Here are the questions and answers that i received from myteacher, but i find th

Question

Here are the questions and answers that i received from myteacher, but i find them questionable. I thought the program would print out a random number like-855433 or something like that since p is never assigned toanything and the data is randomized unless it is initialized. does anyone agree or am i missing something here. Also what is thesignificance of the *10 in the first questoin. thank you
int main(void){    int* p = malloc(sizeof(int)*10);    printf(“%d”, p[10]);    free(p); } What does this print -10 answer
int main(void){    int* p = malloc(10);    printf(“%d”,p[3]); } What does this print -3answer Here are the questions and answers that i received from myteacher, but i find them questionable. I thought the program would print out a random number like-855433 or something like that since p is never assigned toanything and the data is randomized unless it is initialized. does anyone agree or am i missing something here. Also what is thesignificance of the *10 in the first questoin. thank you
int main(void){    int* p = malloc(sizeof(int)*10);    printf(“%d”, p[10]);    free(p); } What does this print -10 answer
int main(void){    int* p = malloc(10);    printf(“%d”,p[3]); } What does this print -3answer What does this print -3answer

Explanation / Answer

//Hope this will help you.

//the significance of *10 is the you are allocating the memory forthe 10 integers.
//like if sizeof(int) = 4 , then 4*10 =40 , which will able to keep10 integers.




int main(void){    int* p = malloc(sizeof(int)*10);

//we have allocated the memory for 10integers, p[0] to p[9] , so p[10] is out of bound memory,
//hence it must be garbage, or may give segmentation fault.

   printf(“%d”,p[10]);      
   free(p); }



int main(void){    int* p = malloc(10);

//similarly here, we are allocating but notinit the memory, hence will give any garbagevalue,
   printf(“%d”,p[3]); }

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