getting WA
http://www.codechef.com/viewsolution/5230810
Ball will rebounds infinitely as given in the question
But in the second else if condition you put “a[i]/a[j]==f && a[i]%a[j]==0”
It means it checks only when ball rebounds for its first time and if it is you divided it by f
Let us take a test case
2 2
1 4
when you consider 4 your program check only for 4 and 2 not for 1 but it has to be included
So the answer for the above test case will be 1
But your program is outputting 0 for it