C Programming
What does the following declaration mean?int (*ptr)[10];

ptr is an pointer to array
ptr is an array of 10 integers
ptr is array of pointers to 10 integers
ptr is a pointer to an array of 10 integers

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C Programming
String concatenation means -

Comparing the two strings to define the larger one.
Merging two strings.
Extracting a substring out of a string.
Combining two strings.
Partitioning the string into two strings.

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