Question

我一直在努力为我在学校的实验室制作一个主谋程序，从1到6个随机数。我运行了我的代码来查找此错误：

Debug Assertion失败！

程序：C：\ windows \ SYSTEM32 \ MSVCP140D.dll文件：c：\ program files   （x86）\ microsoft visual studio   14.0 \ vc \ include \ vector Line：1232

表达式：向量下标超出范围

有关程序如何导致断言的更多信息   失败，请参阅关于断言的Visual C ++文档。

（按“重试”调试应用程序）

我已尝试重试，但它打开了另一个对话框，说调试到达了一个断点，此时我无法继续调试。这是我感兴趣的代码（Microsoft Visual Studio编译器）：

#include <iostream>
#include <vector> 
#include <cstdlib>
#include <ctime>

using namespace std;

void getRandoms(vector<int> &random);
void getGuesses(vector<int> &guess);
void checkGuesses(const vector<int> &random, const vector<int> guess);

int main()
{
    srand(time(0));
    vector<int> random(4, 0);
    vector<int> guess(4, 0);
    getRandoms(random);

    cout << "Welcome to Mastermind" << endl << endl;

    getGuesses(guess);
    checkGuesses(random, guess);

    system("pause");

    return 0;
}

void getRandoms(vector<int> &random)
{
    for (int i = 0; i < 4; i++)
    {
        random[i] = (rand() % 6) + 1;
    }
    cout << "answer key: " << random[1] << " " << random[2] << " " << random[3] << " " << random[4] << endl;
}
void getGuesses(vector<int> &guess)
{
    cout << "Please enter your four numerical guesses (space separated): ";
    for (int j = 0; j < 4; j++)
        cin >> guess[j];
    cout << endl << endl;
}
void checkGuesses(const vector<int> &random, const vector<int> guess)
{
    int clocat = 0;
    int cnumb = 0;
    for (int i = 0; i < 4; i++)
    {
        for (int j = 0; j < 4; j++)
        {
            if (i == j && random[i] == guess[j])
                clocat = clocat + 1;
            else if (i != j && random[i] == guess[j])
                cnumb = cnumb + 1;
        }
    }
    if (clocat == 4)
        cout << "Correct!" << endl << endl << "You are a MasterMind!";
    else
        cout << "You have " << cnumb << " correct number(s) and " << clocat << " correct location(s)." << endl << endl;
}

我怀疑这是我错误使用矢量的错误，但我无法查明错误。谢谢你的帮助！

Answer 1

向量索引从0开始，而不是1

void getRandoms(vector<int> &random)
{
    for (int i = 0; i < 4; i++)
    {
        random[i] = (rand() % 6) + 1;
    }
    cout << "answer key: " << random[0] << " " << random[1] << " " << random[2] << " " << random[3] << endl;
}

Answer 2

cout << "answer key: " << random[1] << " " << random[2] << " " << random[3] << " " << random[4] << endl;

以上行是导致错误的原因。

如果您尝试访问代码中的 4th 索引，则会导致分段错误。

在向量使用中找不到致命错误

2 个答案:

向量索引从0开始，而不是1