convert decimal to binary

i have written a programme to convert decimal to binary….if i giv input as 25, i am getting 791 as output………i am not able to find the error…tried alot….please check the code n say where is d error…n giv me a solution…….

CODE
#include #include
void main()
{
int n,j,k,c=0;
int m=0;
int a[20];
printf(“enter the decimal no: “);
scanf(“%d”,&n);
while(n>0)
{

L:
j=n%2;
k=n/2;
n=k;
c++;
if(m!=c)
{
a[m]=j;
m++;
}
if(k!=0)
{
goto L;
}
else
{
break;
}
}
printf(“the equivalent binary no is “%d””,a[m]);
}
getch();
}