#511955 (Go) No.751 Frac #2

• 問題: No.751 Frac #2
• ユーザー: ccppjsrb
• 提出日時: 2020-07-15 19:44:59
• 言語: Go (1.22.1)
• 結果: WA
• 実行時間: -
• コード長: 1,822 bytes
• コンパイル時間: 15,659 ms
• コンパイル使用メモリ: 220,716 KB
• 実行使用メモリ: 6,820 KB
• 最終ジャッジ日時: 2024-11-22 08:56:28
• 合計ジャッジ時間: 16,850 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	2 ms; 6,820 KB
testcase_01	AC	2 ms; 6,816 KB
testcase_02	AC	2 ms; 6,816 KB
testcase_03	WA	-
testcase_04	WA	-
testcase_05	WA	-
testcase_06	WA	-
testcase_07	AC	2 ms; 6,820 KB
testcase_08	WA	-
testcase_09	WA	-
testcase_10	WA	-
testcase_11	WA	-
testcase_12	AC	2 ms; 6,820 KB
testcase_13	AC	2 ms; 6,816 KB
testcase_14	AC	1 ms; 6,816 KB
testcase_15	WA	-
testcase_16	AC	2 ms; 6,820 KB
testcase_17	WA	-
testcase_18	WA	-
testcase_19	WA	-
testcase_20	WA	-
testcase_21	WA	-
testcase_22	WA	-
testcase_23	WA	-
testcase_24	WA	-
testcase_25	AC	2 ms; 6,816 KB
testcase_26	WA	-
testcase_27	WA	-
testcase_28	WA	-
testcase_29	WA	-
testcase_30	AC	2 ms; 6,816 KB
testcase_31	WA	-
testcase_32	WA	-
testcase_33	AC	1 ms; 6,820 KB
testcase_34	WA	-
testcase_35	AC	1 ms; 6,816 KB
testcase_36	WA	-
testcase_37	WA	-

ソースコード

package main

import (
	"bufio"
	"fmt"
	"math/big"
	"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 := getNextInt(scanner)
	a := getNextInt64(scanner)
	ans := big.NewRat(a, 1)
	for i := 1; i < n; i++ {
		a = getNextInt64(scanner)
		ans.Mul(ans, big.NewRat(1, a))
	}
	nn := getNextInt(scanner)
	bb := make([]int64, nn)
	for i := 0; i < nn; i++ {
		bb[i] = getNextInt64(scanner)
	}
	b := rec(0, nn, bb)
	fmt.Fprintln(writer, fmt.Sprintf("%d %d", ans.Num().Int64()*b.Denom().Int64(), ans.Denom().Int64()*b.Num().Int64()))
}
func rec(i, n int, bb []int64) *big.Rat {
	if i == n {
		return big.NewRat(1, 1)
	}
	r := rec(i+1, n, bb)
	return big.NewRat(bb[i]*r.Denom().Int64(), r.Num().Int64())
}