Gerando uma solucao inicial gulosa mas ainda nao aleatoria

Default/src/Edge.d

@@ -0,0 +1,3 @@
+src/Edge.d src/Edge.o: ../src/Edge.cpp ../src/Edge.h
+
+../src/Edge.h:

Default/src/GA.d

@@ -0,0 +1,10 @@
+src/GA.d src/GA.o: ../src/GA.cpp ../src/GA.h ../src/Instance.h \
+ ../src/Edge.h ../src/Solution.h
+
+../src/GA.h:
+
+../src/Instance.h:
+
+../src/Edge.h:
+
+../src/Solution.h:

Default/src/Instance.d

@@ -1,3 +1,6 @@
-src/Instance.d src/Instance.o: ../src/Instance.cpp ../src/Instance.h
+src/Instance.d src/Instance.o: ../src/Instance.cpp ../src/Instance.h \
+ ../src/Edge.h
 
 ../src/Instance.h:
+
+../src/Edge.h:

Default/src/Main.d

@@ -1,3 +1,10 @@
-src/Main.d src/Main.o: ../src/Main.cpp ../src/Instance.h
+src/Main.d src/Main.o: ../src/Main.cpp ../src/Instance.h ../src/Edge.h \
+ ../src/GA.h ../src/Solution.h
 
 ../src/Instance.h:
+
+../src/Edge.h:
+
+../src/GA.h:
+
+../src/Solution.h:

Default/src/Solution.d

@@ -0,0 +1,3 @@
+src/Solution.d src/Solution.o: ../src/Solution.cpp ../src/Solution.h
+
+../src/Solution.h:

Default/src/subdir.mk

@@ -4,16 +4,25 @@
 
 # Add inputs and outputs from these tool invocations to the build variables 
 CPP_SRCS += \
+../src/Edge.cpp \
+../src/GA.cpp \
 ../src/Instance.cpp \
-../src/Main.cpp 
+../src/Main.cpp \
+../src/Solution.cpp 
 
 OBJS += \
+./src/Edge.o \
+./src/GA.o \
 ./src/Instance.o \
-./src/Main.o 
+./src/Main.o \
+./src/Solution.o 
 
 CPP_DEPS += \
+./src/Edge.d \
+./src/GA.d \
 ./src/Instance.d \
-./src/Main.d 
+./src/Main.d \
+./src/Solution.d 
 
 
 # Each subdirectory must supply rules for building sources it contributes

src/Edge.cpp

@@ -0,0 +1,18 @@
+/*
+ * Edge.cpp
+ *
+ *  Created on: Oct 2, 2011
+ *      Author: hugo
+ */
+
+#include "Edge.h"
+
+Edge::Edge(int _i,int _j,int _cost) {
+	i = _i;
+	j = _j;
+	cost = _cost;
+}
+
+Edge::~Edge() {
+	// TODO Auto-generated destructor stub
+}

src/Edge.h

@@ -0,0 +1,18 @@
+/*
+ * Edge.h
+ *
+ *  Created on: Oct 2, 2011
+ *      Author: hugo
+ */
+
+#ifndef EDGE_H_
+#define EDGE_H_
+
+class Edge {
+public:
+	int i,j,cost;
+	Edge(int,int,int);
+	virtual ~Edge();
+};
+
+#endif /* EDGE_H_ */

src/GA.cpp

@@ -0,0 +1,43 @@
+/*
+ * GA.cpp
+ *
+ *  Created on: Oct 2, 2011
+ *      Author: hugo
+ */
+
+#include "GA.h"
+#include <stdlib.h>
+#include <stdio.h>
+
+Solution* GA::greedySolution(){
+	printf("Solucao inicial\n");
+	int *sol = (int*)malloc(sizeof(int)*instance->numVertex());
+	for(int i=0;i<instance->numVertex();i++){
+		sol[i]=-1;
+	}
+
+	Edge *edge = instance->bestEdge();
+	for(int i=1;edge!=NULL;i++){
+		if(sol[edge->i]<0 && sol[edge->j]<0){
+			sol[edge->i] = 1;
+			sol[edge->j] = 0;
+		}else if(sol[edge->i]<0){
+			sol[edge->i] = !sol[edge->j];
+		}else{
+			sol[edge->j] = !sol[edge->i];
+		}
+		edge = instance->bestEdge(i);
+	}
+	Solution *solution = new Solution(sol,instance->numVertex());
+	return solution;
+}
+GA::GA(Instance *_instance) {
+	cout << "GA"<<endl;
+	instance = _instance;
+	Solution *initial = greedySolution();
+	initial->print();
+}
+
+GA::~GA() {
+	// TODO Auto-generated destructor stub
+}

src/GA.h

@@ -0,0 +1,22 @@
+/*
+ * GA.h
+ *
+ *  Created on: Oct 2, 2011
+ *      Author: hugo
+ */
+
+#ifndef GA_H_
+#define GA_H_
+#include "Instance.h"
+#include "Solution.h"
+
+class GA {
+private:
+	Instance *instance;
+	Solution* greedySolution();
+public:
+	GA(Instance*);
+	virtual ~GA();
+};
+
+#endif /* GA_H_ */

src/Instance.cpp

@@ -8,6 +8,13 @@
 #include "Instance.h"
 #include<fstream>
 #include<stdlib.h>
+#include<stdio.h>
+
+int compare (const void * a, const void * b)
+{
+  return ( ((Edge*)a)->cost - ((Edge*)b)->cost );
+}
+
 
