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Frequently Asked c interview questions and answers for freshers Page 23

(#M40037098) C QUESTION HCL PLACEMENT PAPER Keep an EYE

On a machine where pointers are 4 bytes long, what happens when the following code is
executed.
main()
{
int x=0,*p=0;
x++; p++;
printf ("%d and %d\n",x,p);
}
a) 1 and 1 is printed
b) 1 and 4 is printed
c) 4 and 4 is printed
d) causes an exception
CHOOSE THE CORRECT OPTION

Asked In C gowtham (11 years ago)

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(#M40153401) C QUESTION OUTPUT Keep an EYE

#include
void main()
{
float p;
p=3.2:
printf("p/2*6",%d):
}

Asked In C venkat (10 years ago)

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(#M40029233) C QUESTION C Keep an EYE

output??
#include
main()
{i
nt a[2][2][2] = { {10,2,3,4}, {5,6,7,8} };
int *p,*q;
p=&a[2][2][2];
*q=***a;
printf("%d----%d",*p,*q);
}

Answer: SomeGarbageValue---1

Explanation: p=&a[2][2][2] you declare only two 2D arrays, but you are trying to access the
third 2D(which you are not declared) it will print garbage values.
*q=***a starting address of a is assigned integer pointer. Now q is pointing to starting address of
a. If you print *q, it will print first element of 3D array

Asked In C MAN (12 years ago)

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(#M40154465) C QUESTION Loop Keep an EYE

The body of the loop contains only a semicolon, known as a

Asked In C Bhargav (9 years ago)

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(#M40029300) C QUESTION C Keep an EYE

Q. main()
{
printf("%d", out);
}i
nt out=100;

A. Compiler error: undefined symbol out in function main.

Explanation: The rule is that a variable is available for use from the point of declaration. Even
though a is a global variable, it is not available for main. Hence an error.

Asked In C MAN (12 years ago)

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(#M40155268) C QUESTION String Keep an EYE

#include

int main()
{
char *names[] = { "Suresh", "Siva", "Sona", "Baiju", "Ritu"};
int i;
char *t;
t = names[3];
names[3] = names[4];
names[4] = t;
for(i=0; i<=4; i++)
printf("%s,", names[i]);
return 0;
}

Asked In C Anshul jain (9 years ago)

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(#M40153843) C QUESTION PROGRAMMING IN C Keep an EYE

PRGRAMMING IN C

Asked In C lalitha kumari kolukula (10 years ago)

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(#M40152921) C QUESTION OUT of the program Keep an EYE

main()
{
int i=5;
printf("%d",foo(foo(foo(foo(foo(foo(i)))))));
}
void foo(int i)
{
if(i%2)
return (i*(5-4)+i);
else
return i-3;
}

Asked In C anubhav kumar (10 years ago)

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(#M40154461) C QUESTION Make the array sorted in just one swap. Keep an EYE

Given an array of non-negative integers. Find if the array can be sorted(ascending) in single swap of two numbers or not. ex1 :- A = [12,14,23,42,28,33,39,25,45] should return true. since swapping 42 and 25 will sort the array A. ex2 :- A = [12,14,23,42,28,33,22,25,45] should return false.

Asked In C Tripti Garg (9 years ago)

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(#M40153400) C QUESTION ERROR Keep an EYE

#include
void main()
{
int a,c,f:
printf("acf",%d):
}

Asked In C venkat (10 years ago)

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