填空题
14
A.(i-1)*n+j B.(i-1)*n+j-1 C.i*(j-1) D.j*m+i-1
A.i(i+1)/2+j B.j(j+1)/2+i C.i(j-i)/2+1 D.j(i-1)/2+1
A.A[8,5] B.A[3,10] C.A[5,8] D.A[0,9]
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