50 lines
996 B
Go
50 lines
996 B
Go
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package main
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import (
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"fmt"
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"strings"
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h "git.bullercodeworks.com/brian/adventofcode/helpers"
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)
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func main() {
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inp := h.StdinToStringSlice()
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part1(inp)
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fmt.Println()
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part2(inp)
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}
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func part1(input []string) {
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var times []int
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var distances []int
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for _, v := range strings.Fields(input[0])[1:] {
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times = append(times, h.Atoi(v))
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}
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for _, v := range strings.Fields(input[1])[1:] {
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distances = append(distances, h.Atoi(v))
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}
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res := 1
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for i := range times {
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res *= countWaysToWin(times[i], distances[i])
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}
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fmt.Println("# Part 1")
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fmt.Println(res)
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}
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func part2(input []string) {
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time := h.Atoi(strings.ReplaceAll(strings.TrimPrefix(input[0], "Time:"), " ", ""))
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distance := h.Atoi(strings.ReplaceAll(strings.TrimPrefix(input[1], "Distance:"), " ", ""))
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fmt.Println("# Part 2")
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fmt.Println(countWaysToWin(time, distance))
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}
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func countWaysToWin(time, distance int) int {
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var res int
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for i := 1; i <= time; i++ {
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if i*(time-i) > distance {
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res++
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}
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}
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return res
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}
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