Problem ID Title Solved/Submit Pass Rate
1857【提高】立方体积木Cube Stacking
USACO 带权并查集 
0/0
0.000%
1974【基础】银河英雄传说
带权并查集 
1/1
100%
1975【基础】食物链
带权并查集 noi 
1/1
100%