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www.cquestions.com/2010/10/c-interview-questions-and-answers.html 2/35

}

}

Solution: 3

void main(){

switch(printf("Hello world")){

}

}

Hide

2

Swap two variables without using third variable.

Explanation:

#include

intmain(){

inta=5,b=10;

//process one a=b+a;

b=a-b;

a=a-b;

printf("a= %d b= %d",a,b);

//process two

a=5;

b=10;

a=a+b-(b=a);

printf("\na= %d b= %d",a,b);

//process three

a=5;

b=10;

a=a^b;

b=a^b;

a=b^a;


//process four

a=5;

b=10;

a=b-~a-1;

b=a+~b+1; a=a+~b+1;


//process five

a=5,

b=10;

a=b+a,b=a-b,a=a-b;


return 0;}

Hide

3

What is dangling pointer in c?

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Explanation:

Dangling pointer:

If any pointer is pointing the memory address of any var

after some variable has deleted from that

location while pointer is still pointing such memory locat

pointer is known as dangling pointer and this problem is

dangling pointer problem.

Initially:

Later:

For example:

What will be output of following c program?

#include

int*call();

intmain(){

int*ptr;

ptr=call();

fflush(stdin);

printf("%d",*ptr);

return 0;}

int* call(){

intx=25;

++x;

return&x;

}

Output: Garbage value

Note: In some compiler you may get warning message returning

of local variable or temporary

Explanation: variable x is local variable. Its scope and lif

within the function call hence after returning address of x

x became dead and pointer is still pointing ptr is still poi

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4/35



that location.

Solution of this problem:

Make the variable x is as static variable. In other word we

pointer whose pointing object has been deleted is called dan

pointer.

#include

int*call();

intmain(){

int*ptr;

ptr=call();

fflush(stdin);

printf("%d",*ptr);

return 0;

}

int* call(){

static intx=25;++x;

return&x;

}

Output: 26

Hide

4

What is wild pointer in c?

Explanation:

A pointer in c which has not been initialized is knownpointer.

Example:


intmain(){int*ptr;printf("%u\n",ptr);printf("%d",*ptr);return 0;

}

Output:Any addressGarbage value

Here ptr is wild pointer because it has not been initializis difference between the NULL pointer and wild pointer. Nupoints the base address of segment whilewild pointer doesany specific memory location.

Hide

5

What are merits and demerits of array in c?

Explanation:
http://www.blogger.com/blogger.g?blogID=959939550345671470#Exlink4http://www.blogger.com/blogger.g?blogID=959939550345671470#Exlink3


5/35



Merits:

(a) We can easily access each element of array.

(b) Not necessity to declare too many variables.

(c) Array elements are stored in continuous memory location.

Demerit:

(a) Wastage of memory space. We cannot change size of arr

run time.

(b) It can store only similar type of data.

Hide

6Do you know memory representation of inta = 7 ?

Explanation:

Memory representation of:

signed int a=7; (In Turbo c compiler)

signed short int a=7 (Both turbo c and Linux gcc compiler)

Binary equivalent of data 7 in 16 bit: 00000000 00000111

Data bit: 0000000 00000111 (Take first 15 bit form right sid

Sign bit: 0 (Take leftmost one bit)

First eight bit of data bit from right side i.e. 00000111 w

in the leftmost byte from right to left side and rest sev

data bit i.e. 0000000 will store in rightmost byte from rig

side as shown in the following figure:

7What is and why array in c?

Explanation:An array is derived data type in c programming language

store similar type of data in continuous memory location. Da

primitive type (int, char, float, double), address o

structure, pointer, function or another array.

