Variables should be stored in local blocks. Yes or No?

jbode

 Profile Answers by jbode Questions by jbode

• Sep 16th, 2016

It depends on what youre trying to do. As a rule, functions should communicate solely through parameters and return values and not use shared state (i.e., global variables). However, sometimes shari...

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jbode

 Profile Answers by jbode Questions by jbode

• Sep 16th, 2016

In C, a *string* is a sequence of character values followed by a zero-valued terminator (byte or byte sequence). Strings are *stored* as arrays of char, but not all arrays of char contain strings - i...

vijay

• Sep 6th, 2016

A major difference is: string will have static storage duration, whereas as a character array will not, unless it is explicitly specified by using the static keyword.

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What is the answer of a++ + ++a + a++

int a=5;c = a++ + ++a + a++;//compiler produces the answer 28!!!//How

bhargav

• Aug 30th, 2016

given int a=5; if a=5 then value of a value of a value of a value of a initial after a++ after ++a after a++ a=5 ...

Praveen S

• Aug 7th, 2016

Answer is 22 not 28 .

Code
+ does addition for 2 at a time :
 
its (a++ + ++a) + a++;
thus answer is (7 + 7) + 8 = 22 //Not 28 .

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Avi

• Aug 24th, 2016

That is because when you declare an array say--->int arr[3]={1,2,3}; arr itself contains the base address of the array i.e arr is equivalent to &arr[0] so if a pointer say int *ptr is to point an arra...

bhargav

• Apr 23rd, 2016

Actually I am asking you question that is, Why should not we use & for assigning the pointer to a array?

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c.s.arthe

• Aug 23rd, 2016

If the first node you have started with, comes again in the traversal, we can stop counting. Instead of null we can check next!=first.

fairy

• Apr 26th, 2007

How can u check for NULL...in circular list the next node will never be null

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1)Write a C program to find a peculiar two digit number which is three times the sum of its digits.2) Bacteria are known to multiply very rapidly. If a certain container contains just one bacterium on the first day and there are twice as many on the next day. In this manner the number of bacteria in the container doubles itself everyday. Assuming that the container would be full on the 10th day with...

Aneesh

• Jul 29th, 2016

27

Code
#include<stdio.h>
#include<conio.h>
 void main()
  {
    int i,k,a,sum=0;
    clrscr();
     for(i=10;i<=99;i++)
      {
          k=i;
          a=k%10;
          k=k/10;
          sum=(a+k)*3;
          if(sum==i)
           printf("%d",i);
       }
     getch();
  }

Rohan

• Jun 18th, 2015

I dont know if its optimized but works"c {/*There are some goats and ducks in a farm. There are 60 eyes and 86 foot in total. Write a program to find number of goats and ducks...

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suchi kumari

• Jul 19th, 2016

What is the meaning of char far in c is not clear? Why it is used for a pointer declaration

Code
main()
{
 char far *s1,*s2;
 printf("%d%d",sizeof(s1),sizeof(s2));
}

kbjarnason

 Profile Answers by kbjarnason Questions by kbjarnason

• Jul 1st, 2010

C has no "far" pointers, it only has pointers.Some (generally ancient) compilers, notably for DOS, did offer near, far, and huge pointers.  This was due to how DOS managed memory.Basica...

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Why does ++i * ++i give 49 when i=5?

anurag

• Jul 7th, 2016

For pre-increment first we add the number of times it is pre-incremented so
5+2=7
Then 7*7=49

shivam_sharma

• Jun 16th, 2016

The ans of ++x * ++x is same as ++x * x according to all those with ans 49 @ x=5 for the former ; this means that pre-increment or no increment are same. How is this possible?

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Ashish bhardwaj

• Jun 29th, 2016

In i++ process in goes direct in register but in other (i=i+1 , i+=1) process goes in memory t in i++ first process in goes direct in register but in other (i=i+1 , i+=1) process goes in memory then register thats why i++ is fastest then register thats why i++ is fastest

Shivaraj Dalawai

• Oct 13th, 2015

i=i+1: To perform this operation compiler has to perform two operations: (1)ADD \i+1 (2)Assignment operation i=x i++: To perform this operation compiler has to perform only ...

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Narasimhaswamy challa

• Jun 6th, 2016

C code to covert each digits of a number in English word Convert digits to words in c "c #include int main(){ int number,i=0,j,digit; char * word[1000]; printf("E...

aston martin

• Oct 30th, 2015

Guys no one can do in normal bufferedreader?
or in string? so much of jigjag!

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Implement grep command in C using binary tree

venkat

• May 11th, 2016

"cobol IDENTIFICATION DIVISION. PROGRAM-ID. CABFIBN. ENVIRONMENT DIVISION. ...

Naveen Talasila

• Aug 15th, 2007

#include int main() { int i,j,k,count =0; int *a =NULL;scanf( "%d",&count); a = (int*)(malloc((sizeof(int))*count)); for (i=0;i { for (j= 0;j<=i;j++) { a[j] = a[i]+1; ...

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if i enter an ID Number it should look in the .txt file the employee who owns that ID Number then it will display it on the screen..

Jonatan

• May 11th, 2016

I dont think it will work right... if you are search for the word "be", and you have on the text the word "best" the function strstr is gonna found...

the_code

 Profile Answers by the_code Questions by the_code

• Aug 24th, 2011

This is a short program to search a string in a file. This prints the line in which the string is found:"c #include #include int main() { FILE *fp; char filename[]="name.txt",li...

