①处应填()
al[i]=a2[i];a2[i]=t
a2[i]=t
al[i]=a2[i]
a2[i]=al[i];al[i]=t
②处应填()
kzl[i]=kz2[i]=0
kzl[i]=kz2[i]=1
kzl[i]=1
kz2[i]=0
③处应填()
kz1[j]=kz2[i]=-1
kz1[i]=kz2[j]=0
kz1[i]=kz2[j]=1
kz1[j]=kz2[i]=0
④处应填()
al[j]==a1[kj]&& kz1[j]==-1
a1[j]!=a2[kj]
al[j]==al[i]&&kz1[j]==-1
al[j]==al[kj]&&kzl[j]==1
⑤处应填()
a1[j]!=a2[i]
a2[j]==a2[kj]&&kz2[j]==-1
a2[j]==a2[i]&& kz2[j]==-1
a2[j]==a2[i]&&kz2[j]==1
⑥处应填()
cross(al,a2,tl,t2,n+1)
cross(al,a2,tl,t2,n-1)
crss(al,a2,t1-1,t2+1,n)
cross(al,a2,t1,t2,n)
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