LG Soft India Placement Pape

Instructions:
1. Please ignore any case-sensitive errors and un-included libraries.
2. You may use the back of this question paper for any rough work.

Q1.
main()
{
int i;
printf("%d", &i)+1;
scanf("%d", i)-1;
}

a. Runtime error.
b. Runtime error. Access violation.
c. Compile error. Illegal syntax
d. None of the above

Q2.
main(int argc, char *argv[])
{
(main && argc) ? main(argc-1, NULL) : return 0;
}

a. Runtime error.
b. Compile error. Illegal syntax
c. Gets into Infinite loop
d. None of the above

Q3.
main()
{
int i;
float *pf;
pf = (float *)&i;
*pf = 100.00;
printf("%d", i);
}

a. Runtime error.
b. 100
c. Some Integer not 100
d. None of the above

Q4.
main()
{
int i = 0xff;
printf("%d", i<<2);
}

a. 4
b. 512
c. 1020
d. 1024

Q5.
#define SQR(x) x * x
main()
{
printf("%d", 225/SQR(15));
}

a. 1
b. 225
c. 15
d. none of the above

Q6.
union u
{
struct st
{
int i : 4;
int j : 4;
int k : 4;
int l;
}st;
int i;
}u;

main()
{
u.i = 100;
printf("%d, %d, %d",u.i, u.st.i, u.st.l);
}

a. 4, 4, 0
b. 0, 0, 0
c. 100, 4, 0
d. 40, 4, 0

Q7.
union u
{
union u
{
int i;
int j;
}a[10];
int b[10];
}u;

main()
{
printf("%d", sizeof(u));
printf("%d", sizeof(u.a));
printf("%d", sizeof(u.a[0].i));
}

a. 4, 4, 4
b. 40, 4, 4
c. 1, 100, 1
d. 40 400 4

Q8.
main()
{
int (*functable[2])(char *format, ...) ={printf, scanf};
int i = 100;
(*functable[0])("%d", i);
(*functable[1])("%d", i);
(*functable[1])("%d", i);
(*functable[0])("%d", &i);
}

a. 100, Runtime error.
b. 100, Random number, Random number, Random number.
c. Compile error
d. 100, Random number

Q9.
main()
{
int i, j, *p;
i = 25;
j = 100;
p = &i; /* Address of i is assigned to pointer p */
printf("%f", i/(*p)); /* i is divided by pointer p */
}

a. Runtime error.
b. 1.00000
c. Compile error
d. 0.00000