- (a) Time and Space Complexity Time complexity is a measure of the amount of time (number of basic operations) an algorithm takes to complete as a function of the input size n. It describes how the running time grows with increasing input. Example: Linea...

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20795 marks

What is time complexity? Explain big oh notation with example. [5]

Time complexity is a measure of the amount of time (or number of basic operations) an algorithm takes to complete as a function of the size of its input n. - It does not measure actual clock time, but rather the growth rate of operations relative to input s...

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Space complexity definition and measurement

20805 marks

What is space complexity? Explain omega notation with example. [5]

--- Space complexity is the amount of memory space required by an algorithm to run as a function of the input size n. It includes: - Instruction space - space required to store the compiled version of the program instructions. - Data space - space required ...

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Big O notation with examples

20785 marks

Explain big oh(O) notation with suitable example. [5]

Big Oh notation (O) is used to describe the upper bound of an algorithm's running time or space complexity. It represents the worst-case scenario of an algorithm's growth rate. Formally, a function f(n) = O(g(n)) if and only if there exist positive constant...

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Definition of algorithm analysis

05 marks

Write short notes on a.) Analysis of Algorithm Write short notes on b.) Representation of Graph [2.5+2.5]

Analysis of Algorithm refers to the process of evaluating the efficiency of an algorithm in terms of the resources it consumes, primarily time and space. - To predict the behavior of an algorithm before implementation. - To compare multiple algorithms solvi...

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