Submission #1674706
Source Code Expand
n, x = gets.chomp.split(" ").map(&:to_i) node = Struct.new("Node", :to) @h = [0] + gets.chomp.split(" ").map(&:to_i) @g = Array.new(n+1){node.new([])} (n-1).times do a, b = gets.chomp.split(" ").map(&:to_i) @g[a].to << b @g[b].to << a end def jewel(v, root, from) cost = 0 @g[v].to.each do |i| next if i == from cost += jewel(i, root, v) end return cost if v == root return cost + @h[v] if cost == 0 return cost + 1 end puts jewel(x, x, -1) * 2
Submission Info
Submission Time | |
---|---|
Task | B - ツリーグラフ |
User | wtnk0812 |
Language | Ruby (2.3.3) |
Score | 100 |
Code Size | 493 Byte |
Status | AC |
Exec Time | 8 ms |
Memory | 1916 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 100 / 100 | ||||
Status |
|
|
Set Name | Test Cases |
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Sample | subtask0_sample_01.txt, subtask0_sample_02.txt |
All | subtask0_sample_01.txt, subtask0_sample_02.txt, subtask1_line01.txt, subtask1_line02.txt, subtask1_line03.txt, subtask1_line04.txt, subtask1_line05.txt, subtask1_line06.txt, subtask1_random01.txt, subtask1_random02.txt, subtask1_random03.txt, subtask1_random04.txt, subtask1_random05.txt, subtask1_random06.txt, subtask1_random07.txt, subtask1_random08.txt, subtask1_special01.txt, subtask1_special02.txt, subtask1_special03.txt, subtask1_special04.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
subtask0_sample_01.txt | AC | 7 ms | 1788 KB |
subtask0_sample_02.txt | AC | 7 ms | 1788 KB |
subtask1_line01.txt | AC | 7 ms | 1788 KB |
subtask1_line02.txt | AC | 8 ms | 1916 KB |
subtask1_line03.txt | AC | 7 ms | 1916 KB |
subtask1_line04.txt | AC | 8 ms | 1916 KB |
subtask1_line05.txt | AC | 8 ms | 1916 KB |
subtask1_line06.txt | AC | 8 ms | 1916 KB |
subtask1_random01.txt | AC | 8 ms | 1788 KB |
subtask1_random02.txt | AC | 7 ms | 1788 KB |
subtask1_random03.txt | AC | 7 ms | 1788 KB |
subtask1_random04.txt | AC | 8 ms | 1788 KB |
subtask1_random05.txt | AC | 7 ms | 1788 KB |
subtask1_random06.txt | AC | 8 ms | 1788 KB |
subtask1_random07.txt | AC | 8 ms | 1788 KB |
subtask1_random08.txt | AC | 8 ms | 1788 KB |
subtask1_special01.txt | AC | 7 ms | 1788 KB |
subtask1_special02.txt | AC | 7 ms | 1788 KB |
subtask1_special03.txt | AC | 7 ms | 1788 KB |
subtask1_special04.txt | AC | 7 ms | 1788 KB |