Expand description
$\mathtt{a_k} = \sum_{\mathtt{i \lor j = k, i \land j = 0}} \mathtt{f_i} * \mathtt{g_j}$
を満たすaを求める。
§Problems
Functions§
- subset_
convolution - $\mathtt{a_k} = \sum_{\mathtt{i \lor j = k, i \land j = 0}} \mathtt{f_i} * \mathtt{g_j}$
を満たす
aを求める。