Compilare: main.cpp:5: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas] 5 | #pragma GCC optimization ("O3") | main.cpp:6: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas] 6 | #pragma GCC optimization ("unroll-loops") | main.cpp:7:9: warning: #pragma once in main file 7 | #pragma once | ^~~~ main.cpp:8: warning: ignoring '#pragma optimize ' [-Wunknown-pragmas] 8 | #pragma optimize("o", on) | main.cpp:9: warning: ignoring '#pragma optimize ' [-Wunknown-pragmas] 9 | #pragma optimize("", off) | main.cpp:10: warning: ignoring '#pragma inline_recursion ' [-Wunknown-pragmas] 10 | #pragma inline_recursion(on) | main.cpp:11: warning: ignoring '#pragma inline_depth ' [-Wunknown-pragmas] 11 | #pragma inline_depth(255) | main.cpp:12: warning: ignoring '#pragma unroll ' [-Wunknown-pragmas] 12 | #pragma unroll (4) | main.cpp:13: warning: ignoring '#pragma ivdep ' [-Wunknown-pragmas] 13 | #pragma ivdep | main.cpp:14: warning: ignoring '#pragma loop ' [-Wunknown-pragmas] 14 | #pragma loop(no_vector) | main.cpp:17:44: note: '#pragma message: Compiling main.cpp...' 17 | #pragma message("Compiling " __FILE__ "...") | ^