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The problem description is tricky and easily misleading. Specifically it says:
...Each of the subsequent lines contains two space-separated integers, *ui* and *vi* , describing an edge between nodes *u* and *v*.
*ui*
*vi*
*u*
*v*
An edge input like this:
3 4
does not mean that 3 is the parent. The parent may as well be noted on the right side. The correct interpretation:
3
There is just a link between 3 and 4, it's unspecified which one is tree node/leaf node.
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Java Visitor Pattern
You are viewing a single comment's thread. Return to all comments →
The problem description is tricky and easily misleading. Specifically it says:
...Each of the subsequent lines contains two space-separated integers,
*ui*and*vi*, describing an edge between nodes*u*and*v*.An edge input like this:
3 4does not mean that
3is the parent. The parent may as well be noted on the right side. The correct interpretation:There is just a link between 3 and 4, it's unspecified which one is tree node/leaf node.