C++ 循环混乱

如果我想再次运行代码，我的代码似乎会询问两次而不是一次。我只想让它像我的其他案例一样正常运行，在我查看活动后只询问一次，这两个活动是唯一有问题的。这里似乎有什么问题：

case 5:
cout<<"Here are the list of activities in Activity 5:" << endl;
cout<<"[5.1]Determining a Number within the Array" << endl;
cout<<"[5.2]Determining the Highest and Lowest integer" << endl;
cout<<"[5.3]Reversed Array" << endl;
cin >> choice;
system("CLS");

        if(choice == 5.1){
            counter +=1;
            int nos[10];
            int det;
            cout <<"Note: Do not input any decimal numbers." << endl;
                for(int array = 1; array < 11; array++){

                    cout << "Input integers 1-10 only. [" << array << "]";
                    cin >> nos[det];
                                        }
                    cout << "Type in 1 integer value only.[" << det << "]";
                    cin >> det; 

                    if(det >= nos[1] || det <= nos[10]){
                        cout << "The value is within the scope of the array.";
                                        }
                    else{
                        cout << "The value is not within the scope of the array.";
                                        }
        system ("PAUSE");
        system ("CLS");
            cout << "Do you want to run the program again? (y/n)" << endl;
            cin >> choose;
                        }

        else if(choice == 5.2){
            counter +=1;
        cout <<"Note: Do not input any decimal numbers." << endl;
        cout <<"Enter your integers." << endl;
        int nos[10];
        int put;
                for(int rep = 1; rep < 11; rep++){

                    cout <<"[" << rep << "]";
                    cin >> nos[rep];
                            }
                        int highnos = nos[1];
                        int lownos = nos[1];

                for(int rep = 1; rep < 11; rep++){
                if(nos[rep] > highnos){
                    highnos = nos[rep];
                                                    }           
                            }                           
                    cout << "Your highest integer is:" << highnos << endl;

                for(int rep = 1; rep > 11; rep++){
                if(nos[rep] < lownos){
                lownos = nos[rep];
                                    }
                                                }
        cout <<"Your lowest integer is:"<< lownos << endl;
            system ("PAUSE");
            system ("CLS");
            cout << "Do you want to run the program again? (y/n)" << endl;
            cin >> choose;

                                }

案例5：
cout首先，您还没有初始化任何内容，所以所有内容都是垃圾值。
首先初始化det，如果要输入整个数组，则运行循环。cin>>nos[det]根据您的代码，在垃圾索引处只输入一个值

这段代码乱七八糟。请修复初始化和输入，然后共享您获得的输出与您想要的输出。
将此代码复制到新项目中，并将其转换为新项目的
main
调用的函数。这将使您在搜索bug时更容易进行实验，并使您更接近于在发布帖子时所需的元素。声明为
int-nos[10]
的数组有十个元素，索引为0到9<代码>编号[10]

通过访问超出范围的索引，显示未定义的行为。此外，在初始化

det

之前使用

nos[det]

，这是未定义行为的另一个实例。