Hi there, Is there any page where to practice distributed algorithms?, codejam distributed seems really good however the problem list isn't available ( it says Coming Soon )

Thanks in advance.

I have been solving Stone Age Problem and something caught my attention, what is the real complexity for map.clear and unordered_map.clear

The same code using map.clear passes but unorder_map.clear however cppreference says both are linear, so what is the real complexity.

• 157206280 map.clear AC
• 157206382 unordered.clear TLE

UPD1: I have proved that isn't related with collision because I haven tested initiating a new one instead of cleaning and it passes. AC

I have just seen that Petr & Egor moved from Java into C++, do you know why they have moved ? , any strong reason for it ?