spoj#PTRI. primes triangle (I)
primes triangle (I)
primes triangle is a triangle that contain all prime numbers .
2
3 5
7 11 13
17 19 23 29
.........
you task is very easy given an integer from 1 to 10^8 prints its place in the primes triangle .
you task is very easy given an integer from 1 to 10^8 prints its place in the primes triangle .
Input
in the first line integer 1<= T <= 10^5 , followed by T lines each line contain integer 1 <= n <= 10^8 .
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
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/PTRI2/