## Number of trailing zeroes in base 16 representation of N!

Given an integer N, the task is to find the number of trailing zeroes in the base 16 representation of the factorial of N. Examples:… Read More »

- Find the unit place digit of sum of N factorials
- Range and Update Sum Queries with Factorial
- Number of permutations of a string in which all the occurrences of a given character occurs together
- Number of trailing zeroes in base 16 representation of N!
- Find maximum value of x such that n! % (k^x) = 0
- Find last two digits of sum of N factorials
- Number of ways to arrange a word such that all vowels occur together
- Find the total Number of Digits in (N!)N
- Implementation of Wilson Primality test
- Numbers of Length N having digits A and B and whose sum of digits contain only digits A and B
- Arrangement of the characters of a word such that all vowels are at odd places
- Maximum number with same digit factorial product
- Seating arrangement of n boys and girls alternatively around a round table
- Ways of dividing a group into two halves such that two elements are in different groups
- Arrangement of words without changing the relative position of vowel and consonants
- Check if N is a Factorial Prime

Given an integer N, the task is to find the number of trailing zeroes in the base 16 representation of the factorial of N. Examples:… Read More »

Given three positive integers N, A and B. The task is to count the numbers of length N containing only digits A and B and… Read More »

Given a positive integer N, the task is to check if N is a Factorial prime or not. If it is a factorial prime then… Read More »

Given an array arr[] of N integers and number of queries Q. The task is to answer three types of queries. Update [l, r] –… Read More »

Given a string str which represents an integer, the task is to find the largest number without any leading or trailing zeros or ones whose… Read More »

Given a string ‘S’ containing vowels and consonants of lowercase English alphabets. The task is to find the number of ways in which the characters… Read More »

Given a word containing vowels and consonants. The task is to find that in how many different ways word can be arranged so that the… Read More »

Given two integers and . The task is to find the maximum value of x, such that, n! % (k^x) = 0. Examples: Input :… Read More »

Given a string ‘s’ and a character ‘c’, the task is to find the number of permutations of the string in which all the occurrences… Read More »

Given 2n girls and randomly divided into two subgroups each containing n girls. The task is to count the number of ways in which groups… Read More »

Given a word of length less than 10, the task is to find a number of ways in which it can be arranged without changing… Read More »

There are n boys and n girls are to be seated around a round table, in a circle. The task is to find number of… Read More »

Given a number N, the task is to find unit and tens places digit of the first N natural numbers factorials, i.e last last two… Read More »

Given a number N, the task is to find units place digit of the first N natural numbers factorials, i.e. 1!+2!+3!+….N! where N<=10e18. Examples: Input:… Read More »

Given a number N, the task is to check if it is prime or not using Wilson Primality Test. Print ‘1’ isf the number is… Read More »