score-calc.go

package main
import "fmt"

func main() {
    var lastResult string
    var sum int
    fmt.Scanln(&lastResult)
    results := []string{"w", "l", "w", "d", "w", "l", "l", "l", "d", "d", "w", "l", "w", "d"}

    for _, val := range append(results, lastResult) {
        switch val {
            case "w":
                sum += 3
            case "d":
                sum += 1
            case "l":
                continue
        }
    }

    fmt.Println(sum)
    
}