#include

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Question:

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Answer:

CODE IN C:

#include <stdio.h>
int compute_factorial(int n){
    if(n == 0 || n == 1)
        return 1 ;
    return n * compute_factorial(n-1) ;
}
int compute_c(int n, int r){
    return compute_factorial(n) / (compute_factorial(n-r) * compute_factorial(r)) ;
}
int main()
{
    // declaring int variables to store n and r
    int n, r ;
    // taking n and r as input from the user
    printf("Enter n and r values: ");
    scanf("%d%d",&n, &r);
    // computing ncr usinig the function compute_c
    int res = compute_c(n, r) ;
    // displaying the result
    printf("Combination of %d objects taken an a time %d is %d", n, r, res);

    return 0;
}
 

OUTPUT:

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