Example of array declaration:

intarr[5];

chararr[5];

floatarr[5];

longdoublearr[5];

char* arr[5];int(arr[])();

double** arr[5];

Array is useful when:
http://www.blogger.com/blogger.g?blogID=959939550345671470#Exlink5http://4.bp.blogspot.com/-q99tgJBzfMA/TtfshSrczVI/AAAAAAAABgo/4eC_3DMO-rw/s1600/24.jpeg


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(a) We have to store large number of data of similar type. I

large number of similar kind of variable then it is very dif

remember name of all variables and write the program. For ex

//PROCESS ONE

intmain(){

intax=1;

intb=2;

intcg=5;

intdff=7;

intam=8;

intraja=0;

intrani=11;

intxxx=5;

intyyy=90;

intp;

intq;

intr;

intavg;

avg=(ax+b+cg+dff+am+raja+rani+xxx+yyy+p+q+r)/12;

printf("%d",avg); return 0;

}

If we will use array then above program can be written as:

//PROCESS TWO

intmain(){

intarr[]={1,2,5,7,8,0,11,5,50};

inti,avg;

for(inti=0;i


7/35



Array of pointers in c:

Array whose content is address of another variable is known

pointers. For example:

intmain(){

floata=0.0f,b=1.0f,c=2.0f;

float* arr[]={&a,&b,&c};

b=a+c;

printf("%f",arr[1]);

return 0;

}

Hide

8

Why we use do-while loop in c? Also tell any properties whic

Explanation:

It is also called as post tested loop. It is used wh

necessary to execute the loop at least one time. Syntax:

do {

Loop body

} while (Expression);

Example:

intmain(){

intnum,i=0;

do{

printf("To enter press 1\n");

printf("To exit press 2");

scanf("%d",&num);

++i;

switch(num){

case1:printf("You are welcome\n");break;

default: exit(0);

} }

while(i


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return 0;

}

Output: 3 3 4 4

(b)

intmain(){

doublei=5.63333;

do

printf("hi");

while(!i);

return 0;

}

Output: hi

(c)

intmain(){

intx=25,y=1;

do

if(x>5) printf(" ONE");

elseif(x>10)

printf(" TWO");

elseif(x==25)

printf(" THREE");

else

printf(" FOUR");

while(y--);

return 0;

}

Output: ONE ONE

Hide

9

What is the meaning of prototype of a function?

Explanation:

Prototype of a function

Declaration of function is known as prototype of a

Prototype of a function means

(1) What is return type of function?

(2) What parameters are we passing?

(3) For example prototype of printf function is:

intprintf(constchar*, );

I.e. its return type is int data type, its first parameter

character pointer and second parameter is ellipsis i.e.

number of arguments.

Hide
http://www.blogger.com/blogger.g?blogID=959939550345671470#Exlink9http://www.blogger.com/blogger.g?blogID=959939550345671470#Exlink8


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10

Write a c program to modify the constant variable in c?

Explanation:

You can modify constant variable with the help of poin

example:

#include

intmain(){

inti=10;

int*ptr=&i;

*ptr=(int*)20;

printf("%d",i);

return 0;

}

Output: 20

Hide

11

What is pointer to a function?

Explanation:

(1) What will be output if you will execute following code?int* function();intmain(){

autoint*x;int*(*ptr)();ptr=&function;x=(*ptr)();printf("%d",*x);

}int*function(){

staticinta=10;return&a;

}

Output: 10Explanation: Here function is function whose parameter istype and return type is pointer to int data type.

x=(*ptr)()=> x=(*&functyion)() //ptr=&function=> x=function() //From rule *&p=p=> x=&aSo, *x = *&a = a =10

(2) What will be output if you will execute following code?

intfind(char);int(*function())(char);intmain(){

intx;int(*ptr)(char);ptr=function();x=(*ptr)('A');printf("%d",x);return 0;

}intfind(charc){

returnc;}int(*function())(char){

returnfind;}

Output: 65Explanation: Here function whose name is function which pasdata type and returning another function whose parameter istype and return type is int data type.
http://www.blogger.com/blogger.g?blogID=959939550345671470#Exlink10


