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Program given below will allocate the memory of ___ bytes for pointer "ptr".

#include<stdio.h>
#include<stdlib.h>

int main()
{
int ptr;
ptr = (int)malloc(sizeof(int)4);
ptr = realloc(ptr,sizeof(int)2);
return 0;
}
a) 2
b) 4
c) 8
d) none of the mentioned

c) 8
Explanation:
We can also use the realloc() to make memory block smaller.

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Please tell me output of this program? #include<stdio.h> #include<stdlib.h> int main() { int ptr; ptr = (int )calloc(1,sizeof(int)); if (ptr != 0) printf("%dn",*ptr); return 0; } a) 0 b) -1 c) garbage value d) none of the mentioned	In which condition this prgram will print the string "google"? #include<stdio.h> #include<stdlib.h> int main() { int ptr; ptr = (int )malloc(sizeof(int)*10); if (ptr == NULL) printf("googlen"); return 0; } a) if the memory could not be allocated to the pointer "ptr" b) if the memory has been allocated to the pointer "ptr" successfully c) it will never print d) none of the mentioned