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exercise.go
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exercise.go
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package exercise
import "bytes"
func Play(input []string) []string{
p1 := MakeShotMap(input[0])
p2 := MakeShotMap(input[1])
p1Score := CalcPlayerScore(p1,p2)
p2Score := CalcPlayerScore(p2,p1)
p1Letters := CalcLeftOverLetters(p1, p2)
p2Letters := CalcLeftOverLetters(p2, p1)
return []string{p1Letters,p2Letters,WhoWon(p1Score,p2Score)}
}
func CalcLeftOverLetters(player map[string]int, oponent map[string]int) string {
var buffer bytes.Buffer
for k, playerValue := range player {
if opValue, ok := oponent[k]; ok {
numberOfLetters := (playerValue - opValue)
if numberOfLetters > 0 {
for i := 0; i < numberOfLetters; i ++ {
buffer.WriteString(k)
}
}
}else {
for i := 0; i < playerValue; i ++ {
buffer.WriteString(k)
}
}
}
return buffer.String()
}
func WhoWon(player1Score int, player2Score int) string{
scoreDiff := player1Score - player2Score
if scoreDiff == 0 {
return "tie"
}
if scoreDiff > 0 {
return "p1"
}
return "p2"
}
func MakeShotMap(input string) map[string]int {
result := make(map[string]int)
for _, c := range input {
if _, ok := result[string(c)]; ok {
result[string(c)]++
}else {
result[string(c)] = 1
}
}
return result
}
func CalcPlayerScore(player map[string]int, oponent map[string]int) int {
result := 0
for k, playerValue := range player {
if opValue, ok := oponent[k]; ok {
if (playerValue > opValue){
result = result + (playerValue - opValue)
}
}else {
result = result + playerValue
}
}
return result
}