DSLCS 2011 Number Theory. Favorites
Sum And Product
A list of non-negative numbers is called satisfactory if the sum of the numbers in the list is equal to s and the product of the numbers is equal to p. Find a satisfactory list with the least possible number of elements.
Each line is a separate test that contains two non-negative integers s and p (1 ≤ s, p ≤
For each test case print in a separate line the size of satisfactory list with the least possible number of elements. If no such list exists, print -1 instead. Please note that the list may contain non-integer numbers.
10 10 5 6 5 100
1 2 -1