LG

1.

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
2.

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
3.

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
4.

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

a. 4
b. 512
c. 1020
d. 1024
5.

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

a. 1
b. 225
c. 15
d. none of the above
6.

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
7.

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, 0
b. 0, 0, 0
c. 100, 4, 0
d. 40, 4, 0
8.

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
9.

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
10.

main()
{
int i, j;
scanf("%d %d"+scanf("%d %d", &i, &j));
printf("%d %d", i, j);
}

a. Runtime error.
b. 0, 0
c. Compile error
d. the first two values entered by the user
11.

main()
{
char *p = "hello world";
p[0] = 'H';
printf("%s", p);
}

a. Runtime error.
b. “Hello world” c. Compile error
d. “hello world”
12.

main()
{
char * strA;
char * strB = “I am OK”; memcpy( strA, strB, 6);
}

a. Runtime error.
b. “I am OK” c. Compile error
d. “I am O”
13.

How will you print % character?
a. printf(“\%”) b. printf(“\\%”) c. printf(“%%”) d. printf(“\%%”)
14.

const int perplexed = 2;
#define perplexed 3
main()
{
#ifdef perplexed
#undef perplexed
#define perplexed 4
#endif
printf(“%d”,perplexed); }

a. 0
b. 2
c. 4
d. none of the above
15.

struct Foo
{
char *pName;
};

main()
{
struct Foo *obj = malloc(sizeof(struct Foo));
strcpy(obj->pName,"Your Name");
printf("%s", obj->pName);
}

a. “Your Name” b. compile error
c. “Name” d. Runtime error
16.

struct Foo
{
char *pName;
char *pAddress;
};
main()
{
struct Foo *obj = malloc(sizeof(struct Foo));
obj->pName = malloc(100);
obj->pAddress = malloc(100);
strcpy(obj->pName,"Your Name");
strcpy(obj->pAddress, "Your Address");
free(obj);
printf("%s", obj->pName);
printf("%s", obj->pAddress);
}

a. “Your Name”, “Your Address” b. “Your Address”, “Your Address” c. “Your Name” “Your Name” d. None of the above
17.

main()
{
char *a = "Hello ";
char *b = "World";
printf("%s", stract(a,b));
}

a. “Hello” b. “Hello World” c. “HelloWorld” d. None of the above
18.

main()
{
char *a = "Hello ";
char *b = "World";
printf("%s", strcpy(a,b));
}

a. “Hello” b. “Hello World” c. “HelloWorld” d. None of the above
19.

void func1(int (*a)[10])
{
printf("Ok it works");
}

void func2(int a[][10])
{
printf("Will this work?");
}

main()
{
int a[10][10];
func1(a);
func2(a);
}

a. “Ok it works” b. “Will this work?” c. “Ok it works Will this work?” d. None of the above
20.

main()
{
printf("%d, %d", sizeof('c'), sizeof(100));
}

a. 2, 2
b. 2, 100
c. 4, 100
d. 4, 4
21.

main()
{
int i = 100;
printf("%d", sizeof(sizeof(i)));
}

a. 2
b. 100
c. 4
d. none of the above
22.

main()
{
int c = 5;
printf("%d", main|c);
}

a. 1
b. 5
c. 0
d. none of the above
23.

main()
{
char c;
int i = 456;
c = i;
printf("%d", c);
}

a. 456
b. -456
c. random number
d. none of the above
24.

oid main ()
{
int x = 10;
printf ("x = %d, y = %d", x,--x++);
}

a. 10, 10
b. 10, 9
c. 10, 11
d. none of the above
25.

main()
{
int i =10, j = 20;
printf("%d, %d\n", j-- , --i);
printf("%d, %d\n", j++ , ++i);
}

a. 20, 10, 20, 10
b. 20, 9, 20, 10
c. 20, 9, 19, 10
d. 19, 9, 20, 10
26.

main()
{
int x=5;
for(;x==0;x--) {
printf(“x=%d\n”, x--); }
}
a. 4, 3, 2, 1, 0
b. 1, 2, 3, 4, 5
c. 0, 1, 2, 3, 4
d. none of the above
27.

main()
{
int x=5;
for(;x!=0;x--) {
printf(“x=%d\n”, x--); }
}
a. 5, 4, 3, 2,1
b. 4, 3, 2, 1, 0
c. 5, 3, 1
d. none of the above
28.

main()
{
int x=5;
{
printf(“x=%d ”, x--); }
}
a. 5, 3, 1
b. 5, 2, 1,
c. 5, 3, 1, -1, 3
d. –3, -1, 1, 3, 5
29.

main()
{
unsigned int bit=256;
printf(“%d”, bit); }
{
unsigned int bit=512;
printf(“%d”, bit); }
}

a. 256, 256
b. 512, 512
c. 256, 512
d. Compile error
30.

main()
{
int i;
for(i=0;i<5;i++)
{
printf("%d\n", 1L << i);
}
}
a. 5, 4, 3, 2, 1
b. 0, 1, 2, 3, 4
c. 0, 1, 2, 4, 8
d. 1, 2, 4, 8, 16
31.

main()
{
signed int bit=512, i=5;

for(;i;i--)
{
printf("%d\n", bit = (bit >> (i - (i -1))));
}
}
512, 256, 128, 64, 32
b. 256, 128, 64, 32, 16
c. 128, 64, 32, 16, 8
d. 64, 32, 16, 8, 4
32.

main()
{
signed int bit=512, i=5;

for(;i;i--)
{
printf("%d\n", bit >> (i - (i -1)));
}
}

a. 512, 256, 0, 0, 0
b. 256, 256, 0, 0, 0
c. 512, 512, 512, 512, 512
d. 256, 256, 256, 256, 256
33.

main()
{
if (!(1&&0))
{
printf("OK I am done.");
}
else
{
printf(“OK I am gone.”); }
}

a. OK I am done
b. OK I am gone
c. compile error
d. none of the above
34.

main()
{
if ((1||0) && (0||1))
{
printf("OK I am done.");
}
else
{
printf(“OK I am gone.”); }
}

a. OK I am done
b. OK I am gone
c. compile error
d. none of the above
35.

main()
{
signed int bit=512, mBit;

{
mBit = ~bit;
bit = bit & ~bit ;

printf("%d %d", bit, mBit);
}
}

a. 0, 0
b. 0, 513
c. 512, 0
d. 0, -513