cassidoo #436

isAlternating.go

package main

import (
	"fmt"
)

var sequences = [][]int{
	[]int{},
	[]int{1},
	[]int{1, 1},
	[]int{1, 2, 1},
	[]int{10, 5, 10, 5, 10},
	[]int{2, 2, 3, 3},
	[]int{5, 4, 3, 5, 4, 3},
}

func isAlternating(sequence []int) bool {
	if len(sequence) < 2 {
		return true
	}

	for i, value := range sequence {
		if value != sequence[i%2] {
			return false
		}
	}

	return true
}

func main() {
	for _, sequence := range sequences {
		fmt.Println(isAlternating(sequence))
	}
}