結果
問題 | No.1340 おーじ君をさがせ |
ユーザー | 👑 Kazun |
提出日時 | 2021-01-15 22:16:04 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 732 ms / 2,000 ms |
コード長 | 6,774 bytes |
コンパイル時間 | 142 ms |
コンパイル使用メモリ | 82,432 KB |
実行使用メモリ | 81,536 KB |
最終ジャッジ日時 | 2024-05-05 21:48:25 |
合計ジャッジ時間 | 12,078 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
(要ログイン)
テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 48 ms
55,040 KB |
testcase_01 | AC | 48 ms
54,912 KB |
testcase_02 | AC | 42 ms
55,040 KB |
testcase_03 | AC | 44 ms
54,912 KB |
testcase_04 | AC | 42 ms
55,040 KB |
testcase_05 | AC | 44 ms
54,656 KB |
testcase_06 | AC | 43 ms
54,784 KB |
testcase_07 | AC | 44 ms
55,168 KB |
testcase_08 | AC | 43 ms
54,656 KB |
testcase_09 | AC | 43 ms
54,912 KB |
testcase_10 | AC | 63 ms
68,480 KB |
testcase_11 | AC | 149 ms
76,288 KB |
testcase_12 | AC | 82 ms
70,784 KB |
testcase_13 | AC | 262 ms
77,952 KB |
testcase_14 | AC | 254 ms
76,544 KB |
testcase_15 | AC | 215 ms
76,416 KB |
testcase_16 | AC | 71 ms
69,760 KB |
testcase_17 | AC | 116 ms
76,288 KB |
testcase_18 | AC | 151 ms
76,544 KB |
testcase_19 | AC | 60 ms
66,432 KB |
testcase_20 | AC | 56 ms
64,512 KB |
testcase_21 | AC | 157 ms
76,416 KB |
testcase_22 | AC | 732 ms
81,536 KB |
testcase_23 | AC | 171 ms
76,544 KB |
testcase_24 | AC | 542 ms
77,952 KB |
testcase_25 | AC | 88 ms
76,544 KB |
testcase_26 | AC | 75 ms
74,880 KB |
testcase_27 | AC | 68 ms
71,936 KB |
testcase_28 | AC | 87 ms
76,672 KB |
testcase_29 | AC | 64 ms
70,144 KB |
testcase_30 | AC | 162 ms
76,544 KB |
testcase_31 | AC | 518 ms
77,824 KB |
testcase_32 | AC | 528 ms
77,440 KB |
testcase_33 | AC | 533 ms
77,568 KB |
testcase_34 | AC | 459 ms
77,440 KB |
testcase_35 | AC | 524 ms
77,440 KB |
testcase_36 | AC | 50 ms
55,424 KB |
testcase_37 | AC | 67 ms
67,456 KB |
testcase_38 | AC | 530 ms
78,080 KB |
testcase_39 | AC | 193 ms
76,928 KB |
testcase_40 | AC | 187 ms
76,544 KB |
testcase_41 | AC | 187 ms
76,672 KB |
testcase_42 | AC | 51 ms
62,208 KB |
testcase_43 | AC | 53 ms
62,080 KB |
testcase_44 | AC | 59 ms
65,536 KB |
testcase_45 | AC | 57 ms
63,104 KB |
testcase_46 | AC | 157 ms
77,056 KB |
testcase_47 | AC | 159 ms
76,544 KB |
testcase_48 | AC | 170 ms
76,800 KB |
testcase_49 | AC | 163 ms
76,288 KB |
testcase_50 | AC | 166 ms
76,288 KB |
testcase_51 | AC | 170 ms
76,416 KB |
testcase_52 | AC | 266 ms
76,928 KB |
testcase_53 | AC | 261 ms
76,416 KB |
testcase_54 | AC | 261 ms
76,160 KB |
testcase_55 | AC | 218 ms
76,800 KB |
testcase_56 | AC | 52 ms
63,488 KB |
testcase_57 | AC | 54 ms
63,360 KB |
testcase_58 | AC | 46 ms
55,552 KB |
testcase_59 | AC | 122 ms
76,672 KB |
testcase_60 | AC | 43 ms
55,040 KB |
testcase_61 | AC | 127 ms
76,544 KB |
ソースコード
from copy import copy,deepcopy class Matrix_Error(Exception): pass class Matrix(): #入力 def __init__(self,M=[]): self.ele=M R=len(M) if R!=0: C=len(M[0]) else: C=0 self.row=R self.col=C self.size=(R,C) #出力 def __str__(self): T="" (r,c)=self.size for i in range(r): U="[" for j in range(c): U+=str(self.ele[i][j])+" " T+=U[:-1]+"]\n" return "["+T[:-1]+"]" #+,- def __pos__(self): return self def __neg__(self): return self.__scale__(-1) #加法 def __add__(self,other): A=self B=other if A.size!=B.size: raise Matrix_Error("2つの行列のサイズが異なります.