Compilare: main.cpp:3: warning: ignoring '#pragma optimize GCC' [-Wunknown-pragmas] 3 | #pragma optimize GCC ("Ofast") | main.cpp: In function 'int main()': main.cpp:48:14: warning: variable 'i' set but not used [-Wunused-but-set-variable] 48 | for(auto i:divi) | ^ main.cpp:76:22: warning: variable 'j' set but not used [-Wunused-but-set-variable] 76 | for(auto j:divi) | ^ main.cpp:42:15: warning: unused variable 'j' [-Wunused-variable] 42 | int n,m,i,j; | ^