Introduction - If you have any usage issues, please Google them yourself
establishment prime function, used to judge whether the integer n is prime : bool prime (int n); Then prepare the main function, indiscriminate importation of a greater than even the 4 n, identify meet n = i j few all right, which called i and j are prime (by calling the prime to determine prime numbers). If even 18 can be decomposed to 11 7 and 13 5; And even 80 can be decomposed as follows : 19 43 37,61, 67 13,73 7.