void setup() {
  size(400, 400);
  background(255);
  
  int numCells = 10; // Number of cells in each direction
  int cellSize = width / numCells; // Size of each cell
  
  // Draw grid of rectangles
  for (int i = 0; i < numCells; i++) {
    for (int j = 0; j < numCells; j++) {
      int x = i * cellSize;
      int y = j * cellSize;
      rect(x, y, cellSize, cellSize);
    }
  }
  
  // Draw x-axis
  stroke(0);
  line(0, height / 2, width, height / 2);
  
  // Draw y-axis
  line(width / 2, 0, width / 2, height);
  
  // Plot and connect points
  float[] xValues = {0, 1, 2, 3, 4, 5};
  float[] yValues = {1, 4, 2, 6, 3, 5};
  
  for (int i = 0; i < xValues.length; i++) {
    // Map points to the grid
    float mappedX = map(xValues[i], 0, 5, 0, width);
    float mappedY = map(yValues[i], 0, 6, height, 0);
    
    // Plot points
    fill(255, 0, 0); // Red color
    ellipse(mappedX, mappedY, 10, 10);
    
    // Connect points with lines
    if (i > 0) {
      float prevMappedX = map(xValues[i-1], 0, 5, 0, width);
      float prevMappedY = map(yValues[i-1], 0, 6, height, 0);
      line(prevMappedX, prevMappedY, mappedX, mappedY);
    }
  }
}