結果
問題 | No.812 Change of Class |
ユーザー | te-sh |
提出日時 | 2021-07-10 13:34:58 |
言語 | Crystal (1.11.2) |
結果 |
AC
|
実行時間 | 264 ms / 4,000 ms |
コード長 | 6,110 bytes |
コンパイル時間 | 23,428 ms |
コンパイル使用メモリ | 262,620 KB |
実行使用メモリ | 25,280 KB |
最終ジャッジ日時 | 2023-09-14 19:00:39 |
合計ジャッジ時間 | 33,766 ms |
ジャッジサーバーID (参考情報) |
judge12 / judge13 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 81 ms
18,132 KB |
testcase_01 | AC | 14 ms
6,760 KB |
testcase_02 | AC | 44 ms
11,908 KB |
testcase_03 | AC | 94 ms
15,904 KB |
testcase_04 | AC | 84 ms
18,424 KB |
testcase_05 | AC | 242 ms
18,756 KB |
testcase_06 | AC | 191 ms
16,148 KB |
testcase_07 | AC | 9 ms
8,836 KB |
testcase_08 | AC | 5 ms
5,780 KB |
testcase_09 | AC | 234 ms
20,508 KB |
testcase_10 | AC | 245 ms
20,664 KB |
testcase_11 | AC | 26 ms
16,720 KB |
testcase_12 | AC | 152 ms
20,376 KB |
testcase_13 | AC | 3 ms
4,380 KB |
testcase_14 | AC | 2 ms
4,376 KB |
testcase_15 | AC | 146 ms
16,788 KB |
testcase_16 | AC | 11 ms
6,068 KB |
testcase_17 | AC | 136 ms
17,400 KB |
testcase_18 | AC | 102 ms
13,424 KB |
testcase_19 | AC | 115 ms
15,268 KB |
testcase_20 | AC | 264 ms
20,276 KB |
testcase_21 | AC | 95 ms
14,744 KB |
testcase_22 | AC | 44 ms
8,936 KB |
testcase_23 | AC | 10 ms
5,808 KB |
testcase_24 | AC | 13 ms
6,268 KB |
testcase_25 | AC | 35 ms
8,904 KB |
testcase_26 | AC | 190 ms
18,800 KB |
testcase_27 | AC | 162 ms
17,448 KB |
testcase_28 | AC | 114 ms
16,148 KB |
testcase_29 | AC | 27 ms
7,604 KB |
testcase_30 | AC | 148 ms
17,248 KB |
testcase_31 | AC | 125 ms
15,824 KB |
testcase_32 | AC | 56 ms
11,080 KB |
testcase_33 | AC | 161 ms
18,264 KB |
testcase_34 | AC | 11 ms
6,260 KB |
testcase_35 | AC | 29 ms
7,752 KB |
testcase_36 | AC | 13 ms
6,256 KB |
testcase_37 | AC | 72 ms
11,320 KB |
testcase_38 | AC | 12 ms
9,996 KB |
testcase_39 | AC | 72 ms
11,288 KB |
testcase_40 | AC | 18 ms
6,964 KB |
testcase_41 | AC | 10 ms
8,512 KB |
testcase_42 | AC | 167 ms
16,888 KB |
testcase_43 | AC | 37 ms
13,084 KB |
testcase_44 | AC | 112 ms
12,000 KB |
testcase_45 | AC | 13 ms
6,184 KB |
testcase_46 | AC | 36 ms
12,868 KB |
testcase_47 | AC | 109 ms
12,128 KB |
testcase_48 | AC | 126 ms
13,472 KB |
testcase_49 | AC | 30 ms
7,868 KB |
testcase_50 | AC | 4 ms
4,868 KB |
testcase_51 | AC | 32 ms
9,096 KB |
testcase_52 | AC | 72 ms
13,072 KB |
testcase_53 | AC | 21 ms
6,940 KB |
testcase_54 | AC | 17 ms
6,628 KB |
testcase_55 | AC | 71 ms
16,988 KB |
testcase_56 | AC | 89 ms
22,972 KB |
testcase_57 | AC | 91 ms
23,476 KB |
testcase_58 | AC | 47 ms
14,152 KB |
testcase_59 | AC | 106 ms
25,280 KB |
testcase_60 | AC | 3 ms
4,400 KB |
testcase_61 | AC | 2 ms
4,380 KB |
testcase_62 | AC | 2 ms
4,376 KB |
ソースコード
def solve(io) n, m = io.get2 g = Graph.new(n) m.times do pi, qi = io.get2; pi -= 1; qi -= 1 g.add_edge_b(pi, qi) end q = io.get q.times do ai = io.get; ai -= 1 d = Array.new(n, 0) s, m = 0, 0 g.bfs(ai) do |u, p| d[u] = d[p] + 1 if p != -1 s += 1 max_u(m, d[u]) end x = 0 while m > 1 m = m.cdiv(2) x += 1 end io.put s-1, x end end struct Int def cdiv(b : Int) (self + b - 1) // b end def bit?(i : Int) bit(i) == 1 end def set_bit(i : Int) self | (self.class.new(1) << i) end def reset_bit(i : Int) self & ~(self.class.new(1) << i) end {% if compare_versions(env("CRYSTAL_VERSION") || "0.0.0", "0.34.0") < 0 %} def bit_length : Int32 x = self < 0 ? ~self : self if x.is_a?