package main
 
import "fmt"
 
type array []int
 
func (arr array) linearSearch(number int) int {
	for i := 0; i < len(arr); i++ {
        if arr[i] == number {
            return i
        }
	}
 
    return -1
}
 
func main() {
	arr := array{8, 2, 9, 10, 5, 4, 2, 7, 18, 0}
    number := 7
 
	index := arr.linearSearch(number)
 
    if index == -1 {
        fmt.Println("Liczby nie ma w tablicy")
    } else {
        fmt.Printf("Liczba jest pod indeksem %d\n", index)
    }
}

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