28 lines
475 B
Go
28 lines
475 B
Go
package main
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import (
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"fmt"
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"io/ioutil"
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"strings"
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)
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func main() {
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d, _ := ioutil.ReadFile("input")
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s := string(d)
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groups := strings.Split(s, "\n\n")
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total := 0
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for _, g := range groups {
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results := make(map[rune]bool)
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lines := strings.Split(g, "\n")
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for _, l := range lines {
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for _, c := range l {
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if _, ok := results[c]; !ok { // if it's not already accounted for
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results[c] = true
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}
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}
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}
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total += len(results)
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}
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fmt.Println(total)
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}
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