ncr C Program

ncr = n! / r! (n-r)!

Program	#include<stdio.h> void main() { int n, r, ncr; printf("Enter n and r values:"); scanf("%d%d",&n,&r); ncr = calc_ncr(n, r); printf("n=%d r=%d ncr=%d\n", n, r, ncr); } int calc_ncr(int n, int r) { int result; result = factorial(n)/(factorial(r)factorial(n-r)); return result; } int factorial(int n) { int temp, result = 1; for (temp = 1; temp <= n; temp++) result = resulttemp; return result; }
Input	Enter n and r values: 5 2
Output	n=5 r=2 ncr=10

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