switch statement in c
Out of multiple if-else statements and a switch statement, which is faster and why?
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
the switch statement, dont know the reason.
ReplyDeleteswitch statement in most of the language uses index based table to block of statements, so they are fast in execution compared to multiple if-else.
ReplyDeletefor more detailed please read
http://en.wikipedia.org/wiki/Switch_statement