Question #26640

What is an algorithm? Write an algorithm to read five integers and find out if the values are in ascending order.

Expert's answer

In mathematics and computer science, an algorithm is a step-by-step procedure for calculations. Algorithms are used for calculation, data processing, and automated reasoning. More precisely, an algorithm is an effective method expressed as a finite list of well-defined instructions for calculating a function. Starting from an initial state and initial input (perhaps empty), the instructions describe a computation that, when executed, will proceed through a finite number of well-defined successive states, eventually producing "output" and terminating at a final ending state. The transition from one state to the next is not necessarily deterministic; some algorithms, known as randomized algorithms, incorporate random input.

An algorithm to read five integers and find out if the values are in ascending order:

for i=0, i<5, i=i+1:

read a[i];

for i=1, i<5, i=i+1:

if a[i-1]>=a[i]

{

print "the values are not in ascending order";

exit;

}

print "the values are in ascending order";

exit;

An algorithm to read five integers and find out if the values are in ascending order:

for i=0, i<5, i=i+1:

read a[i];

for i=1, i<5, i=i+1:

if a[i-1]>=a[i]

{

print "the values are not in ascending order";

exit;

}

print "the values are in ascending order";

exit;

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