实用文档
ALGO9
importjavaiopublicclassMai
publicstaticvoidmai
Stri
gargsthrowsIOExceptio
BufferedReaderbf
ewBufferedReader
ewI
putStreamReaderSystemi
i
t
I
tegerparseI
tbfreadLi
eSystemoutpri
tl
i
tMathpow2
1210importjavaioimportjavautilArraysimportjavautilHashSetimportjavautilIteratorimportjavautilSet
publicclassMai
publicstaticvoidmai
Stri
gargsthrowsIOExceptio
BufferedReaderbr
ewBufferedReader
ewI
putStreamReaderSystemi
i
t
I
tegerparseI
tbrreadLi
e
i
tarr
ewi
t
Stri
gstbrreadLi
esplit