3433. 统计用户被提及情况
今天试了下deepseek，我把题目内容、数据范围、方法名、参数全量喂给了deepseek。deepseek没能做对，这是deepseek的解。

def count_mentions(number_of_users, events)
  # 初始化用户的提及次数和在线状态
  mentions = Array.new(number_of_users, 0)
  online_status = Array.new(number_of_users, true)
  offline_events = []

  # 按时间戳排序事件
  events.sort_by! { |event| event[1].to_i }

  events.each do |event|
    type, timestamp, data = event
    timestamp = timestamp.to_i

    # 处理离线事件
    if type == "OFFLINE"
      user_id = data.to_i
      online_status[user_id] = false
      offline_events << [timestamp + 60, user_id]
    else
      # 处理消息事件
      # 首先处理所有在当前时间戳之前的离线事件
      while !offline_events.empty? && offline_events.first[0] <= timestamp
        _, user_id = offline_events.shift
        online_status[user_id] = true
      end

      # 解析提及字符串
      if data == "ALL"
        # 提及所有用户
        number_of_users.times { |i| mentions[i] += 1 }
      elsif data == "HERE"
        # 提及所有在线用户
        number_of_users.times { |i| mentions[i] += 1 if online_status[i] }
      else
        # 提及特定的用户
        data.split.each do |mention|
          if mention.start_with?("id")
            user_id = mention[2..-1].to_i
            mentions[user_id] += 1
          end
        end
      end
    end
  end

  mentions
end

我只好自己做了，然后就过了，这是我的解。

# @param {Integer} number_of_users
# @param {String[][]} events
# @return {Integer[]}
def count_mentions(number_of_users, events)
  h2 = (0...number_of_users).to_h { |i| ["id" + i.to_s, true] }
  h3 = (0...number_of_users).to_h { |i| ["id" + i.to_s, [0, 0]] }
  events.sort! do |a, b|
    if a[1].to_i != b[1].to_i
      a[1].to_i - b[1].to_i
    elsif a[1].to_i == b[1].to_i
      b[0][0].ord - a[0][0].ord
    end
  end
  events.each do |e|
    if e[0] == "MESSAGE"
      if e[2] == "ALL"
        h3.each_pair do |k, v|
          v[0] += 1
          unless h2[k]
            if e[1].to_i - v[1] >= 60
              v[1] = e[1].to_i
              h2[k] = true
            end
          else
            v[1] = e[1].to_i
          end
        end
      elsif e[2] == "HERE"
        h3.each_pair do |k, v|
          if h2[k]
            v[0] += 1
            v[1] = e[1].to_i
          else
            if e[1].to_i - v[1] >= 60
              h2[k] = true
              v[1] = e[1].to_i
              v[0] += 1
            end
          end
        end
      else
        t = e[2].split(" ")
        t1 = Hash.new(0)
        t.each do |t2|
          t1[t2] += 1
        end
        h3.each_pair do |k, v|
          if t1.has_key?(k)
            v[0] += t1[k]
          end
        end
        h3.each_pair do |k, v|
          if h2[k]
            v[1] = e[1].to_i
          else
            if e[1].to_i - v[1] >= 60
              h2[k] = true
              v[1] = e[1].to_i
            end
          end
        end
      end
    elsif e[0] == "OFFLINE"
      h2["id" + e[2]] = false
      h3["id" + e[2]][1] = e[1].to_i
      h3.each_pair do |k, v|
        if h2[k]
          v[1] = e[1].to_i
        else
          if e[1].to_i - v[1] >= 60
            h2[k] = true
            v[1] = e[1].to_i
          end
        end
      end
    end
  end
  h3.values.map { |it| it[0] }
end