A silly, yet convenient, way to print data in competitive programming.

ConvenientPrint.cpp

#include <iostream>
#include <string>
#include <vector>

int main()
{
    // Some random data to play with.
    const std::vector<std::string> a = {"This", "is", "sort", "of", "silly"};
    
    // We wish to print the data separated by spaces, but only print
    // a new line once we're at the final element. The output
    // should be the following:
    //
    // "This is sort of silly\n"
    //
    // The index into the string " \n" is what makes this trick work.
    for (size_t i = 0; i < a.size(); ++i)
    {
        std::cout << a[i] << " \n"[i == a.size() - 1];
    }
    
    std::cout << "This statement should be on its own line" << std::endl;
}