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,

2638

Derive the complexity expression for AVL tree?

1 4187

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

3 13503

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

CTS, Infosys,

8 13491

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 31144

What is key word in c language?

ABC,

4 10185

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 4274

what is c programing

Wipro,

11 15383

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

1 4205

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 20548

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

2 7479

why integer range between -327680to+32767

2 9398

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

TCS,

4 25212

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

10 13353

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

3 5161

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Un-Answered Questions { C }

When should structures be passed by values or by references?

1043

where are auto variables stored? What are the characteristics of an auto variable?

1076

What is difference between function overloading and operator overloading?

1092

How can a program be made to print the name of a source file where an error occurs?

1227

what is use of malloc and calloc?

1906

What is difference between Structure and Unions?

1256

What is c language used for?

988

why do some people write if(0 == x) instead of if(x == 0)?

1081

What is the use of function in c?

1195

What is dynamic variable in c?

1034

Explain what does it mean when a pointer is used in an if statement?

1068

What are the uses of null pointers?

1127

write a program in C that prompts the user for today's date,tomorrow's date and display the results.Use structures for today's date,tomorrow's date and an array to hold the days for each month of the year.

5463

What is realloc in c?

1115

What is array of structure in c?

1184

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