Compilare: main.cpp:2: warning: ignoring '#pragma optimize GCC' [-Wunknown-pragmas] 2 | #pragma optimize GCC("O3") | main.cpp: In function 'int main()': main.cpp:27:12: warning: unused variable 'j' [-Wunused-variable] 27 | int i, j; | ^ In function 'void update(int)', inlined from 'int main()' at main.cpp:43:15: main.cpp:12:26: warning: 'ans' may be used uninitialized [-Wmaybe-uninitialized] 12 | for(i = x; i <= n; i += (i & -i)) | ~~^~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:32:29: note: 'ans' was declared here 32 | int st = 1, dr = n, ans; | ^~~