#558651 (Go) No.1237 EXP Multiple!

• 問題: No.1237 EXP Multiple!
• ユーザー: ccppjsrb
• 提出日時: 2020-09-25 23:52:06
• 言語: Go (1.22.1)
• 結果: AC
• 実行時間: 25 ms / 2,000 ms
• コード長: 1,918 bytes
• コンパイル時間: 14,593 ms
• コンパイル使用メモリ: 222,368 KB
• 実行使用メモリ: 5,376 KB
• 最終ジャッジ日時: 2024-06-28 08:41:35
• 合計ジャッジ時間: 15,976 ms
• ジャッジサーバーID （参考情報）: judge4 / judge1

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	1 ms; 5,248 KB
testcase_01	AC	17 ms; 5,376 KB
testcase_02	AC	23 ms; 5,376 KB
testcase_03	AC	23 ms; 5,376 KB
testcase_04	AC	25 ms; 5,376 KB
testcase_05	AC	11 ms; 5,376 KB
testcase_06	AC	11 ms; 5,376 KB
testcase_07	AC	11 ms; 5,376 KB
testcase_08	AC	13 ms; 5,376 KB
testcase_09	AC	11 ms; 5,376 KB
testcase_10	AC	11 ms; 5,376 KB
testcase_11	AC	11 ms; 5,376 KB
testcase_12	AC	12 ms; 5,376 KB
testcase_13	AC	12 ms; 5,376 KB
testcase_14	AC	12 ms; 5,376 KB
testcase_15	AC	12 ms; 5,376 KB
testcase_16	AC	12 ms; 5,376 KB
testcase_17	AC	13 ms; 5,376 KB
testcase_18	AC	13 ms; 5,376 KB
testcase_19	AC	11 ms; 5,376 KB

ソースコード

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) {
	const Mod1000000007 = 1000000007
	n := getNextInt(scanner)
	aa := make([]int64, n)
	for i := 0; i < n; i++ {
		aa[i] = getNextInt64(scanner)
	}
	var ans int64 = 1
	for i := 0; i < n; i++ {
		if aa[i] == 0 {
			fmt.Fprintln(writer, -1)
			return
		}
	}
	for i := 0; i < n; i++ {
		if aa[i] > 3 {
			fmt.Fprintln(writer, Mod1000000007)
			return
		}
		ans *= pow(aa[i], fac(aa[i]))
		if ans >= Mod1000000007 {
			fmt.Fprintln(writer, Mod1000000007)
			return
		}
	}
	fmt.Fprintln(writer, Mod1000000007%ans)
}
func pow(a int64, b int64) int64 {
	var ans int64 = 1
	for b > 0 {
		ans *= a
		b--
	}
	return ans
}
func fac(a int64) int64 {
	var ans int64 = 1
	for a > 0 {
		ans *= a
		a--
	}
	return ans
}