Compilare: main.cpp:3: warning: ignoring '#pragma optimize GCC' [-Wunknown-pragmas] 3 | #pragma optimize GCC ("Ofast") | main.cpp: In function 'long long int solve(std::vector<long long int>)': main.cpp:37:13: warning: unused variable 'j' [-Wunused-variable] 37 | int n,i,j,kon=0; | ^ main.cpp: In function 'int main()': main.cpp:77:13: warning: unused variable 'j' [-Wunused-variable] 77 | int n,i,j; | ^