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Write a program to find a number if even or odd with out using conditional operator and if-else?

debakanta rout

• Apr 2nd, 2016

Int num
scanf("%d",&nnum);
char *p[2]={"even","odd"};
printf("%d" is %s",num, p[num&1]);

Alejandro Visedo

• Mar 5th, 2016

Using only bit operators.

Code
char* text[2] = { "even", "odd" };
int num;
scanf( "%d", &num);
int index = num & 0x00000001;
printf( "%d is %s
", num, text[index]);

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1. Difference between "C structure" and "C++ structure".2. Diffrence between a "assignment operator" and a "copy constructor"3. What is the difference between "overloading" and "overridding"?4. Explain the need for "Virtual Destructor".5. Can we have "Virtual Constructors"?6. What are the different types of polymorphism?7. What are Virtual Functions? How to implement virtual functions in "C"8. What...

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Answered by: Rajini

• Feb 19th, 2007

---

Q. Difference between "C structure" and "C++ structure".
Ans:- C structure cannot have member functions but C++ structure can have. Also in a C structure by default all data members of structure are public and access cannot be changed by specifying the private or protected keywords but in C++ eventhough by default members are public we may change the access using the keywords private and protected.
Q. What is the difference between "overloading" and "overridding"?
ans:- Overloading is a process of having the same function name but different no of arguments or types of arguments within the same class but overriding means redefining a baseclass functions definition in the subclass.
Q. Explain the need for "Virtual Destructor".
Ans:=Virtual destructor ensures destruction of subclass and base class objects in proper order.
Q. What are the different types of polymorphism?
Ans:-Overloading and overriding.
Q. What are the different types of Storage classes?
ans:-Auto,Register,static and extern
Q. What is the difference between "calloc" and "malloc"?
Ans:- calloc and malloc are used for dynamic memory allocation. Calloc initializes the memory locations to zero by default but malloc memory contains garbage values.
Difference between "printf" and "sprintf".
printf will write to the console. sprintf will write to the buffer

suneel kumar alld

• Apr 2nd, 2016

Loop - Loop is a block of code that execute numbers of time until expression or statement return zero (0)

Shreya

• Feb 3rd, 2016

Namespace : It is a declarative region that provides scope to the identifiers inside it.

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Alejandro Visiedo

• Mar 5th, 2016

It is the same as:
a = 5;
c = (a=a+1) + (a=a+1) + (a=a+1);
and the second block would be the same as:
c = a + (a=a+1) + (a=a+1); a=a+1;
So that, the result will be:
* a=8; c=21, in the first case.
* a=8; c=18, in the second case.

Nitin Garg

• Dec 12th, 2015

It is very easy
i=5;
++i + ++i + ++i;
++ is higher precedence so that
++i + ++i + ++i

In this equation first i increment by 1
i=6
then again increment by 1
i=7;
then add first two is (++i + ++i) so addition is 14
then again increment by 1
i=8
then add (14 + ++i) so addition is 22

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Alejandro Visiedo

• Mar 5th, 2016

"c int arr1[7] = {2,3,4,4,5,6,7}; int arr2[7] = {1,2,2,4,6,8,8}; int index1 = 0; int index2 = 0; int maxindex1 = (sizeof(arr1)/sizeof(in...

Nitin Garg

• Dec 12th, 2015

Code
#include<stdio.h>
#include<conio.h>
#include<math.h>
 
int main()
{
 
int arr1[7]={2,3,4,4,5,6,7};
int arr2[7]={1,2,2,4,6,8,8};
int i,j=0,k=0;
 
while(k!=8){
for(i=0;i<8;i++){
if(arr1[i]==arr2[k]){
printf("%d ",arr1[i]);
break;
}//if
             
}//for
k++;
 
}//while
 
 
getch();
}

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how can we multiply this A*B without using "*" operator?

Alejandro Visiedo

• Mar 5th, 2016

In an "union" type, all the members are mapped to the same base address, so that the size of the type is determinated by the biggest member. In a "structure" type, each member is mapped in sequence...

Nitesh Raj

• Apr 22nd, 2015

Union allocates the memory equal to the maximum memory required by the member of the union but structure allocates the memory equal to the total memory required by the members. In union, one block is...

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winny gupta  

 Profile Answers by winny gupta Questions by winny gupta

• Member Since Feb-2007 | Feb 15th, 2007

---

2 bytes of memory because the pointer variable, whatever data type it maybe pointing to is always an unsigned integer as the address is always a positive integer, hence requiring 2 bytes of memory

Alejandro

• Mar 5th, 2016

It Depends on the architecture which is building on. - In a 16-bit addressing system, 2 bytes. - In a 32-bits addressing system 4 bytes. - In a 64-bits addressing system 8 bytes. Even in old ar...

Mukesh

• Jan 20th, 2016

It depends on how much bit Turbo C software you are using. If it is 32 bit then it will take 4 byte. If it is 64 bit then pointer will take 8 bytes of memory. 

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A) 25B) 11C) ErrorD) Garbage Value

KAVERI

• Mar 2nd, 2016

D) Garbage Value

majumder

 Profile Answers by majumder Questions by majumder

• Aug 31st, 2011

As SQR(x) is defined as (x*x)
So, SQR(b+2)=(b+2*b+2)
=3b+2
=3*3+2
=11
So answer is 11.....As my fellow frnds has quoted..:D

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