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x=(*ptr)(A)=> x= (*function ()) (A) //ptr=function ()//&find=function () i.e. return type of function ()=> x= (* &find) (A)=> x= find (A) //From rule*&p=p=> x= 65


char* call(int*,float*);int main(){

char*string;inta=2;floatb=2.0l;char*(*ptr)(int*,float*);ptr=&call;string=(*ptr)(&a,&b);printf("%s",string);return 0;

}char*call(int*i,float*j){

static char*str="c-pointer.blogspot.com";str=str+*i+(int)(*j);returnstr;

}

Output: inter.blogspot.comExplanation: Here call is function whose return type is p

characterand one parameter is pointer to int data type aparameter is pointer to float data type and ptr is pointefunction.str= str+*i+ (int) (*j)=c-pointer.blogspot.com + *&a+ (int) (*&b)//i=&a, j=&b=c-pointer.blogspot.com + a+ (int) (b)=c-pointer.blogspot.com +2 + (int) (2.0)=c-pointer.blogspot.com +4=inter.blogspot.com


charfar * display(charfar*);int main(){

charfar* string="cquestionbank.blogspot.com";charfar *(*ptr)(charfar *);ptr=&display;string=(*ptr)(string);printf("%s",string);

}charfar *display(charfar * str){

charfar * temp=str;temp=temp+13;*temp='\0';returnstr;

}

Output: cquestionbakExplanation: Here display is function whose parameter is pcharacter and return type is also pointer to character and ppointer.

temp is char pointertemp=temp+13temp=\0

Above two lines replaces first dot character by null chastring of variable string i.e."cquestionbank\0blogspot.com"

As we know %s print the character of stream up to null chara

Hide

12

Write a c program to find size of structure without using siz

operator?

Explanation:

struct ABC{


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inta;

floatb;

charc;

};

int main(){

structABC *ptr=(structABC *)0;

ptr++;

printf("Size of structure is: %d",*ptr);

return 0;

}

Hide

13

What is NULL pointer?

Explanation:

Literal meaning of NULL pointer is a pointer which is ponothing. NULL pointer points the base address of segment.

Examples of NULL pointer:

1. int*ptr=(char*)0;2. float*ptr=(float*)0;3. char*ptr=(char*)0;4. double*ptr=(double*)0;5. char*ptr=\0;6. int*ptr=NULL;

What is meaning of NULL?Answer:

NULL is macro constant which has been defined in the hstdio.h, alloc.h, mem.h, stddef.h and stdlib.h as#defineNULL 0

Examples:

(1)What will be output of following c program?

#include"stdio.h"int main(){

if(!NULL)printf("I know preprocessor");elseprintf("I don't know preprocessor");

}

Output: I know preprocessor

Explanation:!NULL = !0 = 1

In if condition any non zero number mean true.


#include"stdio.h"int main(){

inti;staticintcount;for(i=NULL;i


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printf("%d",NULL+sizeof(NULL));}

Output: 2Explanation:NULL + sizeof(NULL)=0 + sizeoof(0)=0+2 //size of int data type is two byte.

We cannot copy anything in the NULL pointer.

Example:


#include"string.h"int main(){

char*str=NULL;strcpy(str,"c-pointer.blogspot.com");printf("%s",str);return 0;

}

Output: (null)

Hide

14

What is difference between pass by value and pass by referenc

Explanation:

In c we can pass the parameters in a function in two differe

(a)Pass by value: In this approach we pass copy of actualin function as a parameter. Hence any modification oninside the function will not reflect in the actual variexample:

#include

int main(){ inta=5,b=10;

swap(a,b);

printf("%d %d",a,b);

return 0;

}

voidswap(inta,intb){

inttemp;

temp =a;

a=b;

b=temp;

}

Output: 5 10

(b)Pass by reference: In this approach we pass memory addrevariables in function as a parameter. Hence any modifiparameters inside the function will reflect in the actualFor example:

#incude

int main(){

inta=5,b=10;

swap(&a,&b);

printf("%d %d",a,b);

return 0;

}voidswap(int*a,int*b){

int *temp;

*temp =*a;

*a=*b;

*b=*temp;


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}

Output: 10 5

Hide

15

What is size of void pointer?

