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Logical Operator and Pre-increment Operator
what is the output of the following program
int x,y,z;
x=y=z=1;
z=++x||++y &&++z;
printf("%d,%d,%d",x,y,z);
return 0;
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What are the characteristics of arrays in C?
1) An array holds elements that have the same data type 2) Array elements are stored in subsequent memory locations3) Two-dimentional array elements are stored row by row in subsequent memory locations.4) Array name represents the address of the starting element5) Array size should be mentioned in the declaration. Array size must be a constant expression...
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Size of structure
struct {
int a : 8;
int b : 10;
int c : 12;
int d : 4;
int e : 3;
int : 0;
int f : 1;
char g;
} A;
what is the size of structure. size of bitfields with out character allocation is 48 bytes. so it is taking 4+4 =8 bytes. what about memory for character. Why memory for char is not allocated seperately. I am... -
What is the relationship between array name and pointer in C ?
Abhishek Mane
- Nov 22nd, 2018
Int *ptr; int arr[4]={1,2,3,4}; Pointer always points to the Base address of the array *(ptr+1) == arr[1] *(ptr+2) == arr[2] *(ptr+3) == arr[3]
Codejbode
- May 12th, 2017
Unless it is the operand of the "sizeof" or unary "&" operators, or is a string literal used to initialize another array in a declaration, an *expression* of type "N-element array of T" will be conver...
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Output of ++i + ++i + i + --i?
What will be the output of ++i + ++i + i + --i when i=5?
Compiler says output is 27. How? -
Pre and post increment operators
Why does ++i * ++i give 49 when i=5?
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The fields in a structure of a c program are by default 1. protected 2. public 3. private 4. can't say
Irfan ganie
- Sep 17th, 2018
Private
jintojos
- Jun 10th, 2008
In c language there is no modifiers like protected,public,private......these modifiers are in c++ language.......In c language the structure fields are public by default that is they can used by any structre instance variabes....
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Q. Write a function(efficient) to find the next prime number after a given number ?
Vishal Bharadwaj
- Aug 31st, 2018
Code- #include <stdio.h>
- void NextPrime(int n)
- {
- int i;
- for(i=2;i<=(n/2);i++)
- {
- if(n%i==0)
- {
- NextPrime(n+1);
- return;
- }
- }
- }
- int main(void)
- {
- int n;
- scanf("%d",&n);
- NextPrime(n+1);
- return 0;
- }
sarathi trichy
- Oct 24th, 2007
#include<stdio.h>#include<conio.h>void main(){ int a,i;clrscr();printf( " enter the number");scanf("%d",&a);for(i=a;i<a+1000;i++){if(i==1||i==2||i==3||i==5|...
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Bit fields memory aligment with unsigned int, short int.
I have a structure.
struct {
int a : 8;
int b : 10;
int c : 12;
int d : 4;
int e : 3;
int : 0;
int f : 1;
char g;
} A;
The size of bitfields memory is 48bits.
The size of structure should be 4+4+1 bytes = 9 bytes. What about the memory for variable g. why memory for g is not allocated separately.... -
A=0;while(a<5)printf("%d\n", a++);How many times does the loop occurs?A. infiniteB. 5C. 4D. 6
K.k.s
- Aug 25th, 2018
Infinite
chandradeepika
- Jun 13th, 2008
Ans:A)infinite.Becoz a is initialized to 0 and it is not incremented.so the condition wont become false and so it will execute for infinite times.
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Write a program to convert numbers into words?For ex: 547,as Five Hundred and Forty Seven
ARTI SHUKLA
- Aug 9th, 2018
Look the error for 1012....1019......2012......2019.....and so on, CORRECT IT SIR!
pankajgupta2828
- Aug 2nd, 2017
Please also suggest a code for generalized number i.e for any number at least till crores.
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Garbage Value
In C if a variable is not assigned a value then why does it take garbage value?
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Write a program in C to find the 3*3 matrix multiplication
Neha
- Mar 26th, 2018
Q~Program to perform matrix multiplication of 3?3 using strassens algorithm. Calculate total number of addition and multiplication operation while computing the matrix multiplication
Subhanjan Basu
- Apr 10th, 2012
Check this out:
Code- int a[3][3],b[3][3],c[3][3];
- int i,j,k;
- ");
- for(i=0;i<=2;i++)
- {
- for(j=0;j<=2;j++)
- {
- scanf("%d",&a[i][j]);
- }
- }
- ");
- for(i=0;i<=2;i++)
- {
- for(j=0;j<=2;j++)
- {
- scanf("%d",&b[i][j]);
- }
- }
- for(i=0;i<=2;i++)
- {
- ");
- for(j=0;j<=2;j++)
- {
- c[i][j]=0;
- for(k=0;k<=2;k++)
- {
- c[i][j] = c[i][j]+a[i][k] * b[k][j];
- }
- }
- }
- ");
- for(i=0;i<=2;i++)
- {
- for(j=0;j<=2;j++)
- {
- }
- ");
- }
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How to find entered number is EVEN or ODD without using conditional statement(not using if.. else,if.. , else if..,while, do... while...., for....)
RohitReddy
- Mar 12th, 2018
You can use conditional operator like this,
String result = num % 2 == 0 ? "Even" : "Odd";Chris
- Oct 28th, 2017
N%2 will give you 0 for even and 1 for odd. The string gives you the address of the start of the string. So for even it prints the string starting at the first character and for odd it starts at the 6th.
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Consider the following programmain(){unsigned int i=10;while(i>=0) { printf("%u",i) i--; }}How many times the loop will get executedA.10B.9C.11D. infinite
Asylzhan
- Jan 2nd, 2018
Answer :
10 9 8 7 6 5 4 3 2 1 0 65535 65534...
Explanation:
Since i is an unsigned integer it can never become negative.
So the expression i-- >=0 will always be true, leading to an infinite loop. -
Output of a++ + ++a + a++
What is the answer of a++ + ++a + a++
int a=5;c = a++ + ++a + a++;//compiler produces the answer 28!!!//How -
What is the output of the following program?
#define SQR(x) (x*x)
main()
{
int a,b=3;
a= SQR(b+2);
printf("%d",a);
}
">What is the output of the following program?#define SQR(x) (x*x)main(){ int a,b=3; a= SQR(b+2); printf("%d",a);}
A) 25B) 11C) ErrorD) Garbage Value
Ravi Raj Singhail
- Nov 25th, 2017
Answer is 11, Vinayaka was right all along :/
jbode
- Nov 1st, 2017
Remember that macros are just dumb text substitutions - they dont act like functions. If you specify an arithmetic expression like "b+2" as an argument to a macro, that expression wont be *evaluated*...
C Interview Questions
Ans