#include<iostream>

using namespace std;

#define QUESTION_MAX (100) // 最多100道题

static QustionItem_t Qustion[QUESTION_MAX];

static int JudgeMethod = 0;
static int ScoreMethod = 0;

int main()
{
	int num = 0; //题目总数
	float perTotalScore = 0; //每题分数
	float totalScore = 0; //最后得分

	QustionItem_t *Paper = Question; //为每道题占的内存申请空间

	int* pJudgeMethod = &JudgeMethod;
	int* pScoreMethod = &ScoreMethod;


	int i = 0; //??

	num = GetQuestionNum();//得到题目总数
	GetPaperAndAnswer(Paper);
	GetMehod(pJudgeMethod, pScoreMethod);

	for (int i = 0; i < num; i++) {
		GetPerQuestionScore(i, num, Paper, pScoreMethod, &perTotalScore);
		CheckOneQuestion(i, Paper, &perTotalScore, pJudgeMethod, &totalScore);
	}
	OutPutResult(score);
	return 0;
}

void CheckOneQuestion(int i, QuestionItem_t *Paper, 
	float *perTotalScore, int *pJudgeMethod, float *totalScore)
{
	int choiceNum = 0;
	int ansNum = 0;
	int rightNum = 0;
	//该题正确答案字符数
	for (int j = 0; j < 10; j++) {
		if ('\0' != Paper[i].Answer[j]) {
			ansNum++;
		} else {
			break;
		}
	}
	//考生选定选项字符数
	for (int j = 0; j < 10; j++) {
		if ('\0' != Paper[i].Choice[j]) {
			choiceNum++;
		} else {
			break;
		}
	}

	//得到当前题目考生选项中正确的个数
	for (int j = 0; j < choiceNum; j++) {
		for (int k = 0; k < ansNum; k++) {
			if (Paper[i].Answer[k] == Paper[i].Choice[j]) {
				//正确数+1
				rightNum++;
			}
			else {
				rightNum += 0; //?
			}
		}
	}
	
	if (1 == *pJudgeMethod) {
		//答案全正确加分
		//多选少选都不得分
		if (choiceNum == ansNum && ansNum == rightNum) {
			*totalScore += *perTotalScore;
		}
		else {
			*totalScore += 0; //??
		}
	}
	else if (2 == *pJudgeMethod) {
		//多选不得分
		if(choiceNum > ansNum){
			*totalScore += 0;
		}
		//选项正确得分
		else if (choiceNum == ansNum && rightNum == ansNum) {
			*totalScore += *perTotalScore;
		}
		//其他得部分分数
		else {
			*totalScore += *perTotalScore * rightNum / ansNum;
		}
	}
	else if (3 == *pJudgeMethod) {
		int wrongNum = choiceNum - rightNum;
		//全部正确得本题满分
		if (choiceNum == ansNum && rightNum == ansNum) {
			*totalScore += *perTotalScore;
		}
		//少选按正确数给分
		else if (choiceNum < ansNum) {
			*totalScore += *perTotalScore * rightNum / ansNum;
		}
		//多选则扣除错误数分数再加上正确分数
		else {
			float score = *perTotalScore -  (*perTotalScore * wrongNum / ansNum);
			score += *perTotalScore * rightNum / ansNum;
			*totalScore += score < 0 ? 0 : score;
		}
	}
}

int GetPerQuestionScore(int i,
	int num, QuestionItem_t* Paper, int* pScoreMethod,
	float* perTotalScore)
{
	if (1 == *pScoreMethod) {
		*perTotalScore = 100.0f / num;
	}else if (2 == *pScoreMethod) {
		*perTotalScore = getScoreMethod2(i, Paper, num);
	}else if(3 == *pScoreMethod) {
		*perTotalScore = Paper[i].Score;
	}
}

//当分配方式为第二种时，获得该题号总分
float getScoreMethod2(int i, QuestionItem_t* Paper, int num)
{
	int allAnsNum = 0;
	int currentAnsNum = 0;
	//获得所有题答案选项数
	for (int j = 0; j < num; j++) {
		for (int k = 0; k < 10; k++) {
			if ('\0' != Paper[j].Answer[k]) {
				allAnsNum++;
			}
			else {
				break;
			}
		}
	}
	//获得当前题目答案选项数
	for (int j = 0; j < 10; j++) {
		if('\0' != Paper[i].Answer[j]) {
			currentAnsNum++;
		}else {
			break;
		}
	}
	return 100.0f * currentAnsNum / allAnsNum;
}