Goldbach's
Conjecture (II) Type: Number Theory Diff: 2.0
Tricks
It's
a very simple problem. To avoid time limit, first generate all
the prime number using sieve method. Then avoid (p1,p2) and
(p2,p1) check p1 in the range 1 to n/2 where n is the input and
find where n-p1 is prime or not.