C Programming - Arrays

1.	What will be the output of the program ? #include<stdio.h> int main() { void fun(int, int[]); int arr[] = {1, 2, 3, 4}; int i; fun(4, arr); for(i=0; i<4; i++) printf("%d,", arr[i]); return 0; } void fun(int n, int arr[]) { int *p=0; int i=0; while(i++ < n) p = &arr[i]; *p=0; }
	A. 2, 3, 4, 5 B. 1, 2, 3, 4 C. 0, 1, 2, 3 D. 3, 2, 1 0

2.	What will be the output of the program ? #include<stdio.h> void fun(int **p); int main() { int a[3][4] = {1, 2, 3, 4, 4, 3, 2, 8, 7, 8, 9, 0}; int *ptr; ptr = &a[0][0]; fun(&ptr); return 0; } void fun(int **p) { printf("%d\n", **p); }
	A. 1 B. 2 C. 3 D. 4

3.

What will be the output of the program ? #include<stdio.h> int main() { static int arr[] = {0, 1, 2, 3, 4}; int *p[] = {arr, arr+1, arr+2, arr+3, arr+4}; int **ptr=p; ptr++; printf("%d, %d, %d\n", ptr-p, *ptr-arr, **ptr); *ptr++; printf("%d, %d, %d\n", ptr-p, *ptr-arr, **ptr); *++ptr; printf("%d, %d, %d\n", ptr-p, *ptr-arr, **ptr); ++*ptr; printf("%d, %d, %d\n", ptr-p, *ptr-arr, **ptr); return 0; }

A. 0, 0, 0 1, 1, 1 2, 2, 2 3, 3, 3 B. 1, 1, 2 2, 2, 3 3, 3, 4 4, 4, 1 C. 1, 1, 1 2, 2, 2 3, 3, 3 3, 4, 4 D. 0, 1, 2 1, 2, 3 2, 3, 4 3, 4, 5

4.	What will be the output of the program if the array begins at 65472 and each integer occupies 2 bytes? #include<stdio.h> int main() { int a[3][4] = {1, 2, 3, 4, 4, 3, 2, 1, 7, 8, 9, 0}; printf("%u, %u\n", a+1, &a+1); return 0; }
	A. 65474, 65476 B. 65480, 65496 C. 65480, 65488 D. 65474, 65488

5.	What will be the output of the program in Turb C (under DOS)? #include<stdio.h> int main() { int arr[5], i=0; while(i<5) arr[i]=++i; for(i=0; i<5; i++) printf("%d, ", arr[i]); return 0; }
	A. 1, 2, 3, 4, 5, B. Garbage value, 1, 2, 3, 4 C. 0, 1, 2, 3, 4, D. 2, 3, 4, 5, 6,