Pascal's triangle in c program
#include <stdio.h>
int factorial(int n) {
if(n<=1)
return 1;
else
return n*factorial(n-1);
}
int combination(int n,int r) {
return factorial(n) / ( factorial(n-r) * factorial(r) );
}
int main()
{
int n, i, j;
printf("Enter number of row you want to calculate: ");
scanf("%d",&n);
n=n-1;
for(i = 0; i <= n; i++)
{
for(j = 0; j <= n-i; j++)
{
printf(" ");
}
for(j = 0; j <= i; j++)
{
printf(" %3d", combination(i, j));
}
printf("\n");
}
return 0;
}
