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

C Interview Questions

Questions Answers Views Company eMail

how to swap two integers 1 and 32767 without using third variable

Microsoft, TCS,

11 16967

difference between ordinary variable and pointer in C?

2 10303

application attempts to perform an operation?

2031

how logic is used

2023

Write a C/C++ program that connects to a MySQL server and displays the global TIMEZONE.

2693

what is use of malloc and calloc?

1951

why programming language C is still used in operating system's kernel??

Wipro,

1 4128

c program to arrange digits in a no in ascending and descending order

1 20093

1.)how to find d most repeated word in a string? string ="how do you do"?? output should be do

AAS, Nagarro, Vuram,

1 21013

what value is returned to operating system after program execution?

2178

what will be maximum number of comparisons when number of elements are given?

1952

What is the output of the program #include #include void main() {0 int i,j=20; clrscr(); for(i=1;i<3;i++) { printf("%d,",i); continue; printf("%d",j); break; } getch(); }

CTS, Oracle,

4 9669

what is the c.

IBM, TCS,

3 5863

int n=1; while(1) { switch(n) { case 1:printf("a"); n++; continue; case 2:printf("b"); n++; continue; default : printf("c"); break; } break; }

1 5424

main() { int i; printf("%d",i^i); }

1 3399

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Un-Answered Questions { C }

Define and explain about ! Operator?

1044

Do string constants represent numerical values?

1448

What does sizeof return c?

1128

the factorial of non-negative integer n is written n! and is defined as follows: n!=n*(n-1)*(n-2)........1(for values of n greater than or equal to 1 and n!=1(for n=0) Perform the following 1.write a c program that reads a non-negative integer and computes and prints its factorial. 2. write a C program that estimates the value of the mathematical constant e by using the formula: e=1+1/!+1/2!+1/3!+.... 3. write a c program the computes the value ex by using the formula ex=1+x/1!+xsquare/2!+xcube/3!+....

23900

what value is returned to operating system after program execution?

2178

Tell us the use of fflush() function in c language?

1201

What are the keywords in c?

1172

What is the total generic pointer type?

1210

What is the use of pointers in C?

1133

Find MAXIMUM of three distinct integers using a single C statement

1113

What will the preprocessor do for a program?

1117

Why we write conio h in c?

1077

while initialization of array why we use a[][2] why not a[2][]...?

2400

What is a structural principle?

1240

Are c and c++ the same?

1103

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