Write a python function to find nCr


Topic: Write a python function to find nCr

Solution

 
 def nCr(n, r): 
    def fact(n): 
        res = 1
        for i in range(2, n+1): 
            res = res * i 
        return res
    
    return (fact(n) / (fact(r)  
                * fact(n - r)))



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