CDRSANJ - CODER FIRST PROBLEM
CODER SANJAY is now ready to put up his first problem in his favorite website SPOJ.As it is his first problem,he wanted it to be easy so that most of them could get an AC.
The problem statement looks like this:
F(x) is a function whose properties are as follows.
1.F(x)=0 at x=0.
2.F(x)=1 at x=1.
3.F(x)=2 at x=2.
4.F(x)=0 if x is odd prime.
5.F(a*b)=F(a)+F(b),where a,b are two positive integers and sum of a and b is minimum.
Your task is simple.You are to output the value of F(x) for the given input integer x.
0 < x < 100001.
The only line of input contains a single integer x.
Output the value of F(x).
writing it on with pen n paper will get you logic in 2-3 min maybe less...
take a pen and paper and observe the pattern
My 100th on spoj :)
just two lines of code
nice recurtion problem. enjoying to solve it :)
Be careful with test cases like:
NO need to use DP bcz problm contains only one test case case and no sub problem will repeat. :)
no use of sieve no use of anything only use 2 to find answer ......haha
Nice Problem! #DP and #Recursion