62 lines
1000 B
Go
62 lines
1000 B
Go
package main
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import (
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"bufio"
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"fmt"
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"os"
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"strconv"
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"time"
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)
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func main() {
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start := time.Now()
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partOne()
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duration := time.Since(start)
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partTwo()
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duration2 := time.Since(start)
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fmt.Printf("p1: %s, p2: %s\n", duration, duration2-duration)
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}
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func makeScanner(test bool) *bufio.Scanner {
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var f *os.File
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if test {
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f, _ = os.Open("inputs/testinput")
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} else {
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f, _ = os.Open("inputs/input")
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}
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reader := bufio.NewReader(f)
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return bufio.NewScanner(reader)
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}
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func partOne() {
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scanner := makeScanner(false)
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p := 0
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c := 0
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for scanner.Scan() {
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line := scanner.Text()
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n, _ := strconv.Atoi(line)
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if p != 0 && n > p {
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c++
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}
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p = n
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}
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fmt.Println("part 1:", c)
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}
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func partTwo() {
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scanner := makeScanner(false)
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one, two, three := 0, 0, 0
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c := 0
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for scanner.Scan() {
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line := scanner.Text()
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n, _ := strconv.Atoi(line)
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if one != 0 && two != 0 && three != 0 && one+two+three < two+three+n {
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c++
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}
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one, two, three = two, three, n
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}
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fmt.Println("part 2:", c)
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}
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