实验六

#include <iostream>
#include "Vector.hpp"
using namespace std;

template<typename T>
void output(const Vector<T>& v){
    for(auto i=0;i<v.get_size();i++){
        cout << v.at(i) << ", ";


    }
    cout << "\b\b \n";
}

void test() {
using namespace std;
int n;
cin >> n;
Vector<double> x1(n);
for(auto i = 0; i < n; ++i)
x1.at(i) = i * 0.7;
output(x1);
Vector<int> x2(n, 42);
Vector<int> x3(x2);
output(x2);
output(x3);
x2.at(0) = 77;
output(x2);
x3[0] = 999;
output(x3);
}
int main() {
test();
}

#include <iostream>
#include <stdexcept>
#include <ostream>

template <typename T>
class Vector {
public:
    Vector() : data(nullptr), size(0) {}

    explicit Vector(int size) : data(new T[size]), size(size) {}

    Vector(int size, const T& value) : data(new T[size]), size(size) {
        for (int i = 0; i < size; ++i) {
            data[i] = value;
        }
    }

    Vector(const Vector<T>& other) : data(new T[other.size]), size(other.size) {
        for (int i = 0; i < size; ++i) {
            data[i] = other.data[i];
        }
    }

    ~Vector() {
        delete[] data;
    }

    int get_size() const {
        return size;
    }

    T& at(int index) {
        if (index < 0 || index >= size) {
            throw std::out_of_range("索引越界");
        }
        return data[index];
    }

    T& operator[](int index) {
        return at(index);
    }

    friend void output(const Vector<T>& v) {
        for (int i = 0; i < v.size; ++i) {
            std::cout << v.data[i] << " ";
        }
        std::cout << std::endl;
    }

private:
    T* data;
    int size;
};

void test() {
    using namespace std;
    int n;
    cin >> n;

    Vector<double> x1(n);
    for (auto i = 0; i < n; ++i)
        x1.at(i) = i * 0.7;
    output(x1);

    Vector<int> x2(n, 42);
    Vector<int> x3(x2);
    output(x2);
    output(x3);

    x2.at(0) = 77;
    output(x2);
    x3[0] = 999;
    output(x3);

    cout << "x3.get_size() = " << x3.get_size() << endl;
}

int main() {
    test();
    return 0;
}

 

#include <iostream>
#include <iomanip>
#include <fstream>

using namespace std;

void output(ostream& out) {
    for (int i = 0; i <= 26; i++) {
        for (int j = 0; j <= 26; j++) {
            char m, n;
            if (i == 0 && j == 0) {
                char t = ' ';
                out << setw(2) << t;
            } else if (j == 0 && i != 0) {
                out << setw(2) << i;
            } else if (i == 0 && j != 0) {
                char m = 'a' + j - 1;
                out << setw(2) << m;
            } else if (i != 0 && j != 0) {
                char n = (i + j - 1 + 26) % 26 + 'A';
                out << setw(2) << n;
            }
        }
        out << endl;
    }
}

int main() {
    output(cout);

    ofstream outFile("cipher_key.txt");
    if (outFile.is_open()) {
        output(outFile);
        outFile.close();
    } else {
        cout << "Unable to open file.";
    }

    return 0;
}