All challenges
Code AnalysisBeginner 60s

Latch Misused as Reusable

What happens on the second phase here?
Starter code
#include <latch>
std::latch L{2};
void phase(){ L.count_down(); L.wait(); }
// called twice (two phases) by 2 threads

Think you can answer under pressure?

Get matched and answer live questions in 3-minute 1v1 battles. Elo ranking, badge tiers and bragging rights on the line.

Play this in a 3-minute battle