#512180 (Go) No.40 多項式の割り算

• 問題: No.40 多項式の割り算
• ユーザー: ccppjsrb
• 提出日時: 2020-07-16 10:35:23
• 言語: Go (1.22.1)
• 結果: AC
• 実行時間: 2 ms / 5,000 ms
• コード長: 1,912 bytes
• コンパイル時間: 11,135 ms
• コンパイル使用メモリ: 221,232 KB
• 実行使用メモリ: 6,948 KB
• 最終ジャッジ日時: 2024-05-03 08:36:37
• 合計ジャッジ時間: 11,388 ms
• ジャッジサーバーID （参考情報）: judge1 / judge5

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	2 ms; 6,812 KB
testcase_01	AC	1 ms; 6,944 KB
testcase_02	AC	1 ms; 6,944 KB
testcase_03	AC	0 ms; 6,940 KB
testcase_04	AC	1 ms; 6,944 KB
testcase_05	AC	1 ms; 6,940 KB
testcase_06	AC	1 ms; 6,940 KB
testcase_07	AC	2 ms; 6,940 KB
testcase_08	AC	1 ms; 6,940 KB
testcase_09	AC	1 ms; 6,944 KB
testcase_10	AC	1 ms; 6,940 KB
testcase_11	AC	1 ms; 6,940 KB
testcase_12	AC	1 ms; 6,940 KB
testcase_13	AC	1 ms; 6,940 KB
testcase_14	AC	1 ms; 6,940 KB
testcase_15	AC	1 ms; 6,940 KB
testcase_16	AC	2 ms; 6,940 KB
testcase_17	AC	1 ms; 6,940 KB
testcase_18	AC	1 ms; 6,940 KB
testcase_19	AC	1 ms; 6,940 KB
testcase_20	AC	2 ms; 6,940 KB
testcase_21	AC	1 ms; 6,940 KB
testcase_22	AC	1 ms; 6,940 KB
testcase_23	AC	2 ms; 6,940 KB
testcase_24	AC	1 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; 6,940 KB
testcase_28	AC	1 ms; 6,940 KB
testcase_29	AC	1 ms; 6,940 KB
testcase_30	AC	1 ms; 6,940 KB
testcase_31	AC	1 ms; 6,948 KB
testcase_32	AC	1 ms; 6,944 KB
testcase_33	AC	1 ms; 6,944 KB
testcase_34	AC	1 ms; 6,944 KB

ソースコード

package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
	"strings"
)

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) + 1
	aa := make([]int, n)
	for i := 0; i < n; i++ {
		aa[n-1-i] = getNextInt(scanner)
	}
	for i := 0; i+3 < n; i++ {
		if aa[i] == 0 {
			continue
		}
		aa[i+2] += aa[i]
		aa[i] = 0
	}
	bb := make([]string, 0)
	for i := first(aa); i < n; i++ {
		bb = append(bb, fmt.Sprintf("%d", aa[i]))
	}
	if len(bb) == 0 {
		fmt.Fprintln(writer, 0)
		fmt.Fprintln(writer, 0)
		return
	}
	fmt.Fprintln(writer, len(bb)-1)
	for i := 0; i < len(bb)/2; i++ {
		bb[i], bb[len(bb)-1-i] = bb[len(bb)-1-i], bb[i]
	}
	fmt.Fprintln(writer, strings.Join(bb, " "))
}

func first(aa []int) int {
	n := len(aa)
	for i := 0; i < n; i++ {
		if aa[i] != 0 {
			return i
		}
	}
	return n
}