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

C Interview Questions

Questions Answers Views Company eMail

who will call your main function in c under linux?

2 6338

Write a Program to print this triangle: * ** * **** * ****** * ******** * ********** use two nested loops.

MIT, TCS,

12 29554

What is the difference between null pointer and void pointer

CTS, Manforce, MAQ Software,

10 47769

why r u join this company? give solid resons.

IBM, Infosys, TCS,

16 28493

Write a C program that computes the value ex by using the formula ex =1+x/1!+x2/2!+x3+3!+………….

1 16093

what is the advantage of using SEMAPHORES to ORDINARY VARIABLES???

NSN,

2 7516

main() { float a=8.8; double b=8.8; if(a==b) printf("Equal"); else printf("not equal"); getch(); } what is the output? with reason

CSC,

6 11546

plssssss help !!....using array.. turbo c.. create a program that will accept number of words to be consored. .a word must not exceed 10 characters long .the text to be entered will be no longer than 200 characters .there will be no 10 words example: enter number of words to be censor: 5 enter words to censor: windows office microsoft bill gates enter text to censor: bill gates founded microsoft and makes office and windows sample output: founded and makes and

1 5947

number 2 plssssss help !!....using array.. turbo c.. create a program that will accept a number and determine if it is a happy number or an unhappy number.. example: enter a number : 7 7*7=49 then 4 and 9 4*4 and 9*9== 16 + 18 gives you 97 then 9 and 7 9*9 and 7*7 == 81 + 49 gives you 130 then 1 and 3 1*1 and 3*3 == 1 + 9 gives you 10 1*1 gives you 1 sample output: 7= 49= 16+81= 97= 81+49=130 =1+9=10 =1 "7 is a happy number" . if the last number is 2 then the number being inputed is not a happy number.

3 7336

Convert the following expression to postfix and prefix X $ Y Z - M + N + P / Q / (R + S)

2 13003

Convert the following expression to postfix and prefix (A+B) * (D-C)

Satyam,

3 8379

plz answer..... a program that reads non-negative integer and computes and prints its factorial

2 5803

plz answer.. a program that takes a string e.g. "345" and returns integer 345

4 6856

plz answer....A program that takes 3 variables e.g a,b,c in as seperate parameters and rotates the values stored so that value goes a to b, b to c and c to a .

3 8329

plz answer.... write a program that reads line (using getline) e.g."345", converts each line to an integer using "atoi" and computes the average of all the numbers read. also compute the standard deviation.

1 3770

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Un-Answered Questions { C }

When should the register modifier be used? Does it really help?

970

I need testPalindrome and removeSpace #include #define SIZE 256 /* function prototype */ /* test if the chars in the range of [left, right] of array is a palindrome */ int testPalindrome( char array[], int left, int right ); /* remove the space in the src array and copy it over to the "copy" array */ /* set the number of chars in the "copy" array to the location that cnt points t */ void removeSpace(char src[], char copy[], int *cnt); int main( void ) { char c; /* temporarily holds keyboard input */ char string[ SIZE ]; /* original string */ char copy[ SIZE ]; /* copy of string without spaces */ int count = 0; /* length of string */ int copyCount; /* length of copy */ printf( "Enter a sentence:\n" ); /* get sentence to test from user */ while ( ( c = getchar() ) != '\n' && count < SIZE ) { string[ count++ ] = c; } /* end while */ string[ count ] = '\0'; /* terminate string */ /* make a copy of string without spaces */ removeSpace(string, copy, ©Count); /* print whether or not the sentence is a palindrome */ if ( testPalindrome( copy, 0, copyCount - 1 ) ) { printf( "\"%s\" is a palindrome\n", string ); } /* end if */ else { printf( "\"%s\" is not a palindrome\n", string ); } /* end else */ return 0; /* indicate successful termination */ } /* end main */ void removeSpace(char src[], char copy[], int *cnt) { } int testPalindrome( char array[], int left, int right ) { }

2686

Combinations of fibanocci prime series

1618

What is the use of header?

1094

Write a program to print factorial of given number without using recursion?

996

What is default value of global variable in c?

994

How is a pointer variable declared?

1098

How is pointer initialized in c?

1026

What is assignment operator?

1059

How can you find out how much memory is available?

1072

Why cant I open a file by its explicit path?

1035

What is bubble sort in c?

1055

Dont ansi function prototypes render lint obsolete?

1135

When was c language developed?

1196

What is dynamic dispatch in c++?

1066

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