C - Data Types - Discussion

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Q.

extern int i; //Declaring the variable i.

int i=25; //Initializing the variable.
extern int i; //Again declaring the variable i.
#include
int main(){
extern int i; //Again declaring the variable i.
printf("%d",i);
return 0;
}
A. 0 B. 2
C. 25 D. error

Answer: Option C
Explaination:

A particular extern variable can be declared many times but we can initialize at only one time.


Discussion

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