The Most Powerful Word

package main

import (
    "bufio"
    "fmt"
    "os"
    "strings"
)

func main() {
    scanner := bufio.NewScanner(os.Stdin)
    scanner.Scan()
    word := scanner.Text()

    vowels := "aeiouyAEIOUY"
    strongWord := ""
    strongSum := 0.0

    for word != "End of words" {
        wordSum := 0.0
        for i := 0; i < len(word); i++ {
            wordSum += float64(int(word[i]))
        }

        if strings.Contains(vowels, string(word[0])) {
            wordSum *= float64(len(word))
        } else {
            wordSum /= float64(len(word))
        }

        if wordSum > strongSum {
            strongWord = word
            strongSum = wordSum
        }
        scanner.Scan()
        word = scanner.Text()
    }

    fmt.Printf("The most powerful word is %s - %d", strongWord, int(strongSum))
}