应该这个吧:两个数组中1的个数分别为m,n,第二个数组中0的个数为q: 1)m>=n,m<=q:C(m-n,q)到C(m,q)累加-1; 2)m>=n,m>q:C(m-n,q)到C(q,q)累加-1; 3)m<n,m<=q:C(0,q)到C(m,q)累加-1; 4)m<n,m>q:C(0,q)到C(q,q)累加-1;
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