#494062 (Go) No.612 Move on grid

• 問題: No.612 Move on grid
• ユーザー: ccppjsrb
• 提出日時: 2020-06-08 16:18:28
• 言語: Go (1.22.1)
• 結果: AC
• 実行時間: 102 ms / 2,500 ms
• コード長: 2,935 bytes
• コンパイル時間: 13,943 ms
• コンパイル使用メモリ: 237,488 KB
• 実行使用メモリ: 5,376 KB
• 最終ジャッジ日時: 2024-06-07 15:14:33
• 合計ジャッジ時間: 15,616 ms
• ジャッジサーバーID （参考情報）: judge2 / judge4

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	2 ms; 5,248 KB
testcase_02	AC	2 ms; 5,376 KB
testcase_03	AC	12 ms; 5,376 KB
testcase_04	AC	30 ms; 5,376 KB
testcase_05	AC	102 ms; 5,376 KB
testcase_06	AC	82 ms; 5,376 KB
testcase_07	AC	25 ms; 5,376 KB
testcase_08	AC	80 ms; 5,376 KB
testcase_09	AC	51 ms; 5,376 KB
testcase_10	AC	35 ms; 5,376 KB
testcase_11	AC	16 ms; 5,376 KB
testcase_12	AC	50 ms; 5,376 KB
testcase_13	AC	23 ms; 5,376 KB
testcase_14	AC	64 ms; 5,376 KB
testcase_15	AC	16 ms; 5,376 KB
testcase_16	AC	76 ms; 5,376 KB
testcase_17	AC	19 ms; 5,376 KB
testcase_18	AC	64 ms; 5,376 KB
testcase_19	AC	30 ms; 5,376 KB
testcase_20	AC	41 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) {
	t := getNextInt(scanner)
	a := getNextInt(scanner)
	b := getNextInt(scanner)
	c := getNextInt(scanner)
	d := getNextInt(scanner)
	e := getNextInt(scanner)
	geta := 10000
	dp := make([]mint, geta*2+1)
	dp[geta] = 1
	for i := 0; i < t; i++ {
		dp2 := make([]mint, geta*2+1)
		for j := 0; j < geta*2+1; j++ {
			if dp[j] == 0 {
				continue
			}
			dp2[j-a].addAs(dp[j])
			dp2[j+a].addAs(dp[j])
			dp2[j-b].addAs(dp[j])
			dp2[j+b].addAs(dp[j])
			dp2[j-c].addAs(dp[j])
			dp2[j+c].addAs(dp[j])
		}
		dp = dp2
	}
	var ans mint
	for i := d; i < e+1; i++ {
		ans.addAs(dp[i+geta])
	}
	fmt.Fprintln(writer, ans)
}

type mint int64

func (mt mint) mod() mint {
	m := mint(1e9 + 7)
	mt %= m
	if mt < 0 {
		return mt + m
	}
	return mt
}
func (mt mint) inv() mint {
	return mt.pow(mint(0).sub(2))
}
func (mt mint) pow(n mint) mint {
	p := mint(1)
	for n > 0 {
		if n%2 == 1 {
			p.mulAs(mt)
		}
		mt.mulAs(mt)
		n >>= 1
	}
	return p
}
func (mt mint) mintize(x interface{}) mint {
	if y, isMint := x.(mint); isMint {
		return y
	}
	if y, isInt64 := x.(int64); isInt64 {
		return mint(y)
	}
	return mint(x.(int))
}
func (mt mint) add(x interface{}) mint {
	return (mt + mt.mintize(x)).mod()
}
func (mt mint) sub(x interface{}) mint {
	return (mt - mt.mintize(x)).mod()
}
func (mt mint) mul(x interface{}) mint {
	return (mt * mt.mintize(x)).mod()
}
func (mt mint) div(x interface{}) mint {
	return mt.mul(mt.mintize(x).inv())
}
func (mt *mint) addAs(x interface{}) *mint {
	*mt = mt.add(x)
	return mt
}
func (mt *mint) subAs(x interface{}) *mint {
	*mt = mt.sub(x)
	return mt
}
func (mt *mint) mulAs(x interface{}) *mint {
	*mt = mt.mul(x)
	return mt
}
func (mt *mint) divAs(x interface{}) *mint {
	*mt = mt.div(x)
	return mt
}