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// Online C compiler to run C program online
#include <stdio.h>
#include <stdint.h>
int main() {
    char a;
    long double *b,*c;
    uint16_t p;
    uint16_t *x;
    b=NULL;
    c=NULL;
    char *ptr;
    
    a='G';
    p=102;
    x=&p;
    ptr=&a;
    
    printf("Value of variable 'a':%c\n",a);
    printf("Address of variable 'a':%p\n",&a);
    printf("Size of variable 'a':%lu\n",sizeof(a));
    printf("Size of variable 'ptr':%d\n",sizeof(ptr));
    printf("Size of variable '*ptr':%d\n",sizeof(*ptr));
    printf("Size of variable '*X':%d\n",sizeof(x));
    printf("Size of vriable 'p':%d\n",sizeof(p));
    printf("Addr. of variable ptr':%p\n",&ptr);
    return 0;
}