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

C Interview Questions

Questions Answers Views Company eMail

What is ambagious result in C? explain with an example.

Infosys,

2566

Derive the complexity expression for AVL tree?

1 4131

what is difference between declaring the pointer as int and char in c language?

3 13354

wt is diference between int and int pointer as same as float and float pointer and char and char pointer

CTS, Infosys,

8 13238

write a c program to change only the 3rd bit of the particular number such that other bits are not affected.. if bitnum=10(say.. it can be any no..

Bosch, Mind Tree,

10 30857

What is key word in c language?

ABC,

4 10078

write the output of following code .. main() { static int a[]={10,20,30,40,50}; int *ptr=a; static int arr[2][2]={1,2,3,4}; char str[]="ABCD * 4#"; char *s=str+2; int i,j; for(i=0;i<5,i++) printf("%d",*ptr++); for(i=0;i<2;i++) for(j=0;j<2;j++) printf("%d\n",*(*(n+i)+j)); printf("%c\n%c\n%c\n",*(str+2),*s++,*--s); }

1 4187

what is c programing

Wipro,

11 15054

how to swap two nubers by using a function with pointers?

1 4126

Write a c program to Find the name that you entered is male name or female name? Such as Sunjay is name of male and Payal is name of female

Infosys, Luminous,

5 20374

swapping of two numbers without using third variable using AND and OR operators

2 7380

why integer range between -327680to+32767

2 9299

Write c-code for 5+55+555+5555+55555+555555+5555555. Output will be it's answer...

TCS,

4 25025

main() { int i=5; printf("%d%d%d%d",i++,i--,i); }

10 13024

main() { int i=0; while(+(+i--)!=0) i-=i++; printf(i); }

3 5025

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Un-Answered Questions { C }

What is structure and union in c?

1090

What is scanf_s in c?

1075

How can a number be converted to a string?

1272

Can you please explain the difference between strcpy() and memcpy() function?

1029

What does sizeof return c?

1024

Explain the use of 'auto' keyword in c programming?

1081

What are the types of data files?

1167

What are Macros? What are its advantages and disadvantages?

1108

Explain what header files do I need in order to define the standard library functions I use?

1132

In a header file whether functions are declared or defined?

1096

What is external variable in c?

1030

Explain how can I write functions that take a variable number of arguments?

1047

What does *p++ do?

983

What is use of pointer?

1027

What is #define in c?

1001

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