Question

How to print std::array elements in groups of 2 with C++

Answer 1

#include <iostream>
#include <array>

int main() {
    std::array<int, 7> arr = {1, 2, 3, 4, 5, 6, 7}; 

    for (size_t i = 0; i < arr.size(); i += 2) {
        if (i + 1 < arr.size()) {
            std::cout << arr[i] << ", " << arr[i + 1] << std::endl;
        } else {
            // Handle the case where the array has an odd number of elements
            std::cout << arr[i] << ", -" << std::endl;
        }
    }
}



/*
run:

1, 2
3, 4
5, 6
7, -

*/

 

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