세그멘테이션 오류(해결)

#include <iostream>
#include <fstream>
#include <string>
#include <cstdlib>
#include <glut.h>
#include <gl.h>
#include <glu.h>
 
using namespace std;
 
	GLfloat MyVertices[8][3] ;	
	GLfloat MyColors[8][3] = { 	{0.2,0.2,0.2}, {1.0, 0.0, 0.0}, {1.0, 1.0, 0.0}, {0.0, 1.0, 0.0}, {0.0, 0.0, 1.0}, {1.0, 0.0, 1.0}, {1.0, 1.0, 1.0}, {0.0, 1.0, 1.0} } ;
	GLubyte MyVertexList[24] = { 0,3,2,1,2,3,7,6,0,4,7,3,1,2,6,5,4,5,6,7,0,1,5,4 };
 
 
	int k ,v , i, b, y,j  ;
 
void Mydisplay(){
 
 
 
float size[1000][4];
 
 
ifstream fin("test1.dat");
 
 
//fin.seek_dir(30,ios_base::beg);
 
for (v = 0 ; v < 9 ; v++)
{
	for (y =0 ; y<4; y++)
	{
		fin >> size[v][y];
 
	}
}
 
 fin.close();
 
 for (b = 0; b < 9; b++)
 {
	for (j = 0; j<3; j++)
	{
		  MyVertices[b][j] =0 ;
	}
}
 
 for (b = 0; b < 9; b++)
 {
	for (j = 0; j<3; j++)
	{
		  MyVertices[b][j] = size[b][j+1] ;
 
	}
}
 
 
 
  glClear(GL_COLOR_BUFFER_BIT);
  glFrontFace(GL_CCW);
  glEnable(GL_CULL_FACE);
 
  glEnableClientState(GL_COLOR_ARRAY);
 
  glEnableClientState(GL_VERTEX_ARRAY);
  glColorPointer(3, GL_FLOAT, 0, MyColors);
  glVertexPointer(3, GL_FLOAT, 0, MyVertices);
  glMatrixMode(GL_MODELVIEW);
  glLoadIdentity();
  glRotatef(30.0, 1.0, 1.0, 1.0);
  for(GLint i=0; i<6; i++)
	  glDrawElements(GL_POLYGON, 4, GL_UNSIGNED_BYTE, &MyVertexList[4*i]);
 
  glFlush();
}
 
 
double main(int argc, char** argv) {
	glutInit(&argc, argv);
	glutInitDisplayMode(GLUT_RGB);
	glutInitWindowSize(500, 500);
	glutInitWindowPosition(0,0);
	glutCreateWindow("OpenGL");
	glClearColor(0, 0, 0, 0);
	glMatrixMode(GL_PROJECTION);
	glLoadIdentity();
	glOrtho(-1.0, 1.0, -1.0, 1.0, -1.0, 1.0);
	glutDisplayFunc(Mydisplay);
	glutMainLoop();
	return 0;
}