table.go

gistfile1.txt

package main

import "fmt"

type Grid []uint

func (g *Grid) NewGrid(width int, height int) {
    for i:=0; i < height; i++ {
        *g = append(*g, 0)
    }
}

func (g Grid) TurnOn(x int, y int, x1 int, y1 int) {
    var applyer uint = 1 << uint(9 - x)
    applyer -= 1

    lower := uint(1 << uint(9 - x1)) - 1
    applyer &= ^lower

    for i := y; i < y1; i++ {
        g[i] |= applyer
    }
}

func (g Grid) Println(width int, height int) {
    for i := 0 ; i < height; i++ {
        h := make([]int, width)
        for j :=0; j < width; j++ {
            if g[i] & (1 << uint(9-j-1)) > 0 {
                h[j] = 1
            } else {
                h[j] = 0
            }
        }
        fmt.Println(h)
    }
}

func main() {
    var g Grid
    g.NewGrid(9, 9)
    g.TurnOn(2, 1, 4, 4)
    g.TurnOn(3, 5, 8, 8)
    g.TurnOn(8, 0, 9, 3)
    g.Println(9, 9)
}