package main import ( "bufio" "fmt" "os" "strconv" ) func configure(scanner *bufio.Scanner) { scanner.Split(bufio.ScanWords) scanner.Buffer(make([]byte, 1000005), 1000005) } func getNextString(scanner *bufio.Scanner) string { scanned := scanner.Scan() if !scanned { panic("scan failed") } return scanner.Text() } func getNextInt(scanner *bufio.Scanner) int { i, _ := strconv.Atoi(getNextString(scanner)) return i } func getNextInt64(scanner *bufio.Scanner) int64 { i, _ := strconv.ParseInt(getNextString(scanner), 10, 64) return i } func getNextFloat64(scanner *bufio.Scanner) float64 { i, _ := strconv.ParseFloat(getNextString(scanner), 64) return i } func main() { fp := os.Stdin wfp := os.Stdout extra := 0 if os.Getenv("I") == "IronMan" { fp, _ = os.Open(os.Getenv("END_GAME")) extra = 100 } scanner := bufio.NewScanner(fp) configure(scanner) writer := bufio.NewWriter(wfp) defer func() { r := recover() if r != nil { fmt.Fprintln(writer, r) } writer.Flush() }() solve(scanner, writer) for i := 0; i < extra; i++ { fmt.Fprintln(writer, "-----------------------------------") solve(scanner, writer) } } func solve(scanner *bufio.Scanner, writer *bufio.Writer) { n := 5 tickets := make([]int64, n) for i := 0; i < n; i++ { tickets[i] = getNextInt64(scanner) } var l, r int64 l = -1 r = int64(1e16) for l+1 < r { m := (l + r) >> 1 if enable(m, tickets) { l = m continue } r = m } fmt.Fprintln(writer, l) } func enable(m int64, tickets []int64) bool { n := 5 tt := make([]int64, n) for i := 0; i < n; i++ { tt[i] = min(m, tickets[i]) - m } tt[0] += m tt[1] += m for i := 0; i < n; i++ { if tt[i%n] > 0 { tt[(i+2)%n] += tt[i%n] tt[i%n] = 0 } } for i := 0; i < n; i++ { if tt[i] < 0 { return false } } return true } func min(a, b int64) int64 { if a < b { return a } return b }