Explanation:

Size of any type of pointer in c is independent of data type

pointer is pointing i.e. size of all type of pointer (near

two byte either it is char pointer, double pointer, functio

or null pointer. Void pointer is not exception of this rule

of void pointer is also two byte.

Hide

16

What is difference between uninitialized pointer and null poi

Explanation:

An uninitialized pointer is a pointer which points unknolocation while null pointer is pointer which points a nullbase address of segment. For example:

int*p; //Uninitialized pointer

int*q= (int*)0; //Null pointer

#include

int*r=NULL; //Null pointer


#include

#include

int main(){

char*p; //Uninitialized pointer

char*q=NULL; //Null pointer;

strcpy(p,"cquestionbank");

strcpy(q,"cquestionbank");

printf("%s %s",p,q); return 0;

}

Output: cquestionbank (null)

Hide

17

Can you read complex pointer declaration?

Explanation:

Rule 1. Assign the priority to the pointer declaration cprecedence and associative according to following table.
http://www.blogger.com/blogger.g?blogID=959939550345671470#Exlink16http://www.blogger.com/blogger.g?blogID=959939550345671470#Exlink15http://www.blogger.com/blogger.g?blogID=959939550345671470#Exlink14


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(): This operator behaves as bracket operator or function op

[]: This operator behaves as array subscription operator.

*: This operator behaves as pointer operator not as multiplioperator.

Identifier: It is not an operator but it is name of pointerYou will always find the first priority will be assigned toof pointer.

Data type: It is also not an operator. Data types also inclu

modifier (like signed int, long double etc.)

You will understand it better by examples:

(1) How to read following pointer?

char (* ptr)[3]

Answer:Step 1: () and [] enjoys equal precedence. So rule of associwill decide the priority. Its associative is left to right spriority goes to ().

Step 2: Inside the bracket * and ptr enjoy equal precedence.rule of associative (right to left) first priority goes to psecond priority goes to *.

Step3: Assign third priority to [].

Step4: Since data type enjoys least priority so assign fourt

priority to char.

Now read it following manner:

ptris pointerto such one dimensional arrayof size three wcontent chartype data.
http://3.bp.blogspot.com/-8vcccBL3mxs/TtkcyHh9jpI/AAAAAAAABjs/Zd9KbiwNJso/s1600/complexa2.jpeghttp://3.bp.blogspot.com/-Kq2PDB1PLP0/TtkcygZM45I/AAAAAAAABj0/zK6obSY_7kY/s1600/complexa3.jpeghttp://4.bp.blogspot.com/-reWOgl16R2E/TtkczbwP_-I/AAAAAAAABj4/FZ_BGYHH2vM/s1600/complexa4.jpeghttp://4.bp.blogspot.com/-8ni_SqXDF6g/Ttkc1BkMUTI/AAAAAAAABkQ/AhjCBy-O-_8/s1600/precedance.jpeg


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float (* ptr)(int)

Answer:Assign the priority considering precedence and associative.

Now read it following manner:ptris pointerto such functionwhose parameter is int typereturn type is floattype data.

Rule 2: Assign the priority of each function parameter separread it also separately. Understand it through following exa


void (*ptr)(int (*)[2],int (*) void))

Answer:

Assign the priority considering rule of precedence and assoc


ptris pointerto such functionwhich first parameter is poione dimensional arrayof size two which contentinttype datasecond parameter is pointerto such functionwhich parameterand return type is int data type and return type is void.


int ( * ( * ptr ) [ 5 ] ) ( )

Answer:Assign the priority considering rule of precedence and assoc


ptris pointerto such arrayof size five which contentare pointerto such functionwhich parameter is void and retis inttype data.


