Answer / lakshmi

void main()
{
int a;
scanf("%d",&a);

if((a&a-1)==0)
printf("Is a power of 2");
else
printf("Not a power of 2");
}

Answer / fallen angel

if(x&(x-1)==0)
then TRUE;
else
FALSE;

use the bitwise and operator

Answer / mayur shankariya

#include<stdio.h>
main()
{
int num;
printf("Enter Number
");
scanf("%d",&num);
(num & num - 1)? printf("Not
"):printf("Power of two
");
}

Answer / rarach

if( (a == 2 ) || ((a/2) %2 == 0 ) && a !=1)
TRUE
else
false

Answer / rohit

if((log(n)/log(2))/floor(log(n)/log(2))==1)
then TRUE;
else FALSE;

Answer / ramesh b penchal

#include<stdio.h>
main()
{
int n,i,d,m;
printf("Enter a number");
scanf("%d",&n);
m=n;
while(n>0)
{
d=n%10;
if(d!=0)
{
prntf("%d is not power of 2",m);
getch();
exit();
}
n=n/10;
}
prntf("%d is power of 2",m);
getch();
}

Answer / santhoo035

#include<iostream.h>
int main()
{
int n,i;
cout<<"Enter a number";
cin>>n;
for(i=1;i<n/2;i++)
{
if((2<<i)==n)
{
cout<<"The given no is power of 2";
break;
}
}
}

Answer / akshay rastogi

#include<conio.h>
void main()
{
int n,i=0,num=0;
printf("\n enter any number");
scanf("%d",&n);
while(num<=n)
{
i++;
num=2^i;
}
if(num==n)
printf("yes no. is power of 2");
else
printf("no.");
}

Answer / abc def

/*following expr evaluates to true if num is a power of
2.Else it's false. '&' - bitwise and.*/
(num == 1) || !(num & 1)

Answer / trailokya ranjan jena

#include<stdio.h>
void main()
{
int i,j;
clrscr();
printf("\n Enter a num");
scanf("%d",&i);
j=i;
for(;i%2==0;i/=2);
if(i==1)
printf("\n%d is power of 2",j);
else
printf("\n%d is not a power of 2");
getch();
}

main() { int *j; { int i=10; j=&i; } printf("%d",*j); }

9 Answers   HCL, Wipro,

#include<stdio.h> main() { struct xx { int x=3; char name[]="hello"; }; struct xx *s=malloc(sizeof(struct xx)); printf("%d",s->x); printf("%s",s->name); }

1 Answers   TCS,

main() { char *p="hai friends",*p1; p1=p; while(*p!='\0') ++*p++; printf("%s %s",p,p1); }

3 Answers  

main() { char c; int i = 456; clrscr(); c = i; printf("%d", c); } a. 456 b. -456 c. random number d. none of the above

3 Answers   BrickRed, HCL,

write a c program to Create a mail account by taking the username, password, confirm password, secret_question, secret_answer and phone number. Allow users to register, login and reset password(based on secret question). Display the user accounts and their details .

2 Answers  

how to delete an element in an array

2 Answers   IBM,

void func1(int (*a)[10]) { printf("Ok it works"); } void func2(int a[][10]) { printf("Will this work?"); } main() { int a[10][10]; func1(a); func2(a); } a. Ok it works b. Will this work? c. Ok it worksWill this work? d. None of the above

1 Answers   HCL,

main( ) { int a[ ] = {10,20,30,40,50},j,*p; for(j=0; j<5; j++) { printf(“%d” ,*a); a++; } p = a; for(j=0; j<5; j++) { printf(“%d ” ,*p); p++; } }

1 Answers  

write a origram swaoing valu without 3rd variable

2 Answers  

what is brs test reply me email me kashifabbas514@gmail.com

0 Answers  

main() { char *p; int *q; long *r; p=q=r=0; p++; q++; r++; printf("%p...%p...%p",p,q,r); }

1 Answers  

void main() { int i=5; printf("%d",i++ + ++i); }

3 Answers