#336251 (Lua) No.488 四角関係

• 問題: No.488 四角関係
• ユーザー: 👑 obakyan
• 提出日時: 2019-04-08 11:28:07
• 言語: Lua (LuaJit 2.1.1696795921)
• 結果: AC
• 実行時間: 167 ms / 5,000 ms
• コード長: 874 bytes
• コンパイル時間: 89 ms
• コンパイル使用メモリ: 5,376 KB
• 実行使用メモリ: 5,376 KB
• 最終ジャッジ日時: 2024-07-01 22:50:23
• 合計ジャッジ時間: 1,409 ms
• ジャッジサーバーID （参考情報）: judge1 / judge3

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	5 ms; 5,248 KB
testcase_01	AC	46 ms; 5,376 KB
testcase_02	AC	16 ms; 5,376 KB
testcase_03	AC	16 ms; 5,376 KB
testcase_04	AC	19 ms; 5,376 KB
testcase_05	AC	46 ms; 5,376 KB
testcase_06	AC	6 ms; 5,376 KB
testcase_07	AC	167 ms; 5,376 KB
testcase_08	AC	5 ms; 5,376 KB
testcase_09	AC	2 ms; 5,376 KB
testcase_10	AC	9 ms; 5,376 KB
testcase_11	AC	3 ms; 5,376 KB
testcase_12	AC	20 ms; 5,376 KB
testcase_13	AC	7 ms; 5,376 KB
testcase_14	AC	4 ms; 5,376 KB
testcase_15	AC	2 ms; 5,376 KB
testcase_16	AC	2 ms; 5,376 KB
testcase_17	AC	2 ms; 5,376 KB
testcase_18	AC	1 ms; 5,376 KB
testcase_19	AC	2 ms; 5,376 KB
testcase_20	AC	2 ms; 5,376 KB
testcase_21	AC	1 ms; 5,376 KB
testcase_22	AC	2 ms; 5,376 KB
testcase_23	AC	2 ms; 5,376 KB
testcase_24	AC	2 ms; 5,376 KB

ソースコード

tall = {}

function check(i1, i2, i3, i4)
  if(tall[i1][i2] and tall[i1][i3] and tall[i2][i4] and tall[i3][i4] and (tall[i1][i4] == nil and tall[i2][i3] == nil)) then
    return true
  elseif(tall[i1][i3] and tall[i1][i4] and tall[i2][i3] and tall[i2][i4] and (tall[i1][i2] == nil and tall[i3][i4] == nil)) then
    return true
  elseif(tall[i1][i2] and tall[i1][i4] and tall[i2][i3] and tall[i3][i4] and (tall[i1][i3] == nil and tall[i2][i4] == nil)) then
    return true
  end
  return false
end

n, m = io.read("*n", "*n")
for i = 1, n do
  tall[i] = {}
end
for i = 1, m do
  a, b = io.read("*n", "*n")
  a, b = a + 1, b + 1
  tall[a][b] = true
end
cnt = 0
for i_a = 1, n - 3 do
  for i_b = i_a + 1, n - 2 do
    for i_c = i_b + 1, n - 1 do
      for i_d = i_c + 1, n do
        if(check(i_a, i_b, i_c, i_d)) then cnt = cnt + 1 end
      end
    end
  end
end
print(cnt)