package main

import (
	"fmt"
	"strings"
)

func printSlice(s []int) {
	fmt.Printf("len=%d cap=%d %v\n", len(s), cap(s), s)
}

func main() {
	a := make([]int, 5)
	printSlice(a)

	b := make([]int, 0, 5)
	printSlice(b)

	c := b[:2]
	printSlice(c)

	d := c[2:5]
	printSlice(d)

	// Slices can contain any type including other slices
	board := [][]string{
		[]string{"_", "_", "_"},
		[]string{"_", "_", "_"},
		[]string{"_", "_", "_"},
	}

	board[0][0] = "X"
	board[2][2] = "O"
	board[1][2] = "X"
	board[1][0] = "O"
	board[0][2] = "X"

	for i := 0; i < len(board); i++ {
		fmt.Printf("%s\n", strings.Join(board[i], " "))
	}
}