Tag Archives: counting

Number of trailing zeros in factorial of an integer

Posted on May 11, 2012 by

An integer n is given, the task is to find the number of trailing zeros in n! .

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Find Sum (i … j) in a list

Posted on May 4, 2012 by

The problem is to sum the ith to jth element of a given list. The easiest solution runs in time, which starts are the ith index and adds up the numbers in the list until it reaches the jth index. … Continue reading →

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All Combinations Without Repetitions

Posted on October 13, 2009 by

A method is to generate all Combinations of a set with distinct elements is described, then it’s C Language implementation is presented. Continue reading →

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r-Permutations With Repetitions

Posted on August 1, 2009 by

A method is to generate all r-Permutations of a set with distinct elements is described, then it’s C Language implementation is presented. Also a 20 Digit Decimal counter is coded to show a use, which can also be extended to a ‘n’ Digit Decimal counter. Continue reading →

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