Make 120 with five zeroes
Use any mathematical operation between five zeroes to make them 120.
Given an integer n, write a function that returns count of trailing zeroes in n!. Examples: Input: n = 5 Output: 1 Factorial of 5 is 20 which has one trailing 0. Input: n = 20 Output: 4 Factorial of 20 is 2432902008176640000 which has 4 trailing zeroes. Input: n = 100 Output: 24
Very tricky one but only factorial is the mathematical operation that can give result.
ReplyDelete(0!+0!+0!+0!+0!)! =(1+1+1+1+1)!=5!=120
@Mufaddal very nice solution..:)
ReplyDelete