結果

問題 No.1596 Distance Sum in 2D Plane
ユーザー 👑 Kazun
提出日時 2021-07-09 21:39:40
言語 PyPy3
(7.3.15)
結果
AC  
実行時間 625 ms / 2,000 ms
コード長 5,573 bytes
コンパイル時間 157 ms
コンパイル使用メモリ 82,156 KB
実行使用メモリ 182,300 KB
最終ジャッジ日時 2024-07-01 15:35:10
合計ジャッジ時間 8,609 ms
ジャッジサーバーID
(参考情報)
judge2 / judge4
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 3
other AC * 17
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

class Modulo_Error(Exception):
pass
class Modulo():
__slots__=["a","n"]
def __init__(self,a,n):
self.a=a%n
self.n=n
def __str__(self):
return "{} (mod {})".format(self.a,self.n)
def __repr__(self):
return self.__str__()
#+,-
def __pos__(self):
return self
def __neg__(self):
return Modulo(-self.a,self.n)
#,
def __eq__(self,other):
if isinstance(other,Modulo):
return (self.a==other.a) and (self.n==other.n)
elif isinstance(other,int):
return (self-other).a==0
def __neq__(self,other):
return not(self==other)
def __le__(self,other):
a,p=self.a,self.n
b,q=other.a,other.n
return (a-b)%q==0 and p%q==0
def __ge__(self,other):
return other<=self
def __lt__(self,other):
return (self<=other) and (self!=other)
def __gt__(self,other):
return (self>=other) and (self!=other)
def __contains__(self,val):
return val%self.n==self.a
#
def __add__(self,other):
if isinstance(other,Modulo):
if self.n!=other.n:
raise Modulo_Error(".")
return Modulo(self.a+other.a,self.n)
elif isinstance(other,int):
return Modulo(self.a+other,self.n)
def __radd__(self,other):
if isinstance(other,int):
return Modulo(self.a+other,self.n)
def __iadd__(self,other):
if isinstance(other,Modulo):
if self.n!=other.n: raise Modulo_Error(".")
self.a+=other.a
if self.a>=self.n: self.a-=self.n
elif isinstance(other,int):
self.a+=other
if self.a>=self.n: self.a-=self.n
return self
#
def __sub__(self,other):
return self+(-other)
def __rsub__(self,other):
if isinstance(other,int):
return -self+other
def __isub__(self,other):
if isinstance(other,Modulo):
if self.n!=other.n: raise Modulo_Error(".")
self.a-=other.a
if self.a<0: self.a+=self.n
elif isinstance(other,int):
self.a-=other
if self.a<0: self.a+=self.n
return self
#
def __mul__(self,other):
if isinstance(other,Modulo):
if self.n!=other.n:
raise Modulo_Error(".")
return Modulo(self.a*other.a,self.n)
elif isinstance(other,int):
return Modulo(self.a*other,self.n)
def __rmul__(self,other):
if isinstance(other,int):
return Modulo(self.a*other,self.n)
def __imul__(self,other):
if isinstance(other,Modulo):
if self.n!=other.n: raise Modulo_Error(".")
self.a*=other.a
elif isinstance(other,int):
self.a*=other
self.a%=self.n
return self
#Modulo
def inverse(self):
return self.Modulo_Inverse()
def Modulo_Inverse(self):
s,t=1,0
a,b=self.a,self.n
while b:
q,a,b=a//b,b,a%b
s,t=t,s-q*t
if a!=1:
raise Modulo_Error("{}".format(self))
else:
return Modulo(s,self.n)
#
def __truediv__(self,other):
return self*(other.Modulo_Inverse())
def __rtruediv__(self,other):
return other*(self.Modulo_Inverse())
#
def __pow__(self,other):
if isinstance(other,int):
u=abs(other)
r=Modulo(pow(self.a,u,self.n),self.n)
if other>=0:
return r
else:
return r.Modulo_Inverse()
else:
b,n=other.a,other.n
if pow(self.a,n,self.n)!=1:
raise Modulo_Error(".")
else:
return self**b
def Factor_Modulo(N,M,Mode=0):
"""
Mode=0:N! (mod M) .
Mode=1:k! (mod M) (k=0,1,...,N) .
[]
O(N)
"""
if Mode==0:
X=Modulo(1,M)
for k in range(1,N+1):
X*=k
return X
else:
L=[Modulo(1,M)]*(N+1)
for k in range(1,N+1):
L[k]=k*L[k-1]
return L
def Factor_Modulo_with_Inverse(N,M):
"""
k=0,1,...,N k! (mod M) (k!)^(-1) (mod M) .
[]
N,M:
M>0
[]
N+1 (F,G):F[k]=k! (mod M), G[k]=(k!)^(-1) (mod M)
[]
O(N)
"""
assert M>0
F=Factor_Modulo(N,M,Mode=1)
G=[0]*(N+1)
G[-1]=F[-1].inverse()
for k in range(N,0,-1):
G[k-1]=k*G[k]
return F,G
#=================================================
def nCr(n,r):
return F[n]*G[r]*G[n-r]
#=================================================
import sys
input=sys.stdin.readline
N,M=map(int,input().split())
Data=[]
for _ in range(M):
t,x,y=map(int,input().split())
Data.append((t,x,y))
#===
Mod=10**9+7
F,G=Factor_Modulo_with_Inverse(2*N+1,Mod)
X=(2*N)*nCr(2*N,N)
#===
for t,x,y in Data:
if t==1:
xx=x+1; yy=y
else:
xx=x; yy=y+1
a=nCr(x+y,x)
b=nCr(2*N-(xx+yy),N-xx)
X-=nCr(x+y,x)*nCr(2*N-(xx+yy),N-xx)
print(X.a)
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
0