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36 lines
651 B
Go
36 lines
651 B
Go
package main
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import (
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"strings"
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"unicode"
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)
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// one computes points based on matching numbers
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func one(lines []string) (int, error) {
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f := func(c rune) bool {
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return !unicode.IsDigit(c)
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}
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sum := 0
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cards = make([]Card, len(lines))
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for x, line := range lines {
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winning, mynums := func() (string, string) {
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y := strings.Split(line, ":")
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z := strings.Split(y[1], "|")
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return z[0], z[1]
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}()
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m, err := compare(strings.FieldsFunc(winning, f), strings.FieldsFunc(mynums, f))
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if err != nil {
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return 0, err
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}
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cards[x].matches = m
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if cards[x].matches > 0 {
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sum += (pow(2, cards[x].matches-1))
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}
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}
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return sum, nil
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}
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