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当我运行这个程序时，出现“围绕变量'numGrades'的运行时检查失败#2堆栈已损坏”。最低等级也不会输出正确答案。任何帮助将不胜感激！

#include <iostream> // cin, cout

using namespace std;

const int TEN_GRADES = 10;   // pre-defined number of grades

int main()
{
    int numGrades[10];
    double avg, highest = numGrades[0], lowest = numGrades[0], less, greater, grades;
    double sum = 0;

    // greeting message
    cout << "---------------------------------" << endl
         << "  Sandro's Statistics Generator  " << endl
         << "---------------------------------" << endl << endl;

    // requesting number of grades 
    cout << "Hello Professor, how many grades do I need to analyse this time? ";
    cin >> numGrades[10];

    if (numGrades[1] == 0)
    {
        cout << "\nGuess you changed your mind!!!" << endl
             << "Ending program now..." << endl << endl;
        return 0;
    }

    // if user doesn't enter 0 user is ready to begin
    cout << "Okay, I am ready. Start..." << endl;
    for (int count = 0; count < numGrades[10]; count++)
    {
        cin >> numGrades[count];
        sum += numGrades[10];
    }

    // to get the average
    avg = sum / TEN_GRADES;

    // to get the highest and lowest mark

    for (int count = 0; count < TEN_GRADES; count++)
    {
        if (numGrades[count] > highest)
            highest = numGrades[count];
    }

    for (int count = 0; count < TEN_GRADES; count++)
    {
        if (numGrades[count] < lowest)
            lowest = numGrades[count];
    }

    // output requested statistics
    cout << "Here are the requested stats for the " << numGrades << " grades."     << endl
         << "The class average is " << avg << endl
         << "The highest grade is " << highest << endl
         << "The lowest grade is " << lowest << endl;

    return 0;

}

4

1 回答 1

0

哦，天哪，我什至不会做 c++，但我觉得我的一只眼睛有点流血了。

请查看（或告诉编写此代码的人查看）如何为它们创建和分配值。

然后查看简单的数据结构（如数组）和循环。

开始的一种好方法是分析程序的以下 WORKING 代码：

如果有帮助，请标记为正确，如果您有任何问题......干杯！

#include <iostream>
#include <string>

using namespace std;

const int TEN_GRADES = 10;   // pre-defined number of grades

int main()
{
int numGrades[10];
double avg, highest = 0, lowest = 0, less, greater, grades;
double sum = 0;

// greeting message
cout << "---------------------------------" << endl
     << "  Newbie Statistics Generator  " << endl
     << "---------------------------------" << endl << endl;

// requesting number of grades 
cout << "Hello Professor, please enter 10 grades: "<<endl;

//THIS PART: loops ten times to input the grades
for (int count = 0; count < TEN_GRADES; count ++)
{
    cout << "Grade number "<<count<<":";
    cin >> numGrades[count];

}

//I get what you want to do here, but consider adding another exit condition here, what if the second grade is really 0 ?
if (numGrades[1] == 0)
{
    cout << "\nGuess you changed your mind!!!" << endl
         << "Ending program now..." << endl << endl;
    return 0;
}

// if user doesn't enter 0 user is ready to begin
cout << "Okay, I am ready. Start..." << endl;
for (int count = 0; count < TEN_GRADES; count++)
{
    sum += numGrades[count];
}

// to get the average
avg = sum / TEN_GRADES;

// to get the highest and lowest mark
for (int count = 0; count < TEN_GRADES; count++)
{
    if (numGrades[count] > highest)
        highest = numGrades[count];
}

for (int count = 0; count < TEN_GRADES; count++)
{
    if (numGrades[count] < lowest)
        lowest = numGrades[count];
}
// output requested statistics
cout << "Here are the requested stats for the " << TEN_GRADES << " grades."     << endl
     << "The class average is " << avg << endl
     << "The highest grade is " << highest << endl
     << "The lowest grade is " << lowest << endl;

return 0;
}
于 2016-11-14T01:00:20.467 回答