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#ifndef QUESTION_GENERATOR_H_
#define QUESTION_GENERATOR_H_
#include <string>
#include <vector>
#include <random>
class QuestionGenerator {
public:
virtual ~QuestionGenerator() = default;
// 生成指定数量的数学题目
virtual std::vector<std::string> GenerateQuestions(int count,
const std::string& username) = 0;
// 检查题目是否符合难度要求
virtual bool MeetsDifficultyRequirements(const std::string& question) = 0;
protected:
QuestionGenerator();
// 生成指定范围内的随机数
int GetRandomNumber(int min, int max);
// 从运算符列表中随机选择一个运算符
char GetRandomOperator(const std::vector<char>& operators);
std::string current_user_;
std::mt19937 rng_;
private:
// 禁用拷贝构造和赋值操作
QuestionGenerator(const QuestionGenerator&) = delete;
QuestionGenerator& operator=(const QuestionGenerator&) = delete;
};
#endif // QUESTION_GENERATOR_H_