結果

問題 No.569 3 x N グリッドのパスの数
コンテスト
ユーザー horiesiniti
提出日時 2017-09-15 05:27:47
言語 Ruby
(3.4.1)
結果
AC  
実行時間 321 ms / 2,000 ms
コード長 2,163 bytes
コンパイル時間 590 ms
コンパイル使用メモリ 7,424 KB
実行使用メモリ 12,672 KB
最終ジャッジ日時 2024-11-07 22:27:21
合計ジャッジ時間 14,637 ms
ジャッジサーバーID
（参考情報） 		judge5 / judge4
このコードへのチャレンジ
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ファイルパターン 結果
other AC * 60
権限があれば一括ダウンロードができます
コンパイルメッセージ
Syntax OK

ソースコード

diff # 

require 'set'
mod1=1000000007
def f(a1,a2)
	a1.each{|e|
		a2.push([e[0].reverse(),e[1].reverse])
	}
end
def g(all,es)
	es.each{|e1|
		e1.each{|e2|
			all.push([e2[0],e2[1],1])
		}
	}
end


def f2(perm,perm2)
	res=[]
	h1={}
	h2=Hash.new(0)
	
	perm2.each{|e|
		if !h1.key?(e[0]) then
			h1[e[0]]=[[e[1],e[2]]]
		else
			h1[e[0]].push([e[1],e[2]])
		end
	}
	mod1=1000000007
	perm.each{|e1|
		left=e1[0]
		r1=e1[1]
		p1=e1[2]
		if h1.key?(r1) then
			h1[r1].each{|e3|
				right=e3[0]
				p2=e3[1]
				h2[[left,right]]+=(p1*p2)%mod1
			}
		end
	}
	h2.each{|k,v|
		res.push([k[0],k[1],v])
	}
	
	return res
end

all=[]

a111=[	["0001","1000"],
	["1000","0001"]]

a110=[	["1000","0010"],
	["1023","0001"],
	["0010","1000"],
	["0001","3021"]]
a011=[]

f(a110,a011)

a101=[	["1230","0001"],
	["1203","0010"],
	["1000","0123"],
	["0100","1023"],
	["3021","0100"],
	["0321","1000"],
	["0001","3210"],
	["0010","3201"]]

a100=[	["0123","1023"],
	["0100","1000"],
	["0321","3021"],
	["3021","0321"],
	["1000","0100"],
	["1023","0123"],
	["0010","3210"],
	["0001","3201"],
	["1230","0010"],
	["1203","0001"]]
a001=[]
f(a100,a001)

a010=[	["0010","0100"],
	["0100","0010"],
	["3201","3021"],
	["1203","1023"],
	["1023","1203"],
	["3021","3201"],
	["0123","0001"],
	["0001","0321"],
	["1000","1230"],
	["3210","1000"]]
	
a000=[	["1000","1000"],
	["0100","0100"],
	["0010","0010"],
	["0001","0001"],
	["1230","1230"],
	["1203","1203"],
	["1023","1023"],
	["0123","0123"],
	["0321","0321"],
	["3201","3201"],
	["3021","3021"],
	["3210","3210"]]
	
g(all,[a000,a001,a010,a100,a011,a101,a110,a111])

s=[
	["0000","1000",1],
	["0000","0100",1],
	["0000","0010",1],
	["0000","0001",1],
	["0000","1230",1],
	["0000","1203",1],
	["0000","1023",1],
	["0000","0123",1]]
g=[
	["0001","0000",1],
	["0010","0000",1],
	["0100","0000",1],
	["1000","0000",1],
	["1203","0000",1],
	["1230","0000",1],
	["1023","0000",1],
	["0123","0000",1]
	]

n=gets.to_i
n=n-1
perm2=[]
allPerm=[]
s.each{|e|
	allPerm.push([e[0],e[1],1])	
}
all.each{|e|
	perm2.push([e[0],e[1],1])
}
while n>0
	if n%2==1  then
		allPerm=f2(allPerm,perm2)
	end
	perm2=f2(perm2,perm2)
	n=n/2
end
ans=f2(allPerm,g)
puts ans[0][2]%mod1
0