Stdle #40 · modern · 2026-07-16

What does this C++ snippet output?

A past puzzle — fully playable. 4 attempts, hints on wrong guesses.

1#include <iostream>
2int main() {
3    auto f = [](int x) { return x % 2 == 0; };
4    std::cout << f(4) << " " << f(7) << "\n";
5}