The $ b $-weight distribution for MDS codes

For a positive integer $ b\ge2 $, the b $-symbol code is new coding framework proposed to combat $-errors in read channels. Especially, 2 called symbol-pair code. Remarkably, classical maximum distance separable (MDS) also an MDS Recently, for any \mathcal{C} Ma and Luo determined weight distribution of $. In this paper, by calculating number solutions some equations utilizing shortened codes we give connection between $-weight codewords with special shape. Note that are codes, these shape shorten method r $-combinations multiset problem. From above calculation, determined. Our result generalizes corresponding [15].