Latest Seagate Aptitude Question SOLUTION: how many 4 letter words can we make from "A", "B", "C" each letter should come at least once. and also please give a generic formula to calculate if the letters are increased.. li

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(#M40153390) SEAGATE Numerical Ability question permutation/combination Keep an EYE

how many 4 letter words can we make from "A", "B", "C" each letter should come at least once.

and also please give a generic formula to calculate if the letters are increased.. like 5,6,7..

Asked In Seagate Sujeet Kumar (8 years ago)

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Parthipan Karuppuswamy  (7 years ago)

#include

long binomial_coefficient(int k, int i)
{
unsigned long fact1, fact2;

if (i==0)
return 1;

for (fact1=1, fact2=1;i>0; k--,i--)
{
fact1 = fact1*k;
fact2 = fact2*i;
}
return fact1/fact2;

}

long power(int base, int power)
{
long result = 1;

for(;power>0;power--)
result = result * base;

return result;
}

int main()
{
int i, sum=0;
int n = 3; // Number of letters
int length = 4; // Length of the word
// Derived formula
for(i=0;i

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