Compilare: main.cpp:2:2: warning: #import is a deprecated GCC extension [-Wdeprecated] 2 | #import <algorithm> | ^~~~~~ main.cpp:3:2: warning: #import is a deprecated GCC extension [-Wdeprecated] 3 | #import <vector> | ^~~~~~ main.cpp:4:2: warning: #import is a deprecated GCC extension [-Wdeprecated] 4 | #import <set> | ^~~~~~ main.cpp:5:2: warning: #import is a deprecated GCC extension [-Wdeprecated] 5 | #import <deque> | ^~~~~~ main.cpp:6:2: warning: #import is a deprecated GCC extension [-Wdeprecated] 6 | #import <cassert> | ^~~~~~ main.cpp:9: warning: ignoring '#pragma GCC Optimize' [-Wunknown-pragmas] 9 | #pragma GCC Optimize("Ofast") | main.cpp:10:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] 10 | main() | ^~~~