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Frequently Asked C Programming - Program Technical Interview Questions

(#M40031857) C QUESTION Keep an EYE

What is the output of this C code?

#include
int main()
{
int i = 10;
void *p = &i;
printf("%dn", (int)*p);
return 0;
}
a) Compile time error
b) Segmentation fault/runtime crash
c) 10
d) Undefined behaviour

Asked In C Rajendra Singh (11 years ago)

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(#M40018716) C QUESTION C- QUESTIONS Keep an EYE

What will be the output of the program?
#include

int main()
{
int y=128;
const int x=y;
printf("%dn", x);
return 0;
}
Options
1) 128
2) Garbage value
3) Error
4) 0

Asked In C (12 years ago)

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(#M40018743) C QUESTION C- QUESTIONS Keep an EYE

What will be the output of the program ?
#include

int main()
{
int i=3, *j, k;
j = &i;
printf("%dn", i**j*i+*j);
return 0;
}
Options
1) 30
2) 27
3) 9
4) 3

Asked In C (12 years ago)

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(#M40037088) C QUESTION C-PROGRAMING Keep an EYE

find the output
main( )
{
static int a[ ] = {0,1,2,3,4};
int *p[ ] = {a,a+1,a+2,a+3,a+4};
int **ptr = p;
ptr++;
printf(“n %d %d %d”, ptr-p, *ptr-a, **ptr);
*ptr++;
printf(“n %d %d %d”, ptr-p, *ptr-a, **ptr);
*++ptr;
printf(“n %d %d %d”, ptr-p, *ptr-a, **ptr);
++*ptr;
printf(“n %d %d %d”, ptr-p, *ptr-a, **ptr);
}

Asked In C gowtham (11 years ago)

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(#M40018720) C QUESTION C- QUESTIONS Keep an EYE

Input/output function prototypes and macros are defined in which header file?

Options
1) conio.h
2) stdlib.h
3) stdio.h
4) dos.h

Asked In C (12 years ago)

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(#M40018729) C QUESTION C- QUESTIONS Keep an EYE

What will be the output of the program ?
#include
#include

int main()
{
printf("%dn", strlen("123456"));
return 0;
}
Options
1) 6
2) 12
3) 7
4) 2

Asked In C (12 years ago)

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(#M40110295) C QUESTION c language Keep an EYE

integer x = 40, y = 35, z = 20, w = 10;
Comment about the output of the following two statements:
print x * y / z - w
print x * y / (z - w)

1) Differ by 80
2) Same
3) Differ by 50
4) Differ by 160

Asked In C PARNANDHI BHARATH (10 years ago)

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(#M40018740) C QUESTION C- QUESTIONS Keep an EYE

What will be the output of the program?
#include
int main()
{
char ch;
if(ch = printf(""))
printf("It mattersn");
else
printf("It doesn't mattersn");
return 0;
}
Options
1) It matters
2) It doesn't matters
3) matters
4) No output

Asked In C (12 years ago)

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(#M40018745) C QUESTION C- QUESTIONS Keep an EYE

What will be the output of the program?
#include
int main()
{
static int a[20];
int i = 0;
a[i] = i ;
printf("%d, %d, %dn", a[0], a[1], i);
return 0;
}
Options
1) 1, 0, 1
2) 1, 1, 1
3) 0, 0, 0
4) 0, 1, 0

Asked In C (12 years ago)

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(#M40018725) C QUESTION C- QUESTIONS Keep an EYE

What will be the output of the program?
#include
int main()
{
int i=-3, j=2, k=0, m;
m = ++i && ++j && ++k;
printf("%d, %d, %d, %dn", i, j, k, m);
return 0;
}
Options
1) -2, 3, 1, 1
2) 2, 3, 1, 2
3) 1, 2, 3, 1
4) 3, 3, 1, 2

Asked In C (12 years ago)

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