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

C Interview Questions

Questions Answers Views Company eMail

write a program for the normal snake games find in most of the mobiles.

Accenture, Wipro,

2219

Write a program that takes a 5 digit number and calculates 2 power that number and prints it(should not use big integers and exponential functions)

HCL, IBM, Satyam, Vimal, Vimukti Technologies,

2 6750

how to reverse string "Hello World" by using pointers only. Without any temp var

1 7564

What has to put when we are inserting as assembly language code into the C code? or When we are inserting as assembly language code into the C code we have to insert one thing at the start and of the assembly language. What are they?

2 4060

what is the return type of printf

3 5629

what is difference between ANSI structure and C99 Structure?

Wipro,

1 4725

struct abc { unsigned int a; char b; float r; }; struct xyz { int u; struct abc tt; }ww; ww = (struct xyz*)malloc(sizeof(struct xyz)); will the memory be allocated for the inner structure also?

Wipro,

1 6533

Write a program that takes a 5 digit number and calculates 2 power that number and prints it.

1 3977

Snake Game: This is normal snake game which you can find in most of the mobiles. You can develop it in Java, C/C++, C# or what ever language you know.

Accenture, Gridco, IBM, Kevin IT, TCS, Vimukti Technologies,

7 12175

what is the difference b/w NULL and null?

HSBC, IBM,

3 6627

void main() { int a[]={1,2,3,4,5},i; for(i=0;i<5;i++) printf("%d",a++); getch(); }

3 8117

what is the meaning of java that is (J A V A) full form of JAVA

AKS University, Bhel, BNL, BPO, HCL, Peacecon,

71 262776

what type of questions arrive in interview over c programming?

1986

main() { int i; printf("%d", &i)+1; scanf("%d", i)-1; }

1 4764

In the below code, how do you modify the value 'a' and print in the function. You'll be allowed to add code only inside the called function. main() { int a=5; function(); // no parameters should be passed } function() { /* add code here to modify the value of and print here */ }

1 3052

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Un-Answered Questions { C }

How can I find the modification date of a file?

1229

What is difference between structure and union with example?

1008

Explain is it better to bitshift a value than to multiply by 2?

1145

Explain what are the different file extensions involved when programming in c?

1061

Write a program to swap two numbers without using a temporary variable?

1082

find the value of y y = 1.5x+3 for x<=2 y = 2x+5 for x>2

1960

Difference between MAC vs. IP Addressing

1104

Apart from dennis ritchie who the other person who contributed in design of c language.

1332

Explain data types & how many data types supported by c?

1033

Why is void main used?

1045

Difference between Function to pointer and pointer to function

1030

What is the use of parallelize in spark?

987

Explain what is the concatenation operator?

1116

The performance of an operation in several steps with each step using the output of the preceding step a) recursion b) search c) call by value d) call by reference

1176

What is the time and space complexities of merge sort and when is it preferred over quick sort?

1021

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