exactcover problem

exact.go

package main

import (
	"fmt"
)

func tester(input [9]byte) bool {
	return false
}

func main() {
	var input1 = [9]byte{1, 2, 3, 4, 5, 6, 7, 8, 9}
	fmt.Println(tester(input1)) // except: true
	
	var input2 = [9]byte{1, 1, 3, 4, 5, 6, 7, 8, 9}
	fmt.Println(tester(input1)) // except: false
	
	var input3 = [9]byte{9, 1, 3, 4, 5, 6, 7, 8, 2}
	fmt.Println(tester(input1)) // except: true
	
	var input4 = [9]byte{1, 2, 3, 4, 5, 6, 7, 8, '.'}
	fmt.Println(tester(input1)) // except: false
}