Fitness Center

package main

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

func main() {
    var visitors, back, chest, legs, abs, proteinBar, proteinShake int
    fmt.Scanln(&visitors)

    var action string

    scanner := bufio.NewScanner(os.Stdin)

    for i := 0; i < visitors; i++ {
        scanner.Scan()
        action = scanner.Text()
        switch action {
        case "Back":
            back++
        case "Chest":
            chest++
        case "Legs":
            legs++
        case "Abs":
            abs++
        case "Protein bar":
            proteinBar++
        case "Protein shake":
            proteinShake++
        }
    }

    fmt.Printf("%d - back\n%d - chest\n%d - legs\n%d - abs\n%d - protein shake\n%d - protein bar\n%.2f%% - work out\n%.2f%% - protein",
                back, chest, legs, abs, proteinShake, proteinBar, float64(back + chest + legs + abs) / float64(visitors) * 100, float64(proteinShake + proteinBar) / float64(visitors) * 100)
}