C++ 中的多个输入和输出

Question

I have a code that is written in C++17 takes values x and y as inputs and give some value as output. I want to change it to take as many inputs ( x and y values) and give outputs. What changes needed to be done in the code

what is happening in the code is : with some x and y coordinates it finds the coordinate number.

int main(void) {
    const std::vector<Tile> tiles{ Tile(0),Tile(1),Tile(2),Tile(3) };

    // Test values
      const double  x{ 3700 };  // want to  add multiple entries here
      const double  y{ 11261 };  // want to  add multiple entries here

    // Check cell number
    for (const Tile& tile : tiles) {
        if (const auto [isInTile, cellNumber] = tile.getCellNumber(x, y); isInTile) {
            std::cout << "\nCellnumber: " << cellNumber << "\n:)\n\n\n\n\n\n";

        }
    }


    return 0;
}

I have tried many changes but always end in some error also I am new to c++ my primary language is python.

Answer 1

If you want multiple input values, then put x,y into a vector, like you did with tiles:

    // Test values
    const std::vector<std::pair<double, double>> test_values = {
        { 3700, 11261 },
        { 2500, 10000 },
        { 1000, 5000 }
    };

    // Check cell number
    for (const Tile& tile : tiles) {
        for (const auto [x,y] : test_values) {
            if (const auto [isInTile, cellNumber] = tile.getCellNumber(x, y); isInTile) {
                std::cout << "\nCellnumber: " << cellNumber << "\n:)\n\n\n\n\n\n";
            }
        }
    }