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| 2 | jiangly | 3823 |
| 3 | Benq | 3738 |
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| 3 | maomao90 | 162 |
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| 9 | nor | 153 |
Recently I came across this problem from Atcoder Beginner Contest 130
Link-Zig Zag Tree
After trying very hard I was not able to understand the editorial explanation. So I request anyone who knows the problem solution to help me solve it.
Also suggest similar problems
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