({},{})".format(A.size,B.size)) M=A.ele N=B.ele L=[] for i in range(A.row): E=[] for j in range(A.col): E.append(M[i][j]|N[i][j]) L.append(E) return Matrix(L) #減法 def __sub__(self,other): return self+(-other) #乗法 def __mul__(self,other): A=self B=other if isinstance(B,Matrix): R=A.row C=B.col if A.col!=B.row: raise Matrix_Error("左側の列と右側の行が一致しません.({},{})".format(A.size,B.size)) G=A.col M=A.ele N=B.ele E=[] for i in range(R): F=[] for j in range(C): S=0 for k in range(G): S|=M[i][k]&N[k][j] F.append(S) E.append(F) return Matrix(E) elif isinstance(B,int): return A.__scale__(B) def __rmul__(self,other): if isinstance(other,int): return self*other def Inverse(self): from copy import copy M=self if M.row!=M.col: raise Matrix_Error("正方行列ではありません.") R=M.row I=[[1*(i==j) for j in range(R)] for i in range(R)] G=M.Column_Union(Matrix(I)) G=G.Row_Reduce() A,B=[],[] for i in range(R): A.append(copy(G.ele[i][:R])) B.append(copy(G.ele[i][R:])) if A==I: return Matrix(B) else: raise Matrix_Error("正則ではありません.") #スカラー倍 def __scale__(self,r): M=self.ele L=[[r*M[i][j] for j in range(self.col)] for i in range(self.row)] return Matrix(L) #累乗 def __pow__(self,n): A=self if A.row!=A.col: raise Matrix_Error("正方行列ではありません.") if n<0: return (A**(-n)).Inverse() R=Matrix([[1*(i==j) for j in range(A.row)] for i in range(A.row)]) D=A while n>0: if n%2==1: R*=D D*=D n=n>>1 return R #等号 def __eq__(self,other): A=self B=other if A.size!=B.size: return False for i in range(A.row): for j in range(A.col): if A.ele[i][j]!=B.ele[i][j]: return False return True #不等号 def __neq__(self,other): return not(self==other) #転置 def Transpose(self): self.col,self.row=self.row,self.col self.ele=list(map(list,zip(*self.ele))) #行基本変形 def Row_Reduce(self): M=self (R,C)=M.size T=[] for i in range(R): U=[] for j in range(C): U.append(M.ele[i][j]) T.append(U) I=0 for J in range(C): if T[I][J]==0: for i in range(I+1,R): if T[i][J]!=0: T[i],T[I]=T[I],T[i] break if T[I][J]!=0: u=T[I][J] for j in range(C): T[I][j]/=u for i in range(R): if i!=I: v=T[i][J] for j in range(C): T[i][j]-=v*T[I][j] I+=1 if I==R: break return Matrix(T) #列基本変形 def Column_Reduce(self): M=self (R,C)=M.size T=[] for i in range(R): U=[] for j in range(C): U.append(M.ele[i][j]) T.append(U) J=0 for I in range(R): if T[I][J]==0: for j in range(J+1,C): if T[I][j]!=0: for k in range(R): T[k][j],T[k][J]=T[k][J],T[k][j] break if T[I][J]!=0: u=T[I][J] for i in range(R): T[i][J]/=u for j in range(C): if j!=J: v=T[I][j] for i in range(R): T[i][j]-=v*T[i][J] J+=1 if J==C: break return Matrix(T) #行列の階数 def Rank(self,ep=None): M=self.Row_Reduce() (R,C)=M.size T=M.ele S=0 for i in range(R): f=False if ep==None: for j in range(C): if T[i][j]!=0: f=True else: for j in range(C): if abs(T[i][j])>=ep: f=True if f: S+=1 else: break return S #行の結合 def Row_Union(self,other): return Matrix(self.ele+other.ele) #列の結合 def Column_Union(self,other): E=[] for i in range(self.row): E.append(self.ele[i]+other.ele[i]) return Matrix(E) def __getitem__(self,index): assert isinstance(index,tuple) and len(index)==2 return self.ele[index[0]][index[1]] def __setitem__(self,index,val): assert isinstance(index,tuple) and len(index)==2 self.ele[index[0]][index[1]]=val #================================================ import sys input=sys.stdin.readline N,M,T=map(int,input().split()) X=Matrix([[0]*N for _ in range(N)]) for _ in range(M): a,b=map(int,input().split()) X[b,a]=1 v=X**T*Matrix([[1 if i==0 else 0] for i in range(N)]) K=0 for i in range(N): if v[i,0]: K+=1 print(K)