[2020-CCPC Changchun Onsite]-F. Strange Memory(dsu on tree)
[2020-CCPC Changchun Onsite]-F. Strange Memory(dsu on tree) 题面: 题意: 给定一个含有\(\mathit n\)个节点的数,求下 ...
[2020-CCPC Changchun Onsite]-F. Strange Memory(dsu on tree) 题面: 题意: 给定一个含有\(\mathit n\)个节点的数,求下 ...