①处应填( )
(sp1<sp2)
(sp1>sp2)
(sp1>=sp2)
(sp1<=sp2)
②处应填()
q[sp1][0]+1
q[sp1][1]
q[sp1][0]
q[sp2][0]+1
③处应填()
(!q[sp1][j])
(!q[sp2][j])
(q[sp2][j])
(q[sp1][j]!=0)
④处应填()
q[sp2][0]+1
q[sp2][0]
q[sp1][0]
q[sp1][0]-1
⑤处应填()
d[q[i][1]]
d[q[i][0]]+1
d[q[i][1]]-1
d[q[i][1]]+1
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