Please explain this ...

#include<stdio.h>
int main()
{
 int *p[10];
 printf("%d",sizeof(*p));
 return 0;
}

Output is 4

For this program ....

#include<stdio.h>
int main()
{
 int *p[10][20];
 printf("%d",sizeof(*p));
 return 0;
}

Output is 80 (10*20*sizeof(int))

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