double*(*(*ptr)(int))(double **,char c)
http://1.bp.blogspot.com/-9nCHl8QA9ro/TtkcwC2-OlI/AAAAAAAABjc/rjtdqaoRHIA/s1600/complex7.jpeghttp://1.bp.blogspot.com/-qDgrADZcNoo/TtkctjFMeUI/AAAAAAAABjI/RbMxDrFcLn8/s1600/complex3.jpeghttp://3.bp.blogspot.com/-VxAaKFbfYYY/Ttkcso8R5OI/AAAAAAAABjA/1kG8T7xADG0/s1600/c2.jpeg


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Answer:

Assign the priority considering rule of precedence and assoc


ptris pointerto functionwhich parameter is int type data

return type is pointerto functionwhich first parameter is

to pointer of double data type and second parameter is char

type and return type ispointerto doubledata type.


unsigned **(*(*ptr)[8](char const *, ...)

Answer:Assign the priority considering rule of precedence and assoc


ptris pointerto arrayof size eight and content of array

is pointerto functionwhich first parameter is pointer to cconstant and second parameter is variable number of argumentreturn type is pointerto pointerof unsignedint data type.

Hide

18

What are the parameter passing conventions in c?

Explanation:

1. pascal: In this style function name should (not necessaryuppercase .First parameter of function call is passed toparameter of function definition and so on.

2. cdecl: In this style function name can be both in the uor lower case. First parameter of function call is passed toparameter of function definition. It is default parameteconvention.

Examples:

1. What will be output of following program?

int main(){staticinta=25;voidcdecl conv1() ;voidpascal conv2();

conv1(a);conv2(a);return 0;;

}voidcdecl conv1(inta,intb){

printf("%d %d",a,b);}
http://www.blogger.com/blogger.g?blogID=959939550345671470#Exlink17http://3.bp.blogspot.com/-JNJoqqLRF_Y/TtkcvdmfduI/AAAAAAAABjU/7Uo_QCpTm3g/s1600/complex6.jpeghttp://3.bp.blogspot.com/-vI0xHhu5td0/Ttkcuk6QEZI/AAAAAAAABjM/jkhqr2_sv08/s1600/complex5.jpeg


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voidpascal conv2(inta,intb){

printf("\n%d %d",a,b);}

Output: 25 00 25

(2) What will be output of following program?

voidcdecl fun1(int,int);

voidpascal fun2(int,int);int main(){ inta=5,b=5;

fun1(a,++a); fun2(b,++b); return 0;}voidcdecl fun1(intp,intq){ printf("cdecl: %d %d \n",p,q);}voidpascal fun2(intp,intq){ printf("pascal: %d %d",p,q);}

Output:cdecl: 6 6pascal: 5 6


voidcdecl fun1(int,int);voidpascal fun2(int,int);int main(){ inta=5,b=5;

fun1(a,++a); fun2(b,++b); return 0;}voidcdecl fun1(intp,intq){ printf("cdecl: %d %d \n",p,q);}

voidpascal fun2(intp,intq){ printf("pascal: %d %d",p,q);}

Output:cdecl: 6 6pascal: 5 6


voidconvention(int,int,int);int main(){ inta=5;

convention(a,++a,a++); return 0;}void convention(intp,intq,intr){ printf("%d %d %d",p,q,r);}

Output: 7 7 5(5) What will be output of following program?

voidpascal convention(int,int,int);int main(){ inta=5;

convention(a,++a,a++); return 0;}voidpascal convention(intp,intq,intr){ printf("%d %d %d",p,q,r);}

Output: 5 6 6


voidpascal convention(int,int);int main(){ inta=1;


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convention(a,++a);

return 0;}voidpascal convention(inta,intb){ printf("%d %d",a,b);}

Output: 1 2


voidconvention(int,int);int main(){ inta=1;

convention(a,++a); return 0;}void convention(inta,intb){ printf("%d %d",a,b);}

Output: 2 2

Hide

19

What is the far pointer in c?

