C Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

C Interview Questions

Questions Answers Views Company eMail

What is Heap?

3 8002

Is there any algorithm to search a string in link list in the minimum time?(please do not suggest the usual method of traversing the link list)

2294

how to add numbers without using arithmetic operators.

TCS,

14 16783

if a person is buying coconuts of Rs10,and then sell that coconuts of Rs9,with the loss of one rupee.After that the person became a millaniore.how?

Wipro,

9 11697

a 'c' program to tell that the set of three coordinates lie on a same line

Persistent,

3 14046

write a program to print sum of each row of a 2D array.

4 26636

write a program to arrange the contents of a 1D array in ascending order

4 19102

What will be the output of x++ + ++x?

MBT, Religare,

20 52597

write a Program to dispaly upto 100 prime numbers(without using Arrays,Pointer)

ADITI, iFlex, Infosys, Oracle, TCS, Unicops, Wipro,

26 81166

how is the examination pattern?

Wipro,

2019

Find Error if any in below code, Justify ur answer: struct xx { int a; struct yy { char c; struct xx* p; } struct yy* q; }

NDS,

3 8427

main() { int i = 1; int num[] = {1,2,3,4}; num[i] = i++; printf("%d", num[i]); } what will be the output? }

NDS, TCS,

22 33690

#define MAX(x,y) (x) > (y) ? (x) : (y) main() { int i = 10, j = 5, k = 0; k = MAX(i++, ++j); printf("%d %d %d", i,j,k); } what will the values of i , j and k? }

CDAC, GATE, NDS, TCS,

14 47758

fun(int x) { if(x > 0) fun(x/2); printf("%d", x); } above function is called as: fun(10); what will it print? }

NDS,

17 21917

#define DCHAR char* typedef char* TCHAR; if using these following variables will be declared like DCHAR ch1, ch2; TCHAR ch3, ch4; then what will be types of ch1, ch2, ch3 and ch4?

NDS,

6 11018

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Un-Answered Questions { C }

Explain what are compound statements?

1063

a=10;b= 5;c=3;d=3; if(a printf(%d %d %d %d a,b,c,d) else printf("%d %d %d %d a,b,c,d);

1142

What standard functions are available to manipulate strings?

1153

What is Dynamic memory allocation in C? Name the dynamic allocation functions.

1414

With the help of using classes, write a program to add two numbers.

1042

What does void main return?

1124

What is conio h in c?

1049

Write a function which takes as parameters one regular expression(only ? and * are the special characters) and a string and returns whether the string matched the regular expression.

1098

what is uses of .net

1742

Is c is a middle level language?

1068

why arguments can generally be passed to functions a) sending the values of the arguments b) sending the addresses of the arguments c) a & b d) none of the above

1130

main() { struct s1 { char *str; struct s1 *ptr; }; static struct s1 arr[] = { {"Hyderabad",arr+1}, {"Bangalore",arr+2}, {"Delhi",arr} }; struct s1 *p[3]; int i; < BR> for(i=0;i<=2;i++) p[i] = arr[i].ptr; printf("%s ",(*p)->str); printf("%s ",(++*p)->str); printf("%s ",((*p)++)->str); }

1438

Explain what is meant by high-order and low-order bytes?

1050

What is difference between arrays and pointers?

1076

How do I round numbers?

1011

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