qt二维数组进行转置

以下是使用Qt进行二维数组转置的示例代码：

#include <iostream>
#include <QVector>

int main() {
    QVector<QVector<int>> arr = {{1, 2, 3}, {4, 5, 6}};
    QVector<QVector<int>> arr1(arr[0].size(), QVector<int>(arr.size()));

    // 转置前遍历
    std::cout << "转置前：" << std::endl;
    for (int i = 0; i < arr.size(); i++) {
        for (int j = 0; j < arr[i].size(); j++) {
            std::cout << arr[i][j] << "\t";
        }
        std::cout << std::endl;
    }

    // 进行转置
    for (int i = 0; i < arr.size(); i++) {
        for (int j = 0; j < arr[i].size(); j++) {
            arr1[j][i] = arr[i][j];        }
    }

    // 转置后遍历
    std::cout << "转置后：" << std::endl;    for (int i = 0; i < arr1.size(); i++) {
        for (int j = 0; j < arr1[i].size(); j++) {
            std::cout << arr1[i][j] << "\t";
        }
        std::cout << std::endl;
    }

    return 0;
}