Compilare: main.cpp:2:2: warning: #import is a deprecated GCC extension [-Wdeprecated] 2 | #import<fstream> | ^~~~~~ 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<algorithm> | ^~~~~~ main.cpp:5:2: warning: #import is a deprecated GCC extension [-Wdeprecated] 5 | #import<cstring> | ^~~~~~ main.cpp:6:2: warning: #import is a deprecated GCC extension [-Wdeprecated] 6 | #import<queue> | ^~~~~~ main.cpp:7:2: warning: #import is a deprecated GCC extension [-Wdeprecated] 7 | #import<unordered_set> | ^~~~~~ main.cpp:8:2: warning: #import is a deprecated GCC extension [-Wdeprecated] 8 | #import<string> | ^~~~~~ main.cpp:16:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] 16 | main() | ^~~~