C Interview Questions

128

Answer is a)128. Here we are not modifying const value. We are just assigning value to const variable.

The origin of the term was similar to its meaning in "a movie script tells actors what to do": a scripting language controlled the operation of a normally-interactive program, giving it a sequence of ...

"Scripting" language *usually* implies a language thats interpreted as opposed to compiled, with lots of high-level operations for file manipulation, pattern matching, job management, etc. and geared ...

it increments i by 1i.e i becomes 6 in first subexpression and becomes in 7 in second subexpression.finally 42 is answer

Priority of pre increment is high so:
1. firstly ++i is executed then i=6;
2. then again ++i is executed and i=7;
3. and then the multiplication is done so i*i or 7*7 is 49.

to quit the current iteration. i.e. jump out of the loop.

3. To stop the current iteration and begin the next iteration.

yes, it is called recursion

Only one main main function is allowed. But you can call that main function n number of times.

Code
void main()
{
    static int a;;
    printf("%d",a);
    printf(main());
}

Enter key is line feed.

You have to typecast void pointer to int as *(int*)p;

Code
#include<stdio.h>
#include<conio.h>
int main()
{
 int a=10;
 void *p;
 p=&a;
 clrscr();
 printf("%u",*(int*)p);
 getch();
 return 0;
}

Your error is on line 9, where youve attempted to dereference a pointer to void (the expression *p). You can only dereference typed pointers. The solution you are probably looking for would be to repl...

Simple, fairly brain-dead example. Assumes any input characters fall into the range [0...CHAR_MAX). "c #include #include #include int main(int argc, char **argv) { int coun...

In C, all the character-oriented functions (getc, fgetc, getchar, etc.) return int instead of char, mainly to support an out-of-band value for EOF (an integer expression with a negative value).

The "void" in the parameter list indicates that the function takes no parameters.

For two positive numbers:

int main(){
int a = 10;
int b = 10;

printf("%d",a ^ b | ((a & b)<< 1));
return 0;
}

Code
#include<stdio.h>
#include<conio.h>
main()
{
    int a=20,b=10,c;
    clrscr();
    c=a-~b-1;             //it will change the sign of operator truly magic
    printf("sum is %d",c);
    getch();
    return 0;
}

include conio.h header file and textcolor(int value) function and dont forget to use cprintf statement : ex:

Code
textcolor(2);
cprintf("hell world");
 

Not directly. The printf function simply sends formatted text to the output stream. However, with some terminals, you can send control codes as part of the formatted text, and these control codes ca...

Ans:3 s++ means-first s=0 then s=s+1.so checking the initial value of s & then increment the value of s.In this way continuing this process & print the value of s.

45678910

C doesn't have a String data type, unless that supposed to be a typedef for something. Having said that, I think this is taking advantage of the fact that array indexing in C is commutative; IOW, "...

fread() function will read a specified number of elements from a file .

its the read() function

the syntax is

int bytes = (fp, buf,1);

First argument is the source file, second argument is the address of the buffer and the third argument is the maximum number of bytes we want to read.

It returns the number of bytes actually read.

"c #include int main(){ int amount,no_hun,no_fifty,no_ten,no_five,no_two,no_one,total_notes; printf(" Enter the amount: "); scanf("%d",&amount); no_hun=amount/100; amount=amoun...

Code
#include<stdio.h>
#include<stdlib.h>
main()
{
        int a,b,result=0;
        scanf("%d%d",&a,&b);
        while(a)
        {
                result=result+b;
                a--;
        }
        printf("%d
",result);
}

I have included the code herein for u."c //Program for Multiplication without using multiplication operator written by Er.Kunal #include #include void main() { int multiplican...

Code
#include<stdio.h>
 
main()
{
        int a[20],i;
        int pos,neg,zero;
 
        pos=neg=zero=0;
 
        for(i=0;i<5;i++)
        {
                scanf("%d",&a[i]);
                if(a[i]>0)
                        pos++;
                else if(a[i]<0)
                        neg++;
                else
                        zero++;
        }
        printf("+:%d -:%d 0:%d
",pos,neg,zero);
 
}

Code
#include<stdio.h>
#include<conio.h>
#include<string.h>
main()
{
char s[100];
int i;
printf("Enter ANy String:=>");
scanf("%s",&s);
printf("-----------Reverse String is---------------
");
for(i=strlen(s);i>=1;i--)
{
      printf("%c",s[i]);
}
getch();
return 0;
}

Code
#include<stdio.h>
#include<string.h>
void main()
{
int a,i;
char b[100];
char s[100]="in this world let there be a name and fame to those who can";
a=strlen(s);
for(i=0;i<=s;i++)
{
b[i]=s[a-i];
}
printf("%s",b);
}