Assume that an upper triangular matrix a[0 .. n-1, 0.. n-1] is stored in a linear array b[0 .. (1/2)n(n+1)-1] in lexicographical order. If a[0,0] is stored in b[0], where is a{800, 900} stored in array b for n =1000?
- b[490500]
- b[480501]
- b[500499]
- None of the above