i think it can be done by look ups..i.e. we start wid the smallest no..evaluate the factorial of dat n den using dis we can get the factorial of a bigger no.. ex. to calculate 10c3 we shud hav 3!, 7!, 10!, now firstly we evaluate 3!, den using dis evaluate 7! as 7!=7*6*5*4*3! n again 10!=10*9*8*7!... i think d order can be minimized apprecialby...correct me if m wrong...
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