ALGORITHM
It is defined as
a sequence of instructions that describe a method for solving a problem. In
other words it is a step by step procedure for solving a problem.
v Should be written in simple English
v Each and every instruction should be precise
and unambiguous.
v Instructions in an algorithm should not be
repeated infinitely.
v Algorithm should conclude after a finite
number of steps.
v Should have an end point
v Derived results should be obtained only after
the algorithm terminates.
The following
are the primary factors that are often used to judge the quality of the
algorithms.
Time – To execute a program, the computer
system takes some amount of time. The lesser
is the time required, the better is the algorithm.
Memory – To execute a program, computer system
takes some amount of memory space.
The lesser is the memory required, the better is the algorithm.
Accuracy – Multiple algorithms may
provide suitable or correct solutions to a given problem, some of these may provide more accurate results than
others, and such algorithms may be suitable.
Example
Write an
algorithm to print „Good Morning”
Step 1: Start
Step 2: Print “Good Morning”
Step 3: Stop
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