matrix

package main

import (
	"fmt"

	"github.com/skhal/lab/iq/31/matrix"
)

func main() {
	m := matrix.M{
		0: []int{1, 2, 4},
		1: []int{4, 5, 7},
	}
	fmt.Println(matrix.Has(m, 3))
	fmt.Println(matrix.Has(m, 5))
}

Output:
false
true