what is pre-processor in C++?


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What is ios :: in in c++?

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Why do we use pointers in c++?

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Brief explaination about #include<iostream.h>, cin and cout

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What is the use of vtable?

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Can a constructor be private?

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What is lazy initialization in c++?

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A company pays its salespeople on a commission basis. The salespeople receive $200 per week plus 9 percent of their gross sales for that week. For example, a saleperson who sells $5000 worth of merchandise in a week receives $200 plus 9 percent of $5000, or a total of $650. You have been supplied with a list of items sold by each salesperson. The values of these items are as follows: Item Value A 239.99 B 129.75 C 99.95 D 350.89 Write a program that inputs one salesperson's items sold in a week (how many of item A? of item B? etc.) and calculates and displays that salesperson's earnings for that week.

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Am studying basic c++ programming, have been given the following assignment. Design a linear program to calculate the maximum stress a material can withstand given a force and a diameter of a circle. To find the required area pi should be defined. Have most of the program sorted out but am at a loss as to how to show the calculations required. Can anyone help?

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What is the difference between while and do while loop?

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Array base access faster or pointer base access is faster?

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What do you mean by storage classes?

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What is the main purpose of c++?

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