#507937 (Go) No.1006 Share an Integer

• 問題: No.1006 Share an Integer
• ユーザー: ccppjsrb
• 提出日時: 2020-07-07 21:43:53
• 言語: Go (1.22.1)
• 結果: AC
• 実行時間: 115 ms / 2,000 ms
• コード長: 1,779 bytes
• コンパイル時間: 10,945 ms
• コンパイル使用メモリ: 229,564 KB
• 実行使用メモリ: 19,924 KB
• 最終ジャッジ日時: 2024-10-01 20:31:34
• 合計ジャッジ時間: 14,344 ms
• ジャッジサーバーID （参考情報）: judge5 / judge2

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	101 ms; 19,924 KB
testcase_01	AC	101 ms; 19,924 KB
testcase_02	AC	108 ms; 19,924 KB
testcase_03	AC	104 ms; 19,920 KB
testcase_04	AC	101 ms; 19,920 KB
testcase_05	AC	99 ms; 19,920 KB
testcase_06	AC	97 ms; 19,920 KB
testcase_07	AC	98 ms; 19,924 KB
testcase_08	AC	95 ms; 19,920 KB
testcase_09	AC	96 ms; 19,924 KB
testcase_10	AC	101 ms; 19,924 KB
testcase_11	AC	104 ms; 19,924 KB
testcase_12	AC	115 ms; 19,924 KB
testcase_13	AC	115 ms; 19,920 KB
testcase_14	AC	109 ms; 19,924 KB
testcase_15	AC	105 ms; 19,924 KB
testcase_16	AC	104 ms; 19,924 KB
testcase_17	AC	110 ms; 19,924 KB
testcase_18	AC	110 ms; 19,920 KB
testcase_19	AC	108 ms; 19,924 KB
testcase_20	AC	112 ms; 19,924 KB
testcase_21	AC	106 ms; 19,920 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) {
	x := getNextInt(scanner)
	mx := 2000001
	era := make([]int, mx)
	for i := 1; i < mx; i++ {
		for j := i; j < mx; j += i {
			era[j]++
		}
	}
	mn := mx
	for i := 1; i < x; i++ {
		v := max(f(i, era[i])-f(x-i, era[x-i]), f(x-i, era[x-i])-f(i, era[i]))
		if mn > v {
			mn = v
		}
	}
	for i := 1; i < x; i++ {
		v := max(f(i, era[i])-f(x-i, era[x-i]), f(x-i, era[x-i])-f(i, era[i]))
		if mn == v {
			fmt.Fprintln(writer, fmt.Sprintf("%d %d", i, x-i))
		}
	}

}
func max(a, b int) int {
	if a < b {
		return b
	}
	return a
}
func f(n, d int) int {
	return n - d
}