Backpacking

/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/13/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x1b): undefined reference to `main'
collect2: error: ld returned 1 exit status

#include <iostream>

// int main(int argc, char *argv[])
// {
//     if (argc != 3)
//         return (0);
//     int a = std::stoi(argv[1]);
//     int b = std::stoi(argv[2]);
//     std::cout << (a + b);
//     return (0);
// }

void    add_two(int a, int b)
{
    std::cout << a + b;
}