Explanation:

The pointer which can point or access whole the residenceRAM i.e. which can access all 16 segments is known as far po

Size of far pointer is 4 byte or 32 bit. Examples:

(1) What will be output of following c program?

int main(){intx=10;intfar *ptr;ptr=&x;printf("%d",sizeofptr);return 0;

}

Output: 4


int main(){intfar *near*ptr;printf("%d %d",sizeof(ptr) ,sizeof(*ptr));return 0;

}
http://1.bp.blogspot.com/-h0BBu2UagTA/Ttkc0OTeR_I/AAAAAAAABkE/-hwwbTWc5Kk/s1600/Concept5.jpeghttp://www.blogger.com/blogger.g?blogID=959939550345671470#Exlink18


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Output: 4 2Explanation: ptr is far pointer while *ptr is near pointer.


int main(){intfar *p,far *q;printf("%d %d",sizeof(p) ,sizeof(q));

}

Output: 4 4

First 16 bit stores: Segment numberNext 16 bit stores: Offset address

Example:

int main(){intx=100;intfar *ptr;ptr=&x;printf("%Fp",ptr);return 0;

}

Output: 8FD8:FFF4Here 8FD8 is segment address and FFF4 is offset address inhexadecimal number format.

Note: %Fp is used for print offset and segment address of poprintf function in hexadecimal number format.In the header file dos.h there are three macro functions tooffset address and segment address from far pointer and vice

1. FP_OFF():To get offset address from far address.2. FP_SEG():To get segment address from far address.3. MK_FP():To make far address from segment and offset addr

Examples:(1)What will be output of following c program?

#include"dos.h"int main(){

inti=25;intfar*ptr=&i;printf("%X %X",FP_SEG(ptr),FP_OFF(ptr));

}

Output: Any segment and offset address in hexadecimal numberrespectively.


#include"dos.h"int main(){

inti=25;intfar*ptr=&i;unsignedints,o;s=FP_SEG(ptr);o=FP_OFF(ptr);printf("%Fp",MK_FP(s,o));return 0;

}

Output: 8FD9:FFF4 (Assume)Note: Wecannot guess what will be offset address; segment a

and far address of any far pointer .These address are decideoperating system.

Limitation of far pointer:

We cannot change or modify the segment address of given farby applying any arithmetic operation on it. That is by using


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arithmetic operator we cannot jump from one segment to otherIf you will increment the far address beyond the maximum valoffset address instead of incrementing segment address it wiits offset address in cyclic order.

Example:

(q)What will be output of following c program?

int main(){inti;

charfar *ptr=(char*)0xB800FFFA;for(i=0;i


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2. Far pointerdoesnt normalize.

Hide

20

What is a cyclic property of data type in c? Explain with any

Explanation:

#include

intmain(){

signedcharc1=130;

signedcharc2=-130;

printf("%d %d",c1,c2);

return0;

}

Output: -126 126 (why?)

This situation is known as overflow of signed char.

Range of unsigned char is -128 to 127. If we will assig

greater than 127 then value of variable will be changed to

we will move clockwise direction as shown in the figure acc

number. If we will assign a number which is less than -12

have to move in anti-clockwise direction.

Hide

Pointers Interview questions

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TCS placement question +26 Recommend this on Google

104 comments:

blogsbyalo 10/29/10, 12:17 PM

great job!!Reply

vichy 11/9/10, 7:59 PM

Making a C program, to record the subjects taken by a student, the subjects removed, the approve

and calculate the GPA for that semester.

Ask C Questions
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Replies

The program should have the option of "going out"

Reply

Anonymous 12/8/10, 1:24 AM

Superb collection..thanks !!

just one bug to notify in Q.14..pr intf("Size of structure is: %d",*ptr); *ptr should be changed to ptr

Reply


Question 14 is correct one. No bug. It will work only Turbo c3.0

Reply


woov very good post.. thanks a lot to author...

Reply


superr collectionnnnnnn.............

