www.pudn.com > gahelloworld.rar > gahelloworld.cpp

 
#pragma warning(disable:4786)		// disable debug warning 
 
#include 					// for cout etc. 
#include 					// for vector class 
#include 					// for string class 
#include 				// for sort algorithm 
#include 					// for random seed 
#include 					// for abs() 
 
#define GA_POPSIZE		2048		// ga population size 
#define GA_MAXITER		16384		// maximum iterations 
#define GA_ELITRATE		0.10f		// elitism rate 
#define GA_MUTATIONRATE	0.25f		// mutation rate 
#define GA_MUTATION		RAND_MAX * GA_MUTATIONRATE 
#define GA_TARGET		std::string("Hello world!") 
 
using namespace std;				// polluting global namespace, but hey... 
 
struct ga_struct  
{ 
	string str;						// the string 
	unsigned int fitness;			// its fitness 
}; 
 
typedef vector ga_vector;// for brevity 
 
void init_population(ga_vector &population, 
					 ga_vector &buffer )  
{ 
	int tsize = GA_TARGET.size(); 
 
	for (int i=0; i