Explain what are preprocessor directives?
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what is the difference between. system call and library function?
What is sorting in c plus plus?
What are register variables? What are the advantage of using register variables?
String concatenation
Why do we use int main instead of void main in c?
What is meaning of tree
Write a program to print all permutations of a given string.
write a program to search for an element in a given array. If the array was found then display its position otherwise display appropriate message in c language
related to rdbms query .
Explain what does the function toupper() do?
What are variables and it what way is it different from constants?
write a program in 'c' to find the value of p[i+1]^n.p,i,n are arguments of a macro and n is a integer