Question

20)

What is the output of the following segment of C code:

int avg(int n, int* a);

int main () {

            int array[4]={1,0,6,9};

            printf("%d", avg(4, array)+ 1);

            system("pause");

            return 0;

}

int avg(int n, int* a) {

int i, sum=0;

for (i=0;i<n;i++) {

sum+=a[i];

}

return sum/n;

}

1. a) 16
2. b) 5
3. c) 4
4. d) 8

21)

What is the output of the following segment of C code:

int x = 2;

int y = 3;

do {

switch (x) {

            case -1:           y+=2;

                                    x=3;

                                    break;

            case 1:            x--;

                                    y++;

            case 2:            x--;

                                    y--;

            case 3:            break;

            default:            x = y;

            }

} while (x != 3);

printf("%d", y);

a) 2

b) 3

c) 5

d) 4

22)

What is the output of the following segment of C code:

int x=3, y=2, z=4;

while (x!=y) {

if (x>y && z > y) {

x--;

y=z+1;

} else if (z < y) {

z=y;

} else y--;

}

printf("%d", z);

a) 4

b) 5

c) 3

d) 6

23)

What is the output of the following segment of C code:

int a =4;

int b=2;

a=pow(a,b);

printf(“%d”, a);

a) 18

b) 16

c) 6

d) 8

Answer 1

20)

5

Explanation:- the method return avg of array that is 4 and print 4+1=5

21)2

22) a) 4

23)b 16