spoj#PTR2. primes triangle (II)
primes triangle (II)
Primes triangle is a triangle that contain all prime numbers.
2 3 5 7 11 13 17 19 23 29 ... ... ...
Your task is very easy given an integer from 1 to 10^9 prints its place in the primes triangle .
Input
in the first line integer 1<= T <= 10^4, followed by T lines each line contain integer 1 <= n <= 10^9 .
Output
one line contain pair of integers i, j .where i is the row number and j is the column number, 1 base. or -1 if n not exist in the primes triangle.
Example
Input: 3 3 23 4</p>Output: 2 1 4 3 -1
if you find Time limit is small here you can solve the tutorial version here: http://www.spoj.com/problems/PTR22/