you might solve the errors like following:
#include<stdio.h>
#define msize 4096
struct memory
{
int a[msize];
};
void read(struct memory m)
{
int i;
for(i=0;i<sizeof(msize);i++)
{
scanf("%d", &m.a);
}
}
int main()
{
struct memory m;
m.a[0]=250; // temperature value of 25,0
m.a[4]=01; // heater status OFF
m.a[8]=240; // temperature value of 24,0
m.a[12]=00; // heater status ON
m.a[16]=220; // temperature value of 22,0
m.a[20]=00; // heater status ON
read(m);
}