To convert decimal number to binary number

#include
#include

main()
{
int a[16],n,i=1,j,x=0;
clrscr();
printf("Input a decimal number ");
scanf("%d",&n);
while(n>0)
{
x=n%2;
a[i]=x;
n=n/2;
i++;
}
printf("\nBinary equivalent is : ");
for(j=i-1;j>=1;j--)
printf("%d",a[j]);
}