C++ 嵌套循环没有给我任何值

Question

所以这个嵌套循环应该为每个练习生成 10 个练习的随机分数用户输入的学生。生成分数后，必须将它们全部加起来并找到平均分数。但是，当我运行该程序时，它没有给我任何值。这是代码:

int progExAvg, progExScore, studentAmt;
int counter = 0;
int progExTotal = 0;

srand(time(0));

cout << "Please enter how many students do you have in your class: ";
cin >> studentAmt;
cin.sync();

while (counter < studentAmt)
{
    for(int i = 0; i < 10; i++)
    {
        progExScore = rand() % 100 + 1;
        progExTotal = progExTotal + progExScore;
    }

    progExAvg = progExTotal / 10;



}
cout << progExAvg << endl;
return 0;

Answer 1

你永远不会增加counter，所以它总是小于studentAmt

while (counter < studentAmt)
{
    for(int i = 0; i < 10; i++)
    {
        progExScore = rand() % 100 + 1;
        progExTotal = progExTotal + progExScore;
    }

    progExAvg = progExTotal / 10;

    counter++;

}