 Instance::Instance(string arq_name) {
 	Instance::arq_name = arq_name;
@@ -21,6 +28,21 @@ Instance::~Instance() {
 	free(matriz);
 }
 
+Edge* Instance::bestEdge(int _i){
+	if(_i>=num_edges)return NULL;
+	return order[_i];
+}
+Edge* Instance::bestEdge(){
+	return bestEdge(0);
+}
+int Instance::numEdges(){
+	return num_edges;
+}
+
+int Instance::numVertex(){
+	return num_vertex;
+}
+
 void Instance::loadFile() {
 	ifstream myReadFile;
 	myReadFile.open(arq_name.c_str());
@@ -29,22 +51,25 @@ void Instance::loadFile() {
 	if (myReadFile.is_open()) {
 		myReadFile.getline(output, 100);
 		sscanf(output, "%d %d", &num_vertex, &num_edges);
-		matriz = (int**) malloc(sizeof(int*) * num_vertex);
+		order = (Edge**) malloc(sizeof(Edge*) * num_edges);
+		matriz = (Edge***) malloc(sizeof(Edge**) * num_vertex);
 		for (i = 0; i < num_vertex; i++) {
-			matriz[i] = (int *) malloc(sizeof(int) * num_vertex);
+			matriz[i] = (Edge **) malloc(sizeof(Edge*) * num_vertex);
 			for (j = 0; j < num_vertex; j++) {
-				matriz[i][j] = matriz[i][j] ^ matriz[i][j];
+				matriz[i][j] = NULL;
 			}
 		}
-
+		int ordePos=0;
 		while (!myReadFile.eof()) {
 			myReadFile.getline(output, 100);
 			sscanf(output, "%d %d %d", &i, &j, &cost);
-			matriz[i][j] = cost;
+			matriz[i][j] = new Edge(i,j,cost);
+			order[ordePos++] = matriz[i][j];
 		}
+		qsort (order, num_edges, sizeof(Edge), compare);
 	} else {
 		cout << "Not open" << endl;
 	}
+	printf("%d:%d\n", num_vertex,num_edges);
 	myReadFile.close();
-	cout << num_vertex << ":" << num_edges;
 }

src/Instance.h

@@ -10,17 +10,23 @@
 
 #include <string.h>
 #include <iostream>
+#include "Edge.h"
 using namespace std;
 
 class Instance {
 public:
+	Edge* bestEdge();
+	Edge* bestEdge(int);
+	int numEdges();
+	int numVertex();
 	Instance(string arq_name);
 	virtual ~Instance();
 private:
 	string arq_name;
 	int num_edges;
 	int num_vertex;
-	int** matriz;
+	Edge*** matriz;
+	Edge** order;
 	void loadFile();
 };
 

src/Main.cpp

@@ -9,9 +9,12 @@
 using namespace std;
 
 #include "Instance.h"
+#include "GA.h"
 
 int main(int argv, char *arg[]){
 	Instance *instance = new Instance("/home/hugo/workspace/max_cut/instances/set1/g1.rud");
+	cout << "Fazer GA"<<endl;
+	GA *ga = new GA(instance);
 	delete instance;
 	return 0;
 }

src/Solution.cpp

@@ -0,0 +1,23 @@
+/*
+ * Solution.cpp
+ *
+ *  Created on: Oct 2, 2011
+ *      Author: hugo
+ */
+
+#include "Solution.h"
+#include <stdio.h>
+
+void Solution::print(){
+	for(int i=0;i<length;i++)
+		printf("%d ",vertex[i]);
+	printf("\n");
+}
+Solution::Solution(int *_vertex, int _length) {
+	vertex = _vertex;
+	length = _length;
+}
+
+Solution::~Solution() {
+	// TODO Auto-generated destructor stub
+}

src/Solution.h

@@ -0,0 +1,20 @@
+/*
+ * Solution.h
+ *
+ *  Created on: Oct 2, 2011
+ *      Author: hugo
+ */
+
+#ifndef SOLUTION_H_
+#define SOLUTION_H_
+
+class Solution {
+public:
+	int *vertex;
+	int length;
+	void print();
+	Solution(int*,int);
+	virtual ~Solution();
+};
+
+#endif /* SOLUTION_H_ */