Reply

Anonymous 1/29/11, 2:17 PM

great job what a super collectionnnnnnnnnnnn

Reply


i want a c program that will display this output:

A B C D E F G F E D C B A

A B C D E F F E D C B A

A B C D E E D C B A

A B C D D C B A

A B C C B AA B B A

A A

Reply

Narottam Singh MCA 1/14/12, 4:36 PM

// This program is written in JAVA language .Which language u r using u can change

public class BB5

{

public static void main(String aa[])

{

int n=20;

int a=1;int b=n/2;

int c=65+b;

for(int k=1;k


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Reply


good site .create site gives information for c++,java,DBMS,unix


#include

int main (){

unsigned int j;

unsigned char i;

for(j=0;j


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Replies

Reply

Replies

else

{

printf(" %c",--alphabet);

}

}

}

}

}

SAMPLE OUTPUT:

enter the number of lines you want to print : 5

A B C D E D C B A

A B C D D C B A

A B C C B A

A B B A

A A

if u want dat particular format enter the number of lines as 7....

Reply


Great work ..Lots of hard work ...thanks a lot..becz it helps me a lot

Reply

Anil Kumar 3/17/11, 8:30 AM

main()

{

float a=0.7;

if(a


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Reply

Swarna Chandru 8/22/13, 1:34 AM

thanks a lot

Raghu 4/13/11, 5:32 PM

main()

{

float a=0.7;if(a


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ABCDDCBA

ABCCBA

ABBA

AAA

Reply

Garden sheds 6/2/11, 6:10 PM

C is a very interesting language and this is a basic of all language, if we have no knowledge

understand c++, this is a 1st stage of all programing language.

Reply

java tutoria l 6/2/11, 6:13 PM

Great! this post is very help for me.

Reply


Great work...really worthable one

Reply


awesum collection...

Reply


Awesome awesome awesome awesome awesome.......

Reply


really...helpful

Reply


awesome awesome awesome awesome awesome awesome awesome awesome awesome aweso

work..............:))))))

Reply


great post

Reply


good but need little more

Reply

Talib Hussain 8/17/11, 7:39 PM

all questions are very easy questions pls post difficult question and their answers

Reply


good

Reply

Gajanan 8/20/11, 2:38 PM

Thanks u vary much to create such super blog

Reply
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thank you sooooooooooooooooooooooo much...i find these questions so very useful...i could now

placement interviews..thanks once again..

Reply


I need answer for this question immediately before 3 hrs .. pls help me

1.write a c program to divide the no. 73897869by 256 without using +,-,/,* and loop statement??

Reply


and this too!

write 2 main () independent functions without using comments in a single program..pls help me friend

the answer immediately

Reply

Tanmay Chakrabarty 8/26/11, 12:52 PM

Wow....thats great. I have my Class Notes on C Programming. I shared them in my blog

Tanmay On Run

But your posts are much more helpful, My post will be helpful for class notes. But these posts are h

Nice to find your blog.

Reply

jigne sh 9/8/11, 2:27 AM

This is awesome post and good imformation

C interview questions

Reply

anurag_dake 9/8/11, 10:27 AM

1)void main()

{

float a=2.1;

if(a==2.1)

printf("TE");

else

printf("BE");

getch();

}

------------------------------------------------------

Whats the OUTPUT of Following Program

2)void main()

{

float a=2.0;

if(a==2.0)

printf("TE");else

printf("BE");

getch();

}

give Ans with reason....:)

Reply

Ritesh kumar 9/8/11, 11:00 AM

Hi Anurag,

Please check the question (1) of the following link: http://cquestionbank.blogspot.com/2009/09/c-ope

detial.html

I hope it will help you.

Reply


thanks a lot sir..........

Reply
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RAJARAJAN 9/15/11, 2:46 AM

super..................site,&&&&&&&&&&&&&&&

super collection.

Reply


very very helpful, thank you!

Reply

sudhir10/4/11, 9:12 PM

excellent work

Reply

Anonymous 10/11/11, 10:02 PM

thanks............

supper.....D:)

Reply

Anonymous 10/12/11, 10:34 PM

i didnt even expect this much of material ..thanq : ) i think it definitly helps me alot..:)

Reply

ali.... 10/25/11, 12:30 AM

In the program for dangling pointer if ptr=call()

is written before clrscr() then it prints garbage value ...if written after it prints 26 correctly......Plz exp

turbo C

Reply

( ) 10/28/11, 8:40 AM

good very goodReply


Write a program for a GENERAL NUMBER CONVERTERS which include

binary, decimal, octa and hexadecimal. You need to write the program using C

language.

