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package raindrops | |
import ( | |
"bytes" | |
"fmt" | |
) | |
func Convert(v int) string { | |
fs := findRelevantFactorsFor(v) | |
return formatFactorsOf(v, fs) | |
} | |
func findRelevantFactorsFor(v int) (factors []int) { | |
for _, factor := range []int{3, 5, 7} { | |
if v % factor == 0 { | |
factors = append(factors, factor) | |
} | |
} | |
return | |
} | |
var dictFactorToStr = map[int]string{ | |
3: "Pling", | |
5: "Plang", | |
7: "Plong", | |
} | |
func formatFactorsOf(v int, factors []int) string { | |
if len(factors) == 0 { | |
return fmt.Sprintf("%d", v) | |
} else { | |
var buf bytes.Buffer | |
for _, factor := range factors { | |
buf.WriteString(dictFactorToStr[factor]) | |
} | |
return buf.String() | |
} | |
} |
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