C Interview Questions
Questions Answers Views Company eMail

What is true about the following C Functions a.Need not return any value b.Should always return an integer c.Should always return a float d.Should always return more than one value.

TCS,

11 15015

Main must be written as a.the first function in the program b.Second function in the program c.Last function in the program d.any where in the program

CTS, HCL, TCS,

19 18393

Which of the following about automatic variables within a function is correct ? a.its type must be declared before using the variable b.they are local c.they are not initialised to zero d.they are global.

FCI, TCS,

6 10969




Write one statement equalent to the following two statements x=sqr(a); return(x); Choose from one of the alternatives a.return(sqr(a)); b.printf("sqr(a)"); c.return(a*a*a); d.printf("%d",sqr(a));

TCS,

6 7129

Which of the following about the C comments is incorrect ? a.commentscan go over multiple lines b.comments can start any where in the line c.a line can contain comments with out any language statements d.comments can occur within comments

TCS,

6 9367

What is the value of y in the following code? x=7;y=0; if(x=6) y=7; else y=1;

TCS,

12 15612

Which of the following is not an infinite loop ? a.while(1){ .... } b.for(;;){ ... } c.x=0; do{ /*x unaltered within theloop*/ ... }while(x==0); d.# define TRUE 0 ... while(TRUE){ .... }

TCS,

7 14562

what does the following function print? func(int i) { if(i%2)return 0; eale return 1; } main() { int =3; i=func(i); i=func(i); printf("%d",i);}

TCS,

9 10616




how does the C compiler interpret the following two statements p=p+x; q=q+y; a.p=p+x; q=q+y b.p=p+xq=q+y c.p=p+xq; q=q+y d.p=p+x/q=q+y

TCS,

4 13114

read the folllowing code # define MAX 100 # define MIN 100 .... .... if(x>MAX) x=1; else if(x

TCS,

4 12115

a memory of 20 bytes is allocated to a string declared as char *s then the following two statements are executed: s="Etrance" l=strlen(s); what is the value of l ? a.20 b.8 c.9 d.21

TCS,

4 6835

given the piece of code int a[50]; int *pa; pa=a; to access the 6th element of the array which of the following is incorrect? a.*(a+5) b.a[5] c.pa[5] d.*(*pa + 5)

TCS, amu,

6 13841

consider the following structure: struct num nam{ int no; char name[25]; }; struct num nam n1[]={{12,"Fred"},{15,"Martin"},{8,"Peter"},{11,Nicholas"}}; ..... ..... printf("%d%d",n1[2],no,(*(n1 + 2),no) + 1); What does the above statement print? a.8,9 b.9,9 c.8,8 d.8,unpredictable value

TCS,

4 6763

identify the in correct expression a.a=b=3=4; b.a=b=c=d=0; float a=int b=3.5; d.int a; float b; a=b=3.5;

TCS,

8 8852

regarding the scope of the varibles;identify the incorrect statement: a.automatic variables are automatically initialised to 0 b.static variables are are automatically initialised to 0 c.the address of a register variable is not accessiable d.static variables cannot be initialised with any expression

TCS,

1 5535


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Un-Answered Questions { C }

how to count no of words,characters,lines in a paragraph.

3195


write a program to convert a expression in polish notation(postfix) to inline(normal) something like make 723+* (2+3) x 7 (not sure) just check out its mainly printing expression in postfix form to infix.

1578


write a c programming using command line argument,demonstrate set operation(eg;union,intersection,difference) example output is c:>setop 12 34 45 1 union 34 42 66 c:>setop 12 34 1 42 66 c:>setop 12 34 diff 12 56 67 78 setop 12 34

925


hi... can anyone help me to make a two-dimensinal arrays in finding the sum of two elements plzzz. thnx a lot...

728


1) There is a singing competition for children going to be conducted at a local club. Parents have been asked to arrive at least an hour before and register their children’s names with the Program Manager. Whenever a participant registers, the Program Manager has to position the name of the person in a list in alphabet order. Write a program to help the Program Manager do this by placing the name in the right place each time the Program Manger enters a name. 2) the Event Manager has to send participants to the stage to perform in the order in which they registered. Write a program that will help the Event Manager know who to call to the stage to perform. The Logic should be in Data Structures

2095






Stimulate calculator using Switch-case-default statement for two numbers

1824


write an interactive C program that will encode or decode a line of text.To encode a line of text,proceed as follows. 1.convert each character,including blank spaces,to its ASCII equivalent. 2.Generate a positive random integer.add this integer to the ASCII equivalent of each character.The same random integer will be used for the entire line of text. 3.Suppose that N1 represents the lowest permissible value in the ASCII code,and N2 represents the highest permissible value.If the number obtained in step 2 above(i.e.,the original ASCII equivalent plus the random integer)exceeds N2,then subtract the largest possible multiple of N2 from this number,and add the remainder to N1.Hence the encoded number will always fall between N1 and N2,and will therefore always represent some ASCII character. 4.Dislay the characters that correspond to the encoded ASCII values.  The procedure is reversed when decoding a line of text.Be certain,however,that the same random number is used in decodingas was used in encoding.

1594


how logic is used

816


what are the 10 different models of writing an addition program in C language?

764


shorting algorithmS

1036


how is the examination pattern?

936


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 ) { }

1240


write a program to find the given number is prime or not

2452


A banker has a seif with a cipher. Not to forget the cipher, he wants to write it coded as following: each digit to be replaced with the difference of 9 with the current digit. The banker chose a cipher. Decipher it knowing the cipher starts with a digit different than 9. I need to write a program that takes the cipher from the keyboard and prints the new cipher. I thought of the following: Take the input from the keyboard and put it into a string or an array. Go through the object with a for and for each digit other than the first, substract it from 9 and add it to another variable. Print the new variable. Theoretically I thought of it but I don't know much C. Could you give me any kind of hint, whether I am on the right track or not?

826


Can you write the algorithm for Queue?

868