CProgramming operator Question with Detail Explanation

Q(1)

void main()

{

int p=7,r;

if(p=2)

{

r=sizeof(p=11);

}

else

{

int r=3;

}

printf("%d %d",p,r);

}

output: 2 2

explanation :

if(p=2)

here p=2

so if(2) is true.

now

r=sizeof(p=11)

sizeof operator never assign value to variable which is written inside the ().

till now p=2.

sizeof operator always return the size of data type which is written inside the ()

here p is integer data type so sizeof operator will assign value 2 to the r.

Q(2) write a program for writing binary equivalent value of any decimal number ?

Program:-

program for writing binary equivalent value of any decimal number

void main()

{

int value,i;

scanf("%d",&value);

for(i=0;i<16;i++)>>i)

{

printf("1");

}

else

{

printf("0");

}

}

getch();

}

Q(3) Write a program to subtract two number without using subtraction operator ?

program:-

subtract two number without using subtraction operator

void main()

{

int a,b,c;

scanf("%d%d",&a,&b);

c=a+~b+1;

printf("%d",c);

getch();

}

Q(4) Write a program to add two number without using addition operator?

program:-

add two number without using addition operator

void main()

{

int a,b,c;

clrscr();

scanf("%d%d",&a,&b);

c=a-~b-1;

printf("%d",c);

getch();

}