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41 lines
619 B
Go
41 lines
619 B
Go
package one
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import (
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"bufio"
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"bytes"
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"io"
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"github.com/onyx-and-iris/aoc2024/day-02/internal/util"
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)
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type comparator func([]int, int) bool
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func Solve(buf []byte) (int, error) {
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r := bytes.NewReader(buf)
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sum, err := parseLines(r)
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if err != nil {
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return 0, err
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}
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return sum, nil
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}
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func parseLines(r io.Reader) (int, error) {
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var sum int
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scanner := bufio.NewScanner(r)
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for scanner.Scan() {
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nums := util.IntsFromString(scanner.Text())
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if check(nums, util.CmpIncrease) || check(nums, util.CmpDecrease) {
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sum++
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}
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}
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if err := scanner.Err(); err != nil {
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return 0, err
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}
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return sum, nil
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}
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