MPGH Logistic Programming Challenge

#include <stdio.h>
#include <stdlib.h>
 
int main()
{
    int n;
    int i;
    int j;

    printf("How big is your triangle?: ");
    
    scanf("%d", &n);
    
    for (i=0; i<n; i++) {
        int c = 1;
        for(j=i; j>=0; j--) {
            printf(" %d", c);
            c = c * j/(i-j+1);
        }
        printf("\n");
    }
}