#515960 (Go) No.1120 Strange Teacher

• 問題: No.1120 Strange Teacher
• ユーザー: ccppjsrb
• 提出日時: 2020-07-22 21:37:04
• 言語: Go (1.22.1)
• 結果: WA
• 実行時間: -
• コード長: 2,192 bytes
• コンパイル時間: 15,989 ms
• コンパイル使用メモリ: 225,052 KB
• 実行使用メモリ: 6,948 KB
• 最終ジャッジ日時: 2024-06-22 14:26:05
• 合計ジャッジ時間: 14,201 ms
• ジャッジサーバーID （参考情報）: judge3 / judge2

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	1 ms; 6,812 KB
testcase_01	AC	1 ms; 6,816 KB
testcase_02	AC	1 ms; 6,812 KB
testcase_03	AC	2 ms; 6,812 KB
testcase_04	AC	17 ms; 6,940 KB
testcase_05	AC	18 ms; 6,944 KB
testcase_06	AC	18 ms; 6,940 KB
testcase_07	AC	19 ms; 6,940 KB
testcase_08	AC	18 ms; 6,940 KB
testcase_09	AC	1 ms; 6,940 KB
testcase_10	AC	19 ms; 6,944 KB
testcase_11	AC	19 ms; 6,940 KB
testcase_12	AC	20 ms; 6,944 KB
testcase_13	AC	17 ms; 6,944 KB
testcase_14	AC	17 ms; 6,944 KB
testcase_15	AC	17 ms; 6,940 KB
testcase_16	AC	17 ms; 6,940 KB
testcase_17	AC	17 ms; 6,940 KB
testcase_18	AC	1 ms; 6,940 KB
testcase_19	AC	18 ms; 6,940 KB
testcase_20	WA	-
testcase_21	WA	-
testcase_22	AC	1 ms; 6,944 KB
testcase_23	AC	1 ms; 6,940 KB
testcase_24	AC	16 ms; 6,944 KB
testcase_25	AC	1 ms; 6,944 KB
testcase_26	AC	1 ms; 6,944 KB
testcase_27	AC	1 ms; 6,944 KB
testcase_28	AC	1 ms; 6,944 KB
testcase_29	AC	1 ms; 6,940 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) {
	n := getNextInt(scanner)
	aa := make([]int64, n)
	bb := make([]int64, n)
	cc := make([]int64, n)
	for i := 0; i < n; i++ {
		aa[i] = getNextInt64(scanner)
	}
	for i := 0; i < n; i++ {
		bb[i] = getNextInt64(scanner)
	}
	m := map[int64]int{}
	var sum int64
	for i := 0; i < n; i++ {
		cc[i] = aa[i] - bb[i]
		m[mod(cc[i], 2)]++
		sum += cc[i]
	}
	if len(m) > 1 {
		fmt.Fprintln(writer, -1)
		return
	}
	if sum < 0 {
		fmt.Fprintln(writer, -1)
		return
	}
	if sum%int64(n-2) != 0 {
		fmt.Fprintln(writer, -1)
		return
	}
	cnt := sum / int64(n-2)
	for i := 0; i < n; i++ {
		aa[i] -= cnt
	}
	var horobiyo int64
	for i := 0; i < n; i++ {
		if aa[i] > bb[i] {
			fmt.Fprintln(writer, -1)
			return
		}
		if (bb[i]-aa[i])%2 == 1 {
			fmt.Fprintln(writer, -1)
			return
		}
		horobiyo += (bb[i] - aa[i]) / 2
	}
	if horobiyo != cnt {
		fmt.Fprintln(writer, -1)
		return
	}
	fmt.Fprintln(writer, cnt)
}

func mod(n, m int64) int64 {
	n %= m
	if n < 0 {
		return n + m
	}
	return n
}