Storage Classes in C Programming

Program 1

// Implementation of storage classes
#include<stdio.h>
#include<conio.h>
void display();
extern int a=10;
 auto int b=100;
int main()
{
     system("cls");
     
     display();
     printf("\n%d",a);
     return 0;  
}
void display()
{
     printf("\n%d",a);
     a=a+5;
}