haveSumWithPair

main.go

package main

import (
	"fmt"
)

func haveSumWithPair(list []int, sum int) bool {
	i := 0
	y := len(list) - 1

	for i < y {
		res := list[i] + list[y]
		if res == 8 {
			return true
		} else if res < 8 {
			i++
		} else {
			y--
		}
	}
	return false
}

func main() {
	res := haveSumWithPair([]int{1, 3, 4, 5, 7}, 8)

	fmt.Println("Result =>", res)
}