Program for printing Pascal's Triangle

#include
#include

void main()
{
int arr[10][10];
int i,j,k;
clrscr();

printf("\n\n\n\t\t\t Program for printing Pascal's Triangle");

for(i=0;i<10;i++)
{
j=1;
arr[i][0]=1;
arr[i][i]=1;

while(j {
arr[i][j]=arr[i-1][j-1]+arr[i-1][j];
j++;
}
}

for(i=0;i<10;i++)
{
j=10;
while(j>i)
{
printf(" ");
j--;
}
for(k=0;k<=i;k++)
{
printf("%4d",arr[i][k]);

}
printf("\n\n");
}