The graceful tree conjecture
Show that every tree with m edges can be labelled by distinct numbers 0 to m so that the edge differences are exactly 1 to m.
Issue
疑问、子问题和求助。把大问题拆成子 Issue;从任何一个 Issue 都能开出路线。
没有开放的 Issue
Issue 用来放疑问、子问题和求助。
Show that every tree with m edges can be labelled by distinct numbers 0 to m so that the edge differences are exactly 1 to m.
疑问、子问题和求助。把大问题拆成子 Issue;从任何一个 Issue 都能开出路线。
Issue 用来放疑问、子问题和求助。