我無法按照規范完成作業 . 這是分配方案：

大學迫切需要一個自動測試評分系統 . 使用C，為大學寫一個評分系統，并對至少五名學生的測試進行評分 . 要創建評分系統，請按照以下步驟操作：首先詢問測試中的問題數量然后詢問每個問題的正確答案 . 請注意，多項選擇測試和問題將從A到D得到答案 . 詢問學生人數并通過詢問他們的姓名來處理每個學生，然后循環詢問學生的答案 . 為每個問題打分 . 在最后一個問題計算出學生得分后，顯示“學生'插入學生姓名'得分為20分中的10分或50％ . ”重復，直到所有學生都得分 . 在對所有學生進行評分后，以與以前相同的方式插入打印所有學生成績的 class 列表 .

這是我到目前為止：

#include "stdafx.h"

#include

#include

#include

#include

using namespace std;

int _tmain(int argc, _TCHAR* argv[])

{

//declare variables

char choice;

string studentName;

vector answers;

vector names;

int getStudents();

int getQuestions();

//calls function to get number of questions

float questions = getQuestions();

//Get answers

for (int i = 0; i < questions; ++i) {

cout << "What is the answer for question " << i + 1 << endl;

cin >> choice;

answers.push_back(choice);

}

//Get number of students

int students = getStudents();

//Get student names

for (int i = 0; i < students; i++) {

cout << "Student " << i + 1 << ", what is your name?" << endl;

cin >> studentName;

names.push_back(studentName);

}

float score = 0;

char studentAnswer;

vector userAnswer;

vector finalScore;

//gets student answers

for (int i = 0; i < students; i++) {

for (int j = 0; j < questions; j++) {

cout << names[i] << ", what is your answer for question " << j + 1 << "?" << endl;

cin >> studentAnswer;

userAnswer.push_back(studentAnswer);

}

}

//calculates student scores

for (int i = 0; i < students; i++) {

for (int j = 0; j < questions; j++) {

if (userAnswer[j] == answers[j])

score = score + 1;

}

finalScore.push_back(score);

}

//outputs scores

for (int i = 0; i < students; i++) {

cout << names[i] << " scored " << finalScore[i] << " out of " << questions <<

" or " << (finalScore[i] / questions) * 100 << "%" << endl;

}

system("pause");

return 0;

}

//function to get number of questions

int getQuestions()

{

int questions;

cout << "How many questions are there?" << endl;

cin >> questions;

return questions;

}

//function to get number of students

int getStudents()

{

int students;

cout << "How many students are there?" << endl;

cin >> students;

return students;

}

最終得分返回的值不準確，我找不到錯誤發生的位置 .

同樣，為了在最后一步中進行排序，我被要求按升序或字母順序按降序和名稱排序 . 我能夠相互獨立地排序這些，但不知道如何將它們組合起來并按照這種方式對它們進行排序 .