package main import ( "log" "time" "sunshine.industries/aoc2023/day21" ) func main() { startTime := time.Now() log.Print("> starting run:") result := day21.Run() log.Printf("\n\nday21 result: %d\n****\n", result) endTime := time.Now() diff := endTime.Sub(startTime) log.Printf("execution took %s", diff.String()) }