1.external variables can use it anywhere in the pgm &outside the pgm.

What is external and internal variables
What is dynamic memory allocation
what is storage classes in C

Question Posted / s.gayathri

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Answer Posted / s.gayathri

1.external variables can use it anywhere in the pgm &outside
the pgm.
internal variables can use only in the pgm.
2.allocation of memory during run time.it also save memory
space.
3.storage classes are type of variable.it has four type
global
extern
static
register

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