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HS08PAUL - A conjecture of Paul Erdős |
In number theory there is a very deep unsolved conjecture of the Hungarian Paul Erdős (1913-1996), that there exist infinitely many primes of the form x2+1, where x is an integer. However, a weaker form of this conjecture has been proved: there are infinitely many primes of the form x2+y4. You don't need to prove this, it is only your task to find the number of (positive) primes not larger than n which are of the form x2+y4 (where x and y are integers).
Input
An integer T, denoting the number of testcases (T≤10000). Each of the T following lines contains a positive integer n, where n<10000000.
Output
Output the answer for each n.
Example
Input: 4 1 2 10 9999999 Output: 0 1 2 13175
Added by: | Robert Gerbicz |
Date: | 2009-04-05 |
Time limit: | 1s |
Source limit: | 4096B |
Memory limit: | 1536MB |
Cluster: | Cube (Intel G860) |
Languages: | ADA95 ASM32 BASH BF C CSHARP CPP C99 CLPS LISP sbcl LISP clisp D FORTRAN HASK ICON ICK JAVA LUA NEM NICE OCAML PAS-GPC PAS-FPC PERL PHP PIKE PRLG-swi PYTHON RUBY SCM guile SCM qobi ST WHITESPACE |
Resource: | High School Programming League 2008/09 |