Write a program that reads a single character from the user and prints a triangle made up of that character. The triangle should be 42 lines tall. If the user enters more than one character, give an error message and exit.

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A: Answer is given below

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A: Here is the complete solution of the above problem. See below steps.

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A: Here we have given code in python for the given problem. You can find the solution in step 2.

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A: The answer for the above mentioned question is given in the below steps for your reference.

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A: ANSWER:-

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A:

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Computer Fundamentals

The computer is termed computation. For calculating or computing something the device that has been used is known as the computer. Or we can say that for performing a fast arithmetic operation the device that has been used is a computer. Storing, processing, and retrieving are the main features of a computer.