(Int::Primitive) Int32.new(sizeof(self) * 8 - x.leading_zeros_count) else to_s(2).size end end {% end %} end struct Int32 SQRT_MAX = 46_340_i32 def isqrt m = SQRT_MAX r = (1_i32..SQRT_MAX).bsearch { |i| i**2 > self } r.nil? ? SQRT_MAX : r - 1 end end struct Int64 SQRT_MAX = 3_037_000_499_i64 def isqrt r = (1_i64..SQRT_MAX).bsearch { |i| i**2 > self } r.nil? ? SQRT_MAX : r - 1 end end struct Number {% if compare_versions(env("CRYSTAL_VERSION") || "0.0.0", "1.1.0") < 0 %} def zero? self == 0 end def positive? self > 0 end def negative? self < 0 end {% end %} {% if compare_versions(env("CRYSTAL_VERSION") || "0.0.0", "0.36.0") < 0 %} def self.additive_identity zero end def self.multiplicative_identity new(1) end {% end %} end class Array macro new_md(*args, &block) {% if !block %} {% for arg, i in args[0...-2] %} Array.new({{arg}}) { {% end %} Array.new({{args[-2]}}, {{args[-1]}}) {% for arg in args[0...-2] %} } {% end %} {% else %} {% for arg, i in args %} Array.new({{arg}}) { |_i{{i}}| {% end %} {% for block_arg, i in block.args %} {{block_arg}} = _i{{i}} {% end %} {{block.body}} {% for arg in args %} } {% end %} {% end %} end end class ProconIO def initialize(@ins : IO = STDIN, @outs : IO = STDOUT) @buf = [] of String @index = 0 end def get(k : T.class = Int32) forall T get_v(k) end macro define_get {% for i in (2..9) %} def get( {% for j in (1..i) %} k{{j}}{% if j < i %},{% end %} {% end %} ) { {% for j in (1..i) %} get(k{{j}}){% if j < i %},{% end %} {% end %} } end {% end %} end define_get macro define_getn {% for i in (2..9) %} def get{{i}}(k : T.class = Int32) forall T get( {% for j in (1..i) %} k{% if j < i %}, {% end %} {% end %} ) end {% end %} end define_getn def get_a(n : Int, k : T.class = Int32) forall T Array.new(n) { get_v(k) } end def get_c(n : Int, k : T.class = Int32) forall T get_a(n, k) end macro define_get_c {% for i in (2..9) %} def get_c( n : Int, {% for j in (1..i) %} k{{j}}{% if j < i %},{% end %} {% end %} ) a = Array.new(n) do get( {% for j in (1..i) %} k{{j}}{% if j < i %},{% end %} {% end %} ) end { {% for j in (1..i) %} a.map { |e| e[{{j-1}}] }{% if j < i %},{% end %} {% end %} } end {% end %} end define_get_c macro define_getn_c {% for i in (2..9) %} def get{{i}}_c(n : Int, k : T.class = Int32) forall T get_c( n, {% for j in (1..i) %} k{% if j < i %}, {% end %} {% end %} ) end {% end %} end define_getn_c def get_m(r : Int, c : Int, k : T.class = Int32) forall T Array.new(r) { get_a(c, k) } end def put(*vs) vs.each.with_index do |v, i| put_v(v) @outs.print i < vs.size - 1 ? " " : "\n" end end def put_e(*vs) put(*vs) exit end private def get_v(k : Int32.class); get_token.to_i32; end private def get_v(k : Int64.class); get_token.to_i64; end private def get_v(k : String.class); get_token; end private def get_token if @buf.size == @index str = @ins.read_line @buf = str.split @index = 0 end v = @buf[@index] @index += 1 v end private def put_v(vs : Enumerable) vs.each_with_index do |v, i| @outs.print v @outs.print " " if i < vs.size - 1 end end private def put_v(v) @outs.print v end end macro min_u(a, b) {{a}} = Math.min({{a}}, {{b}}) end macro max_u(a, b) {{a}} = Math.max({{a}}, {{b}}) end require "bit_array" class Graph alias Node = Int32 def initialize(@size : Node) @g = Array(Array(Node)).new(@size) { [] of Node } end getter size : Int32 delegate :[], to: @g def add_edge(u : Node, v : Node) @g[u] << v end def add_edge_b(u : Node, v : Node) @g[u] << v @g[v] << u end def bfs(u : Node) b = BitArray.new(@size) yield u, -1 b[u] = true q = Deque.new([u]) until q.empty? v = q.shift @g[v].each do |w| next if b[w] yield w, v b[w] = true q.push(w) end end end end class GraphW(T) alias Node = Int32 struct Edge(T) def initialize(@src : Node, @dst : Node, @wt : T) end getter src : Node, dst : Node getter wt : T end def initialize(@size : Node, @inf = 10**9) @g = Array(Array(Edge(T))).new(@size) { [] of Edge(T) } end getter size : Int32 getter inf : T delegate :[], to: @g def add_edge(u : Node, v : Node, wt : T) @g[u] << Edge.new(u, v, wt) end def add_edge_b(u : Node, v : Node, wt : T) @g[u] << Edge.new(u, v, wt) @g[v] << Edge.new(v, u, wt) end end solve(ProconIO.new)