Reply

Ritesh kumar 11/6/11, 10:43 AM

Hi,

I hope this link will help you

http://cquestionbank.blogspot.com/2010/07/c-program-examples.html

Check Conversion ( Number System ) section

Reply

Unknown 11/8/11, 1:10 AM

well frnd i have a question---

why the constructor in c++ can't be virtual but destructor can be?

Reply


I really appreciate this. I shall donate some to this site.

Reply

Priyank Gupta 12/11/11, 7:15 AM

This is very use full for students....
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Anonymous 12/11/11, 11:11 PM

really good collection.....very useful

Reply


Anyone plz peast link to find turbo C for windows-7.

i have turboC.exe setup but not working properlly.

Reply

Zaad 12/14/11, 8:08 PM

Count the total words in a sentence,count once if word repeatting without using lib function.

eg- my name is jawed,my pet name is dog.

Answer-6

Reply


all genius....

great work...

Reply

raviteja 12/21/11, 1:33 PM

void main()

{

float a=2.1;

if(a==2.1)

printf("TE");

else

printf("BE");

getch();

}

In the above program a is float value but 2.1 value directly substituted in program taht value take dou

-- float takes after dot(.) 8 zero's.

-- Double takes after dot(.) 16 zero's.

so.....float is not equal to double.

ans is BE.

Reply

hitesh 6/9/13, 6:42 PM

above is right


write a program to find the rank of the number in the one dimensional array without using sorting and

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c++ has any site like c

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admin 1/5/12, 1:59 AM

nice job i didn't see this type of stuff .Why don't you make website, we will made website with l

[email protected]

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yes. good

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thanks

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sudhir rajput 1/14/12, 6:15 PM

#include

#include

void main()

{

int i,j;

clrscr();

for(i=9;i>=1;i++)

{

for(j=i-1;j


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Way to go!!!

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Devendra Deshmukh 7/3/12, 11:36 AM

Awesome! Awesome ! Awesome!

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Deals 2 Buy 11/26/12, 12:40 AM

Thanks a lot. this helps a lot for fast revision of C.

Reply

Shubhabrata Naha 1/24/13, 10:05 PM

*hi can u suggest me a good ebook for Recursion in C??

I cant understand recursion :(

plz help me out...

Reply

ritesh kumar 1/25/13, 8:47 AM

Shubharata, I hope this link will help you:

How to write function recursion program in easier way


it's is very useful..............

Reply


can u write a code of this output:

Enter a number:12345

:23451:34512

:45123

:51234

The highest number:51234

Reply


#include

#include

char *

rotate(char *str)

{

char *cp = str;

char ch = *cp++;

int i;

while (*cp) {

*(cp-1) = *cp++;

}

*(cp-1) = ch;

return str;

}

void

shuffle(char *str)

{

long bigval = 0;

int i;

long val = 0;

printf("Shuffling...\n");

for (i=0; i < strlen(str); i++) {
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printf("%s\n", str = rotate(str));

val = atol(str);

if (!b igval || val > bigval ) {

bigval = val;

}

}

printf("Biggest shuffle is %d\n", bigval);

}

main()

{char buf[64];

printf("\nEnter +ve number : ");

scanf("%s",&buf);

shuffle(buf);

}


and this..

Enter a length of line:5

Enter P1:maria

Enter P1:gregEnter P1:juan

Enter P1:bitoy

Enter P1:melai

SAVE:4

I'LL wait ur reply.. i need it so badly

Reply


i need a program for this

1

2 3

4 5 67 8 9 10

Reply

hitesh 6/9/13, 10:59 PM

void main()

{

int j,i,k;

k=1;

for(i=1;i


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