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How do you judge an experienced C programmer by only five questions?

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C++ Tutor; Make it easy.

I ask the below questions: 1) Declare a structure with int, float and char variables. (This will lead to structure padding in C, then full details of structure padding like... what is it? why it is required?) 2) Pointers... what is the best use of pointers? Why pointers required? What happens when a...
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I ask the below questions:

1) Declare a structure with int, float and char variables. (This will lead to structure padding in C, then full details of structure padding like... what is it? why it is required?)

2) Pointers... what is the best use of pointers? Why pointers required? What happens when a pointer is allocated memory and when it got freed?

3) Memory layout of a program... Heap, Stack.

4) What happens when a function is called?

5) What happens when a C program is compiled? Phases like preprocessing, compilation. And about few compiler flags like -g, -O3, -E.

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You can choose 5 Questions on leetcode.com, based on 5 different topics/concepts to test his/her strength in C language. It is one thing to understand C fundamentals but is another, to apply what you learn practically.
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